Hi all crucial pz

Hi all
I am having a function module which gives the output as smartform.
I am creating a new function module in which I am calling that already created function module.
Which returns pdf size and pdf lines.Using this values shall I create a new pdf in a GUI screen.
Give me ur suggestion please/.,,,,,,,,,,,
Regards
Karthik
Edited by: karthikeyan palaniayya on Mar 13, 2008 6:13 AM
Edited by: karthikeyan palaniayya on Mar 13, 2008 6:24 AM
Edited by: karthikeyan palaniayya on Mar 13, 2008 6:34 AM

Yes you can create it . You can do it in many ways. You download it to Frintend then use the Function EXECUTE or cl_gui_frontend_services method execute to show it in a GUI.
or else you can display using html container also.

Similar Messages

865PE NEO2 FSIR fails memory tests

This is the second MB that I've had this problem with, so something is causing them to fail. Here's the story:
New install, 865PE Neo2 FSIR + P4 2.6GHz 800MHz FSB, 2 x Crucial PC3200 256MB DDR, everything seems ok, XP installs with no problems.
About a month down the road I'm plagued by sudden reboots, Microsoft Error Reporting says RAM, says to DL and run it's DOS memory check utility. I get the utility, create bootable CD and run the utility, computer fails all RAM checks. I pull each RAM stick in turn and re-run the check with each stick separately, still fails all tests. Shortly after this, the board refuses to POST. Ship the board back to New Egg for replacement.
Installed replacement MB with 4 x 256MB Crucial PC3200, Microsoft DOS memory check program passes, no problems. About 2 weeks later I run into minor instability so I run the same memory check again, the board fails all tests????? I pull all Crucial memory sticks and put in a test stick of Corsair XMS 3200; same result, failure of all memory tests.
At this point, WinXP still runs, but this is the same pattern that the other board showed, right until it quit altogether.
It occurs to me that I DID flash BIOS to 1.9 between the time I first tested the RAM and got a pass and the time I tested and got a failure, could this be a coincidence? I can't remember if I updated the BIOS on the first board or not, so this may mean nothing.
System Specs:
MSI 865PE NEO2 FSIR
P4 2.6GHz, 800MHz FSB (all defaults, no overclock, Vantec HS)
Crucial CT3264Z40B.8T PC3200, CL3 256MB (2 Modules)
Crucial CT3264Z40B.8T2 PC 3200, CL3 256MB (2 Modules)
(Tested with same results with single Corsair CMX512-3200C2PT 512MB)
Antex True Power 430W PS
ATI Radeon 9600 Pro
All PCI slots open
Seagate 120GB System drive, 7,200RPM primary master
IBM 30GB drive, 7,200RPM primary slave
LiteOn DVD ROM secondary master
Sony CDRW secondary slave
2 x IBM 30GB drives on Promise PATA.
I know I'm probably gonna have to RMA this board, but I'd really like to know what is causing this so I can avoid it next time.
If anyone has any ideas I'd sure appreciate it.
Scott

Quote
Originally posted by jwspicer
As they say - been there, done that. Always flash using DOS, and always keep backup, so I went back to the original BIOS for the board. No luck. Apparently once the screwup is done - it stays that way.
--BUT--
Suspect it is the reallocation for the P4 EE that is the issue. Reason is that Memtest86 has been running on that box for 9 hours now with NO error. However, it also shows only 104K of reserved memory. My other 865 board with onboard RAID (an ASUS P4P800 Deluxe) shows 687K reserved. So either the ASUS is wasting a lot of space, or the MIS is no longer correctly indicating the amount of memory reserved by the BIOS (including the Promise BIOS) at startup. Then Microsoft's utility is not correctly scanning. But Memtest, which probes for the "correct" setting, is. (The Memtest86 version is 3.0, and the test was done with the Promise enabled and drives attached (so the BIOS loads) and all the other setup was as it would be normally (standard IBOS options, etc.)
So who's right? And if MS' tool has the problem, does that indicate Windows XP reads memory the same way? Hmmm...
Hmm, I haven't tried reverting BIOS, but I'm typing this on the affected machine (which Memtest 86 says is fine) with only the two RAM chips it likes and so far no problems; I've run PCMark4 and 3DMark4 benchmarks all night and no problems, it was still happily churning away on 3DMark this morning. I guess either one of the Crucial sticks it doesn't like is bad or Crucial changed something in a revision to the chips it doesn't like.
Just a FYI, the Crucial sticks it DOESN'T like are CT3264Z40B.8T2
The sticks it DOES like (at slow or fast performance, forget about turbo or ultra turbo) are CT3264Z40B.8T
Both pairs are PC3200, CL3, 256MB DIMM's, single sided.
I think you're right about Microsoft's RAM tester being buggy, I can't believe ANYTHING could run if the RAM was actually giving the errors it shows, EVERY test shows things like "expected result 11111111 actual result ff1e0001" The Microsoft tester does run fine on the other 5 computers here; a mix of laptops and desktops; none using this board. It also ran on this board when it was installed, I guess the BIOS upgrade must be the cause.
Scott

SAP HR Data Migration Strategy

Hello Guys,
I worked in Data migration in the areas like SD,MM,FI. But I am new to HR. Can anybody please give me the HR data migration stratagey like what data's (eg, Master ,transactional etc) we need to load and sequences and methods available for each type?
Thanks
Kal

Hi chakri,
Documentation we use is Data Convertion Bueprint which is simply customer's requirements accroding to what infotypes he needs, what data should be migrated and which org. elements will be imported.
Another one is Master Template which is actually prepared by us (technical team). We prepare LSMW for each infotype mentioed in former document, then we document it in this master template to provide to customer required flat files format. We prepare such becuase sometimes some filed may be fixed, some added and even are read-only so should be skipped. So this document differs a bit with previous one in regards to infotypes' used fields. Than we sent this document to our local functional team which is resposible for providing files with given format.
In first document there are also some Golden rules, which describes exact steps for one entire cycle (staring from deliveirng the file, ending with validation of loaded data for one infotype), which each involed party should follow.
The last but not least important document is what we call Loading sequence. I already described it previously. It is just the order of loading the data to infotypes which you should follow. It also contains such information as
- number of records in provided file
- number of errors, successfully loaded records
- files which we share with functional team (error logs)
- finally files which we sent as validation data (extracted from system after successful load of infotype)
Unfortunatelly I can't provide you any of them as these are company documents which are not to be distributed. Sorry I am not allowed to break this rule.
Anyhow I hope it will give you an overview of what kind of documentation you need. It is of course of your team how you organize your work and documentation.
All in all crucial thing is communication between teams, which from my experiaence sometimes fails.
One more thing:
Always remeber to give points to usefull answers, that's how the forum works. Of course it is not obligatory !
Rememebr if you get something, you appreciate it by assigning points:)
Cheers
Marcin

Recovering RAID1 after non RAID boot

The system was setup to use 2 sata disks in raid-1 (mirror) configuration
with Windows XP (SP1).
Because of some other issues I did a bios update and forgot to activate raid in bios....
Windows XP booted up ok, propably doing some automatic driver update.
I wasn't allerted at that time, because I have previously seen
XP reconfigure itself after minor bios changes.
It was only latter when I noticed the new disk on explorer, and started to worry.
Turning RAID on in BIOS causes the Windows XP bootup to fail, because
of "missing system file" in windows directory. Trying without RAID
system boots ok.
Is there any way of recovering RAID operation without reinstalling everything?

It's strange that it wouldn't boot off the raid anymore simply because you unknowingly allowed it to boot with the Raid disabled after the Bios update. It Really shouldn't do that.
The only thing I can suggest is trying to restore the driver. Can you boot to safe mode with the Raid enabled? Then run WinXP system restore to before you updated Bios. Failing that try running system restore with the Raid disabled as it will boot that way and when it does the re-boot, go into Bios and re-enable the Raid then allow the reboot to continue.
Finally, you could do a repair installation of XP. Load the XP CD and hit F6 to load the Intel Raid driver again. Then let it find the XP partition and follow the prompts to do a repair install. This keeps all your settings and programs but any updates to XP(ie: SP2 etc...) will be gone. Again you should backup all crucial data before doing any of this.
Personally, if system restore doesn't work I would just burn a Slipstreamed Copy of XP with SP2 built-in from your original disk and do a fresh install.
Not what you wanted to hear I know....anybody got any other ideas?

X-Fi Xtreme Music Questi

Hello there, I`m a Romanian fan of these cards, I`ve already had SB Li've! 5., Audigy ES, Audigy 2 ZS and now X-FI Xtreme Music.
. I`m facing some problems that I think are driver-related... First of all, when testing the mic-in, I get a big delay, like half a second and the sound is somewhat weird, it`s quite unlike the feed. How can I solve this problem?
2. There is a setting, much like with 5. amplituners and amplifiers, which allows to select between small and large satellites (maybe medium too). This has an effect on the bass. Now, I know that this feature usually loads some bass onto the front satellites too, but in my case that happens, but the same amount of bass disappears from the subwoofer. I mean it would be nice to have bass on the subwoofer and on the satellites too, because these ones are a little bit larger, monitor style, with bass-reflex port and they`re two-way.
2. The CMSS 3D does not seem to work. I`ve only felt it`s difference when switching on once, and I have to say, I tried many times. It just wont` feed anything to the rear channels, and the sound timbre won`t change at all. Stereo focus does not change anything. I know what it should sound like. I can feed 6 channels from Foobar2000 but not with cmss. Games also work in full 5..
3. The card is capable of 92 khz although this frequency is not whown in the Audio Creaton freq change tab. It is not at all crucial, but I`m curious which program can take advantage of this frequency.
4. Audigy ES played very nicely over Creative ASIO, X-Fi produces an error message like "too many channels"... I`d like to play through ASIO, so if you have any suggestions... maybe an installation of asio4all?
Cheers and thank!

I have been getting that same delay on the mic in( or 2)but only when I go to use the mic in play control/mixer(not record source)If I record then no delay.

Update SAP Solution Manager 7.0 to EHP 1 with SP 19

Hi!
We use SAP Solution Manager 7.0 (SP 17) on Linux with Oracle
and would like to update this system to EHP1 SP19.
First of all I installed ST-ETP Add-On via SAINT to call the system "Enteprise Edition"
Now I have few questions about the further procedure:
1) can this update from SP 17 --> SP 19 be implemented via SAINT and with one step?
2) what is the documentation of this process?
3) are there any restrictions about Linux and 32 Bit?
Thank you very much!
regards

check this Note #1276022, it contains all crucial information you will need

Could anyone privide me a template ASAP for FI?

Hi All,
I'm looking for a template ASAP for FI.
Could anyone help me?
Thanks

SAPu2019s IMPLEMENTATION METHODOLOGY u2013 AN INTRODUCTION
SAP's methodology defines five phases for implementation
1.0 Phases of the SAP Implementation Roadmap ( Adapted based on SAP's ASAP Methodology )
Phase 1: Project Preparation
During this phase the team goes through initial planning and preparation for SAP project.
"Project formally initiated and planning well under way. "
Phase 2: Business Blueprint
The purpose of this phase is to achieve a common understanding of how the company intends to run SAP to support their business. The result is the Business Blueprint, a detailed documentation of the results gathered during requirements workshops.
u201C Project team gathers requirements and conducts conceptual design of the solution.u201D
Phase 3: Realization
The purpose of this phase is to implement all the business process requirements based on the Business Blueprint. The system configuration methodology is provided in two work packages: Baseline (major scope); and Final configuration (remaining scope).
u201C System solution built and integration tested, end users trained u201C
Phase 4: Final Preparation
The purpose of this phase is to complete the final preparation (including testing, end user training, system management and cutover activities) to finalize your readiness to go live. The Final Preparation phase also serves to resolve all critical open issues. On successful completion of this phase, you are ready to run your business in your live SAP System.
u201C Authorization to cut over to new system solution u201C
Phase 5: Go Live & Support
The purpose of this phase is to move from a project-oriented, pre-production environment to live production operation.
u201C Solution confirmation and project closure u201C
2.0 Implementation Lifecycle is to provide recommended deliverables to support the activities-based methodology. This list of deliverable will to be used by program/project team leads at the beginning of an implementation program and throughout. This will help to ensure an understanding of the methodology in terms that are easy to relate to and help to establish the program time line.
Deliverables are defined as u201Ca result u2013 evidence of which is provided by something tangible such as a document or by observation or by measurement, which is important to the success of the project or program.u201D This differs from milestones that are described as u201CAn event of special importance, usually representing the completion of a major phase of project work. Reviews are often scheduled at milestones.u201D
Deliverables will not replace the content-rich roadmaps, but provide a front-end that identifies the WBS number of the applicable work steps in the roadmap. It is for this reason that description of outcomes, and roles associated with outcomes, are not included in the document, as this would be redundant to what is already in the roadmap.
Phase 1 : Project Preparation
The purpose of this phase is to provide initial planning and preparation for your SAP project. Although each SAP project has its own unique objectives, scope, and priorities; the steps in Phase 1 help you to identify and plan the primary focus areas that need to be considered.
The key deliverables for this phase include:
u2022     Initial Project Planning and Kick-Off
u2022     Project Procedures and Standards
u2022     Ongoing Project Management
u2022     Training Plans
u2022     Quality Management Project Preparation
u2022     Milestone: High Level Business Requirements Completed
Phase 2 : Business Blueprint
The purpose of this phase is to create the Business Blueprint, which is detailed documentation of the results gathered during requirements workshops. Furthermore, the Business Blueprint documents the business process requirements of the company. With this, you can better understand how the company intends to run its business within the SAP System.
The key deliverables for this phase include:
u2022     General Project Management
u2022     Organizational Change Management
u2022     Training and Documentation Plan
u2022     Business Process Blueprint
u2022     Development Procedures and Requirements
u2022     Milestone: Business Blueprint Completed
u2022     User Roles, Authorizations Requirements and Design
u2022     Quality Management Business Blueprint
u2022     Milestone: Project Implementation Environment Ready
Phase 3 : Realization
The purpose of this phase is to implement business and process requirements based on the Business Blueprint. The objectives are final implementation in the system, an overall test, and the release of the system for production (live) operation. In addition, the project team receives relevant knowledge.
The key deliverables for this phase include:
u2022     General Project Management (Realization Phase)
u2022     Organizational Change Management (Realization Phase)
u2022     Training and Documentation Plan (Realization Phase)
u2022     User Roles and Authorizations Implementation
u2022     Development and Customization
u2022     Baseline Configuration and Confirmation
u2022     Functional and Performance Test Planning
u2022     Final Configuration and Confirmation
u2022     Final Integration Test
u2022     Milestone: Core Business Processes Implemented
u2022     Quality Management Realization
Phase 4 : Final Preparation
The purpose of this phase is to complete the final preparation (including testing, end user training, system management and cut-over activities), to finalize your readiness to go live. The Final Preparation phase also serves to resolve all crucial open issues. On successful completion of this phase, you are ready to run your business in your live SAP System.
The key deliverables for this phase include:
u2022     General Project Management (Final Preparation Phase)
u2022     Functional and Performance Tests Execution
u2022     Milestone: Project Implementation Completed
u2022     Cutover and Production Support
u2022     Quality Management Final Preparation
u2022     Milestone: Start of Production
Phase 5 : Go-live & Support
The purpose of this phase is to cut over to live productive operation and to continuously support and improve live operations. There are two distinct periods of this phase:
Project End
During the time when the system is first live, all issues and problems are resolved, transition to the production support team finalized, knowledge transfer completed, and the project signed off.
Continuous Improvement
Now that the project is over, the production support team monitors the system and resolves live business process issues. Proper change management procedures are established and ongoing end user training is conducted. Plans are made to continuously review and improve business processes.
The key deliverables for this phase include:
u2022     Project End
u2022     Milestone: Handover Completed
u2022     Continuous Improvement

Need help SAP gurus

hi SAP gurus,
Can any body explain me about ASAP. What is the significance of this in SAP implementation.
what is the meaning of "Tickets" in SAP?
with regards,
Sourav Bhaumik

The following R the diff phases of ABAP programming.
Phase 1 : Project Preperation.
Phase 2 : Business Blueprint.
Phase 3 : Realization.
Phase 4 : Final Preperation.
Phase 5 : Go live and Support.
Realization is the most important phase where a ABAPer enters,All the beginers(ABAP) enter into SAP world in this phase.
Phase 1 : Project Preperation : In this phase of the ASAP Roadmap,desicion makers define clear project objectives and an efficient decision-making process. A project charter is issued,an implemetation stratergy is outlined and the project team as well as its working environment r established.
The first step is for the project managers(not for ABAPers) to set up the implementation project(s).They draw up a road draft of the project,appoint the project team and hold a kickoff meeting.The kickoff meeting is critical, since at this time the project team and process owners become aware of the project charter and objectives and are allocated their responsibilities,lasting thriughout the project.
Phase 2 : Business Blueprint
In this phase,The scope of R/3 is defined(to solve the task) the documentation of R/3 implementation is done.The final document prepared is called "Business Blueprint".This is done by project team under the project manager.Here the exact step by step procedure in which the task has 2 be carried out is defined.
The Business Blue print serves as the conceptual master plan & is assembled into a detailed written document.This document summarizes and documents business requirements in detail and serves as the basis for organisation,configuration and if necessary,development activities.
The business Process Master List (BPML) is the primary activity-tracking & control mechanism used by project management team during the realization phase. The BPML is first created at the end of the Business Blue print phase from the Q&Adb in order to create the Baseline Scope Document and ten used during the next phase for monitoring and controlling the R/3 configuration and testing activities.
Phase 3:
Realization:This is the moost important phase,because,this is where maximm number of Techincal people will be at work.Especially people having experience less than 4-5 yrs.
The purpose of Phase 3 is to configure the R/3 System,in ordr 2 have an integrated and documented solution that fulfills Ur client's business process requiremnts.
In this phase,configuration of the system is carried out in 2 steps:
(1)Baseline and
(2)Final Configuration.
(1)Base line
The Base line Configuration is designed 2 configure abt 80% of ur clint's daily business transactions & all of the master data,& organize structur.The remaining configuration is done in process-oriented cycles.The Businessss Blue print is used as D guide 4r D system config,done using D mplementation guide.which will be describd in detail in tihs forum.
After this process,data transfer pograms as wella s interfcaceds ,ned 2 be tested.
Phase 4:
Final Preperation
The purpose of this phase,as name suggests, is 2 complete the final preperation of the R/3 systm 4r going live.This includes testing, user training, system managment & cutover activities,2 finalize ur radiness 2 go live.This final preperation phse also serves 2 resolve all crucial open issues. On successful completion of this phase, U r ready 2 run the business in ur productive R/3 system.
In this phase,the end users go thru comprehensive training.
Phase 5:
Go Live and support
Now U r ready to go live with ur productive system ! Afterwards, the project team focuses on supporting the end users,4r which training may not be completed.It is also necessay 2 establish preocedures & measurements 2 review D benefits of ur investments in R/3 on an ongoing basis . Key SAP Services 2 support U in this phase include
The onlin Sevrvices System (OSS)
REMOTE Consulting
EarlyWatch Services.
In this phase the implementation project is concerned with supporting & optimizing the operative R/3 system,both the technical infrastructure & load distribution as well as the business process.

I want to install an SSD as my OS drive. Can I do a copy of my existing drive straight the new drive?

I wish to install an SSD as my OS drive. I seem to recall in my travels that it is possible to copy my existing OSD, install the SSD, Copy old drive info' to new drive and then set that to be the boot drive.
Any directions to where I can find out how to do this would be greatly apprecciated. Providing this can be done.

TRIM Part 2
Trim on SSD Drives
When I first wrote this article/thread, which was for my own benefit and was eventually turned into this thread, as it is today, trim was not available on ssd drives, when it did arrive, there were mixed idea’s on how it worked, a lot that was incorrect at the time, a lot of new users do not understand the use of Trim even today, explanations tend to very technical as trim is a complicated issue at the best of times. I found a simple explanation for the implementation of trim in late 2009, I came across it again the other day, it still holds true today so here’s the link, ( I know you are going to point me to AnandTech explanations, there are links in this thread, if your a technically minded person, then AnandTech’s articles may be a better option ) this simpler explanation is still active in late 2011. As you can see if you carry on reading and don’t turn off, how complicated it can be for a non-technical user of ssd drives. So here’s my explanation of trim. Remember this a generalization of most ssd drives, it’s a lot easier when your dealing with your own ssd drive.
Trim and it’s association with GC ( garbage collection ) varies depending on how the controller’s "GC" handles the use of Trim ( Win7 ). Trim is activated, by deleting files in the OS ( Win7 ), it doesn’t actually trim the ssd drive, but marks the block/file header’s with a 1 making that block/file available for being re-written or written over. Trimming is actually done by the GC and will only work if the block doesn’t contain other files that haven’t been marked deleted, but this again depends on how GC is implemented, the GC can wait till the block is full, then move undeleted files to another block allowing for the block to be trimmed ( GC ), in doing this, the GC uses a lot more write amplification than it does if Trim in win7 has previously marked these blocks/files for deletion, flash memory can only be ‘written over’ if all the information in that block as been marked with 1, this allows the whole block to be re-written. GC can only erase/Trim a full block, not individual files or pages.
What trim does is mark these blocks/files etc and make it simpler for the inbuilt GC ( garbage collection ) to recognize the blocks that are available for further use, on some controller’s this will not necessarily happen immediately, it depends on whether the controller as been designed for “idle” use, “on the fly” use or “stand by use”, GC/Trim can be brought into use in many different ways, having the computer sitting with the bios open, having the computer idling at log in, placing the computer in stand by mode, deleting files or just simple idling the computer overnight. It’s a matter of finding out how the controller in your particular ssd handles the garbage collection. You will find the most efficient way is by experimentation or by other members passing on there particular way of doing it.
Low level formatting used on conventional HDD drives writes mainly 0’s to every cell on a SSD drive, it’s the opposite to how flash memory actually works, if you low level format with Win7 or any software that writes 0’s or 0’s and 1’s to the individual cells, you are not necessarily cleaning the ssd drive completely, ( hence the need for secure erase software ), you can actually make the performance worse.
If you use software designed for writing 1’s to each cell, like you would if it was designed for ssd drives, this will “clean” the drive and is a good thing to do if you are selling the drive, or as a last resort, if you are having problems with your ssd drive. The downside of using this type of erasure, is that it not only takes a long time it uses high write amplification and if used regularly can reduce the flash cells life expectancy considerably, these type’s of deletions bypass most controllers durawrite capabilities ( the way controllers extend the life expectancy of the ssd’s individual MLC cells ), Durawrite ( Sandforce ), other controllers have this technology in some form or other, it increases MLC life expectancy by between 5 and up to 30 times depending on the design of the controller.
Basically a command line program like dispart and dispar will secure erase a ssd drive either by writing to the individual ( “Cleanall“ command ) cells or simply marking the blocks to be deleted with a 1 ( “Clean” command ), you need to use the latter which takes only seconds and will return the majority of ssd's to a new state, without impacting too much on write amplification.
That’s how I see the use of GC and Trim in win7 today ( Nov 2011 ). Note! Most ssd software, tool boxes etc use the inbuilt win7 diskpart commands, to make it easier than using the command line. There is a explanation for the use of diskpart and can be found HERE, but NOTE! It’s written with conventional hard drives in mind, not ssd drives.
In the case of most Toolboxes provided by manufacturer’s, the OCZ Toolbox is a typical example, they are incompatible with Intel’s RST driver, you would need to use Diskpart from the command line. Also Toolboxes will in most cases, not secure erase a ssd with a OS on it or if the ssd drive is in use as the OS drive eg. ( “C:/” partition ). If you want to secure erase an OS drive you need to delete all the partitions on the drive including any hidden partitions, there’s an excellent tutorial on the Intel toolbox on LesT’s website, TheSSDReview here’s the Link.
You will have to use Diskpart or Diskpar from the Dos prompt, you can’t be in windows with the ssd drive you intend to erase. This is mainly if the toolboxes fail to work and deleting the partitions refuses to solve the problem.
I’m sure there are exceptions to what I have written and easier ways of explaining trim or secure erasing some types of ssd drives. All I ask is you don’t isolate passages out of context, please read the whole article, before you tell me I’m incorrect. There are a lot of more informative people out there than me on this subject, so I’m open to criticism on the subject. I want to impart only the correct facts on this thread.
Trim and the IDE issue The Intel IDE drivers after Vista sp2 are fully compatible with the trim command , but for trim to pass through this command, the ssd controller itself has also got to be compatible with IDE mode, eg. Intel drives with the Intel controllers are ( according to Intel ) fully compatible. The Crucial M4 appears not to be, other controllers optimized for AHCI may also not be compatible. I can’t comment on the Intel 510 as I’ve only ever used them in AHCI mode.
Wearlevelling Here’s an explanation that’s not too complicated, its from StorageSearch.com, here’s the LINK.
Overprovisioning Also from StorageSearch.com, a simple explanation for the need for overprovisioning, same link as above. This actual link covers a number of technologies used by the ssd controller in ssd drives. Overprovisioning improves write performance, if the ssd is used in a high write situation, increasing the overprovisioning will improve performance and write endurance, in a high read situation, too much can hinder performance, in a os situation the 7% supplied on client drives, in most cases is probably adequate depending on it’s use, if there’s a lot of writing done to the drive daily, reducing the partition size, which will increase overprovisioning, by a small amount may improve performance.
http://forums.extremeoverclocking.com/showpost.php?p=3643482&postcount=1
Trimming SSD Performance Degradation
Thursday, October 14, 2010
Todays solid state drives are worlds apart from those of just 3 years ago, however they are not yet perfect. Performance degradation can still be observed through ‘seasoning’ of the SSD as well as filling it to capacity. SSD manufacturers have been successful in combating the effects of seasoning but performance degradation when an SSD is filled to capacity seems to be just a bit more difficult.
Typical testing of most drives, through use of random data, will result in an observable performance drop which may start as soon as the SSD is filled past the 70% mark. This article will describe the common characteristics of SSDs followed by a simple method to ensure that maximum performance is sustained with the drive.
SEASONING
Much has been said with respect to performance degradation as a result of the ssd becoming ‘seasoned’ over time. By ‘seasoned’, we mean that the drive will eventually use up all of its empty blocks of NAND, or memory and, without TRIM, the process of writing to a drive actually becomes that of reading the block of data, understanding that it is invalid, erasing and then writing rather than simply writing to a clean block. Performance is greater when writing to ‘clean’ memory vice memory which has previously been used and contains invalid data that has not been cleared. The root cause of degradation is that when a non-TRIM ssd is told to delete data, it actually only marks the area as clear which leaves the invalid data intact and tricks the ssd into believing that the NAND flash is available.
Data on a SSD cannot simply be over-written as it is done on a hard drive and this gets a bit more complicated when we erase information and the block that it is located on also contains valid information that we don’t want deleted. The process then becomes read data, recognize the valid information, move it to another clean block, erase the present block and write. Manufacturers have tried to combat this issue of performance degradation by creating 3 solutions to the problem which are wear leveling, TRIM and ITGC (or Garbage Collection).
Wear leveling
Wear leveling is the process of the ssd understanding how many times each cell of memory has been written to and then ensuring that all are all written to evenly. After all, the life span of the ssd is dependent on the total number of writes that are written to and this has been coined as ‘write endurance’. Unlike the hard drive which stores information in a static location, the SSD will move information around on a continuous basis without your knowledge to ensure that all cells wear evenly, thus affording a longer lifespan for the ssd. By also doing this, the drive can ensure that only the valid information is used, leaving blocks to be cleaned up by TRIM or ITGC, again without the knowledge of the user.
ITGC/GC (Idle Time Garbage Collection)
Garbage Collection (GC) is the process by which the SSD recognizes, in idle time, which cells are valid and which are not valid (or deleted) on the drive. It then clears the blocks of the invalid data to maintain the speed of writing to ‘clean’ pages or blocks during normal operation. GC was initially shown to be a last resort if TRIM was not available, however, recent releases are showing new methods to be very aggressive and results equal to that of TRIM are being observed. This is a huge benefit to those using RAID systems where Garbage Collection is accomplished as TRIM is not an option.
The SSD Review was able to discuss GC and TRIM with Crucial as it pertains to their SATA3 releases as it has been observed that their RealSSD C300 SATA3 drives do not appear to show any performance degradation over extended use. Crucial confirmed that they had to consider that TRIM would not pass through the present release of SATA3 drivers which helped recognize that very aggressive GC would be necessary for the C300 SATA 3 SSDs success. The subsequent result was that many forum threads were created by avid users who were questioning whether TRIM was, in fact, working in their SSDs as no performance degradation was seen even in the toughest of test beds. To dispel a common belief, it is not the Marvell processor of the Crucial RealSSD that prevents TRIM from being passed, but rather, that of the hardware and drivers of SATA3 capable motherboards. All Crucial SSDs are fully capable of passing TRIM direction to the OS.
TRIM
TRIM occurs when the ssd clears blocks of invalid data. When you delete a file, the operating system will only mark the area of the file as free in order to trick the system into believing the space is available. Invalid data is still present in that location. Its like ripping out a Table of Contents from a book. Without this, one would not know what, if anything, is contained on the following pages. TRIM follows the process of marking the area as free by clearing the invalid data from the drive. Without this, the process of reading, identifying invalid data, deleting or moving and clearing the block before writing can actually result in performance 4 times slower than it would have normally been as a new drive.
In recently speaking with Kent Smith, Sr. Director of Product Marketing for SandForce, he identified that there are many variables outside of the hardware that are responsible for users not seeing the benefits of TRIM, the first of which are drivers at the OS level which have to be working optimally in order for TRIM to function correctly. Another example occurred with early Windows 7 users testing their newly installed drives and not seeing the benefits of TRIM. Examination of these complaints revealed that users would have originally made the Windows 7 installation on hardware that did not support TRIM and then cloned to the SSD to which TRIM was supported but would not work because of the original configuration settings. The same could be said of cloning an OS that originally had AHCI turned off followed by a clone to the SSD where TRIM was not being passed, simply because AHCI has to activated for TRIM to function.
ENHANCE SSD OVER PROVISIONING MANUALLY
In our conversation, we breached the topic of SSD capacity to Mr Smith to which he replied, “Are you trying to optimize performance or maximize capacity?” which reminded us that the main purpose of the consumers transition to SSD was to maximize their system performance. Filling a drive to capacity will hinder TRIM and GC ability which will result in performance degradation. Many drives will start to display performance changes once filled to 70% capacity. Testing has shown that the user can very simply add to the drive, especially if it is a 7% over provisioned drive, by reducing the size of the partition, the new unallocated space of which will automatically be picked up as over provisioning and benefit the SSD in many ways. This idea has been tackled by Fusion IO who includes a utility within their products that allows the user complete control of the size of their over provisioning.
OWC 120Gb SSD With 16x8Gb NAND Flash = 128Gb Total (7% OP)
Over provisioning allows more data to be moved at one time which, not only enhances GC, but also reduces write amplification to the drive. Write amplification is a bit tricky of an explanation but it is the measure of how many bytes are actually written when requiring storage of a certain number of bytes. A ratio of 1:1 would be ideal but not a reality and a typical result would be an actual size of 40kb written for a typical 4kb file. In short, maximizing over provisioning and reducing write amplification increases the performance and lifespan of the drive. Over provisioning also provides for remapping of blocks should the bad blocks be discovered during wear leveling, which unlike a hard drive, does not reduce the end user capacity of the drive. The replaced blocks simply come from the over provisioning.
http://thessdreview.com/ssd-guides/optimization-guides/ssd-performance-loss-and- its-solution/
Reducing the time GC takes
Increasing the amount of freespace available after a GC (which increases the time it takes for performance to degrade after a GC)
It lets the FTL have a wider selection of pages to choose from when it when it need a new page to write to, which means it has a better chance of finding low write count pages, increasing the lifespan of the drive
Now, I want to be clear, a sufficiently clever GC on a drive that has enough reserved space might be able to do very well on its own, but ultimately what TRIM does is give a drive GC algorithm better information to work with, which of course makes the GC more effective. What I showed above was a super simple GC, real drive GCes take a lot more information into account. First off they have to deal with more than two blocks, and their data takes up more than a single page. They track data locality, they only run against blocks have hit certain threshold of invalid pages or have really bad data locality. There are a ton of research papers and patents on the various techniques they use. But they all have to follow certain rules based on on the environment they work in, hopefully this post makes some of those clear.
http://www.devwhy.com/blog/2009/8/4/from-write-down-to-the-flash-chips.html

"Replace information on iPad" Mail accts next sync?

When I first set up my partner's iPad2, I used her mail acct info within my Mac login acct. In order to now get it to sync with the same Mail acct but from her Mac area, we need to do MacItunes>iPad>Info:Advanced:"Replace information on this iPad √Mail Accounts" ("iTunes will replace the selected information from this computer").
Now this could mean just the acct settings or all the mails too (ie. trash the ones on the iPad). I suspect the latter (and therefore will need to send all crucial mails across before I re-sync); can anyone confirm this?
She also has a GMail acct which only sits on the iPad. I guess this needs setting up within her Mac area too? Advice on the best order of these steps?
PS.(afterthought) I gather only IMAP (not POP) accts allow one to have folders in iPad Mail; does every ISP other mail in both or do I need to check with ours before we attempt this? Any threads to point me too.
Thx

Hi there Greg,
Welcome to Apple Support Communities.
It sounds like you want to always replace content on your iPhone 5S with content from Outlook on your PC, to do this you’ll just have to Reset the Sync History in iTunes as shown below.
Troubleshooting Sync Services on Windows with Microsoft Outlook 2003, Outlook 2007, or Outlook 2010 - Apple Support
To reset sync history:
Open iTunes.
From the Edit menu, choose Preferences.
Click the Devices tab.
Click the Reset Sync History button.
If the issue continues and you know all of the data is on the computer:
Reset the Sync History again using the steps above.
Select the device in iTunes and click the Info tab.
Scroll down to the Advanced section, and under "Replace information on this iPhone/iPad/iPod touch" select Contacts or Calendars.
Click Apply.
Cheers,
-Jason

What Mac should I get for basic Photoshop usage?

I'm hoping to tap into the vast resources/opinions here.
I'm planning to get a Mac for my office. It will be use primarily for basic Photoshop usage. Maybe making some movies from iPhoto. The other usage would be normal ones like web surfing.
Please suggest a desktop Mac first, and a laptop Mac 2nd.
Which Mac model would be most cost-effective and doesn't need upgrading every year?
Thanks a lot!
Mavis

Mavis, the answer to your question really depends on what you mean by 'basic' Photoshop use.
Bearing in mind that Photoshop has been used by professionals in graphics and design houses for many years, typically working on hardware that is substantially less powerfull than a Mac mini, there is no reason to beleieve that even the entry-level Mac can't sucessfully be used for this kind of work, and those who suggest otherwise simply haven't tried it. However, there are some things that you need to keep in mind when using this software: the first is that Photoshop runs better the more memory you have, the second is that Photoshop files can require large amounts of storage, and the third is that the most recent version tends to place heavy demand on the processor - meaning that the faster the processor the better it runs.
Thus, any Mac you buy for Photoshop use should ideally be equipped with 1Gb RAM rather than any less. You should also consider getting either the largest internal hard drive you can, or an external firewire drive for extra file storage.
A Mac mini with 1.42GHz processor and a 1Gb RAM upgrade would certainly be sufficient, even for fairly demanding Photoshop work. The internal 80Gb drive for that model would give you a reasonable amount of space for files, though you would be wise to add a larger external drive too if the work you are doing is at all crucial. The same system would also be capable of your iPhoto work too. If your use is more casual, then the 1.25GHz mini would be enough, but again you'd need the 1Gb RAM upgrade.
If your intended use is more at the commercial end of Photoshop use, then the chances are that even though a mini would be sufficient, you'd be better with an iMac or G5 tower, simply because for pro-level work, these systems are faster and permit smoother and more productive workflow.
It also has to be said that no Mac will need upgrading each year, unless your level of use or your needs of that system change dramatically. A system you buy today will remain just as functional into the future. In other words, the best way to minimize the risk of having to upgrade in the forseable future is to work out exactly what you want the system for and buy a system that meets your present (and projected future) needs.

Macbook pro freezing problem 2010 SSD Optibay Help

Hi just need a little advice, I have a Macbook Pro mid 2010 15" running mountain lion
Around 2 years ago i replaced the superdrive with a 60gb Crucial SSD housed in an optibay. On this runs the OS and all of my applications. In the normal HD drive I have a 1TB disc which saves all my photos movies music etc.
Everything has worked fine but recently my Mac keeps freezing and I get a spinning ball, this happens normally after around 10 minutes of use no matter what apps I have running. It will then require keeping hold of the power button to shut it down.
I am unable to run hardware test as I have no disc drive to insert the original disc and holding down D does not work.
I have checked and repaired disk permissions but it stated nothing was wrong.
Any advice much appreciated.
Thanks Dan

Apple Store won't touch it with an Opti Bay installed. It's almost certainly a firmware issue with the Crucial SSD. Is it the M4? There is a well known bug when you hit 5000 hrs of uptime that results in hourly beachballs on all Crucial M4 SSDs.
You need to check the drive's firmware status in About This Mac -> More Info -> System Report -> Serial-ATA -> and then check the "Firmare Revision" of your SSD against Crucial's website:
crucial . com . store / ssd. aspx (remove the spaces - Apple is jealous of other links, sorry)
Then find the latest firmware and figure out the best way of installing the update - it will not be easy without a CD drive unless Crucial has finally finished their Mac OS X-compatible software for providing firmware updates - which they had not yet provided as of a couple months ago when I ran into this issue.
The bottom line is the Apple Store will be of no use to you unless you remove your Opti Bay and replace your original components, and even then your warranty is probably expired so you're out of pocket and they won't have the solution anyway if it's indeed Crucial firmware.
FYI, if you do have an M4 from Crucial, the firmware revision you WANT is 040H.
[edit]
I should note two important things:
1) It is impossible to update the SSD's firmware with an EXTERNAL/USB CD drive/burner. Only a SuperDrive connected to the SATA ports is bootable.
2) Crucial provides a Windows program that is supposed to update any internally connected SSDs to the newest firmware but it does not work on a Mac with Boot Camp - you must remove your SSD and install the firmware via a Windows computer or through the much more difficult process of building a bootable Mac USB key with the firmware revision installed on it. I never tried this route, because it seemed unlikely to succeed.

SuperDuper kills only Crucial M4 SSDs or all the brands?

Today I have bought a Crucial M4 SSD 2,5 512GB to replace my MacBook Pro HD. I connect it with usb to sata cable to my Mac, format it and begin copying the data using SuperDuper. 5 minuts later I get an error, the drive is ejected and from that moment it has been impossible to mount, erase or repair.
Disk Utility shows the drive with the partition name blurred. If I click mount I get the "run first aid" dialog. First aid says the drive seems OK. If I try to format it another error and DiskWarrior reports a hardware failure. Searching the discussions I find it seems SuperDuper damages the lookup table or something similar. As it was not exactly my idea of quality paying as I paid 1 euro per Gyg, I have returned the SSD and got a refund. The question now is: are all the SSD drives so fragile or partially incompatible or there's one that I can use just exactly like a mechanical hard drive???

Just to clarify the subject: SuperDuper KILLS NOTHING. I bought a second identical Crucial M4 512GB and I got same identical behaviour: ten minutes installing MacOS from DVD then death, unrecoverable, not recognized as a hard drive nor nothing attached to the usb bus...
I needed a PC to revive the drive and to upgrade the firmware. After that it works like a charm, first in an external drive for testing and now inside my 2008 MacBook Pro.
So if you are looking for an ssd drive and googling you end reading this, first of all UPGRADE THE SSD FIRMWARE, and then don't forget to enable TRIM using one of the Trimenabler apps you can get on the internet.
Hope this helps somebody.

HT5381 i did a software update and now mail wont open at all

Help......my mail app is coming up with an error "You can't use this version of Mail with this version of Mac OS X". Can I uninstall the update?

!! WARNING !!
about the September 2012
"Security Update 2012-004"
If you've got "Mail.app" in a folder OTHER THAN the root "Applications" folder,
MOVE "MAIL.APP" TO THE APPLICATIONS FOLDER
**BEFORE** INSTALLING THE "004" UPDATE!!
Because *IF* you use OSX's integrated Software Update app from the Apple menu to do the "004" updating, and *IF* your Mail.app is NOT in the Applications folder, then buddy, you've got some sitdown fixit time ahead of ya and/or some internet tie-up time downloading the "004" update file itself.
Been through it all, already. In fact, just got done getting my Mail back up & running. And I tried everything short of attempting to unpacking my "Mail.pkg" receipt file using... whatever... even Pacifist couldn't get it out. So that fixit "Plan D" died quick. And I'm not savvy enough to use Terminal commands to do "Plan E," so that SUDO stuff was my brick wall.
So I compressed my entire "Mail" subdirectory that contain all my emails, for safekeeping during the required surgery, or whatever would work, leaving the original Mail directory where it was. In case something bad happened in all my fixit whatevers, the one thing I *didn't* want to cross paths with was a hosed Library -> Mail folder. Then I'd be pssd. But I can wipe out that ZIP now 'cause all's well now. After 6 hrs of downloading thru a mobile broadband hotspot running at only 14KB/sec speed due to my having gone over my T-Mobile hotspot plan's bandwidth amount (throttled-down after reaching the limit, tho not cut off completely. Kinda nice, but it's a huge speed drop).
I tried moving the two Mail.app versions around, compressing them & then trashing the original so they wouldn't be recognized, blabla, even booted my Mac in Safe Mode & reinstalled the "MacOSX 10.6.8 (Snow Leopard) Update Combo.dmg" update file, which in the past has fixed many problems. But after restarting, not this one.
Like a dummy who ignored knowing better, I had my Mail.app in a folder other than the Applications folder, with only an alias to that being in the Applications folder. NOT GOOD ENOUGH. The updater don't see that as nuthin special or useful.
So if you've got, like I've got, "old" icons for Mail.app (v4.5) in your Finder toolbar & in your Dock that all point to "Mail.app v4.5" in whatever folder you've got that in, other than in the Applications folder (where Apple apparently REQUIRES that it be located, and ONLY there, at least for OSX updating purposes), then after you download & autorun that "004" updater using Software Update, NONE of your pre-existing Mail icons will work. And MOST aggravatingly, **NOR** will your brand-new "Mail.app v4.6" work that came out of the "004" updating installation. So basically, your Mail.app's... all of 'em.... are hosed. But only if you run the "004" update without your "Mail.app v4.5" being located in your Applications folder and ONLY in your Applications folder. And duplicates of Mail.app, scattered around your HDD?? Always a problem with many Apple apps.... The Apple software engineers apparently like 'em to be in the Applications folder, and in ONLY there, and ONLY the latest version, and ONLY 1 single copy of each on your entire HDD. They just don't seem to stress that enough, it appears. Kind of an oversight for them to not emphasize that, IMO...
My recommendation for this particular September 2012 "004" update:
If you run Software Update, and if you see the "Security Update 2012-004" listed as available for download, UNCHECKMARK IT. DO NOT DOWNLOAD IT USING SOFTWARE UPDATE ! Instead, download the actual update file itself.
Same thing, only a different way of doing it. Most importantly, you'll be skipping the auto-installation that Software Update performs.
AND you'll have that update file on your HDD for future fixits, should a nasty "unfixable" problem come up.
First, #1. Do a filename search for "Mail" (Option-Command-Spacebar). Scroll down to where the "Apps" are located in the list under the "Kind" column heading. First, find your Mail.app that's v4.5. Get that bugger into your Applications folder if it's not already there. Next, Trash all other "Mail.app" apps you see in that same list that you may have elsewhere on your HDD.
#2. Go here: https://support.apple.com/kb/DL1586
And download the actual "004" DMG update file: "SecUpd2012-004.dmg"
And of course, it's a biggie.... 270MB... so watching grass grow may be involved here if you've got a slow connection (go to a MacDonalds & do it, like I shoulda done).
3. After downloading, I'd recommend closing down all apps, emptying the Trash, and restarting.
Then, after restarting, run Disk Utility's "Repair Disk Permissions."
Then, doublecheck that the Mail.app version 4.5 is in your Applications folder.
THEN fire up & install "SecUpd2012-004.dmg."
Reboot.
After the reboot, your Mail.app version 4.5 in the Applications folder will have become Mail.app version 4.6 in the Applications folder, and all will be well again.
And you can dump that zipped-up "Username -> Library -> Mail" folder then, too.
Happy Mac'in!
Kevin Kendall
Macbook 7,1
(Apple's very last all-white Macbook model)
2.4GHz - 256GB Crucial SSD - 8GB Crucial RAM
OS 10.6.8 Build 10K549 + Win 7 Ultimate thru VMWare Fusion v5.0.1

How do I install OSX onto a new SSD (in the place of my optical drive) without transferring all data across. However, with the applications, system and library on the SSD to improve the speed, but keep non essential items (the home folder) on the HDD

I have a mid 2009 13 inch unibody 2.53GHz MacBook Pro. I'm finding that it doesn't run as quickly as it used to.
A genius in the Apple store suggested that I replace my optical drive with an SSD, however only use the SSD for OSX, applications, system and library. Keep all documents, pictures, music etc on the current hard drive.
I would be grateful if someone could help me with:
1) installing OSX on the SSD without copying across data from the current hard drive
2) transferring applications, system and library folders across to the SSD so that they still function
3) changing my settings so that OSX reads the home folder from the current hard drive, as well as all the applications' data (documents, music etc...)
However, I would like to run iMovie, with all events etc solely from the SSD to speed up the process of editing movies.
If anyone could help with this, it would be much appreciated.

If you got the data transfer cable with your SSD, the procedure should be pretty simple - and there should be step-by-step instructions in the box. You're simply going to remove the bottom case of your computer (using a Phillips #00 screwdriver), take out the two screws in the bracket holding the hard drive into place (using same screwdriver), remove the drive and (use a Torx 6 screwdriver) remove the four screws that hold the hard drive in place. Then put in the SSD and reassemble the machine.
Then you'll plug up the old hard drive by using the SATA to USB cable and use the option key to boot from the old drive. I don't know what data transfer software Crucial provides, but I would recommend formatting the SSD using Disk Utility from your old drive ("Mac OS Extended (Journaled)" with a single GUID partition) and then use Carbon Copy Cloner to clone your old drive to your new SSD (see this user tip for cloning - https://discussions.apple.com/docs/DOC-4122). You needn't worry about getting an enclosure since you have the data transfer cable and you don't want to use your old hard drive.
There are a number of videos on YouTube that take you step-by-step through this procedure - many specific to Crucial SSDs and their data transfer kit - do a little searching there if you're unsure of how to procede.
Clinton

Hi all crucial pz

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