Best practice for SSD & HDD

Hi,
I recently acquired a 2011 iMac with 256gb ssd and an internal 1tb HD.
When I migrated my data I decided to keep my media files on the HDD; Movies, Pictures and Music, and use symlinks to link to them.
However, I'm bumping into an issue when I want to move things to those folders. Normal behaviour when moving a file to another drive (internal or external) is to copy the file. I know that holding the command key will force a move process but this is a bit fiddly.
Just wondering what do other users do in this situation? Do you need to change your behaviour?
Thanks

Link,
I thought that there was a new file management system along with the Fusion Drives.
I installed a 240GB SSD Mercury Elite 6g into a late 2012 MacMini 2.66GHZ with16GB RAM. After much frustration of trying to get the drives to be seen properly in Recovery Mode I used Internet Recovery Disk Utility and allowed DU to "fix" both drives. I then got a message saying a new "Logical Drive" had been created and DU saw the drive properly.
In the OS (not recovery) DU the drives were seen as discrete drives and they seemed to respond to operations normally however when I made an iMovie project I got an "unexpected error" and the project didn't save. That is what prompted me to use Recovery to do a Repair Disk where the problem of a "broken fusion drive" was reported by RDU. At first I just tried repairing the drives from Recovery but the folks on telephone support asked me to try Internet Recovery. Didn't really want the Fusion setup but that is the only way the OS would allow the drives to coexist.

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[solved] Best Practice for SSDs with crypto on it regarding TRIM

Hi,
I was doing some research on this matter but did not find too much information on that that's more useful than confusing.
The setup is the following: I have an SSD (Crucial, Marvell-Controller) with two partitions: a small one for /boot and a bigger one for the rest, which is a LUKS-Container. I left some unpartitioned space at the end of the SSD. I'd like to *not* enable TRIM on the LUKS-device for security purposes.
I was wondering now:
I read that TRIM does reduce the write amplification of garbage collection. But shouldn't the garbage collection do not write at all, but just erase cells with no information on it?
If TRIM helps keeping up performance: do I need to explicitly trim the unpartitioned space? Or does this area behave like the spare area?
If TRIM of the unpartitioned space is necessary: what's the most elegant way to do so?
If someone could shed a little light on this matter, that would help a lot and would be greatly appreciated.
Last edited by Ovion (2015-03-09 19:20:13)

I have the same setup. Crucial SSD, LUKS, TRIM (cron.weekly fstrim). A full hexdump (minus gigabytes of random data) looks like this: https://bpaste.net/raw/505157 (tell me about it)
There is no issue with security. At least, none I care about. So the attacker can see how much free space there is [and where]. The where part is important since lots of small files give a different picture [lots of small free spaces in between] than a single very large file would [no free space in between], assuming there is no fragmentation worth mentioning [which Linux filesystems are usually good at]. So an attacker could probably make some guesses about your amount of data and file sizes. On the other hand I don't see how that's important, in ecryptfs you get this kind of info for free, and I have all sorts of files in all sorts of sizes either way, so it's not a big secret.
The question is, when all it takes to crack your encryption setup is a keylogger or a $5 encryption wrench, does it really matter?
Don't use TRIM on your SSD if you don't want to (there are lots of reasons not to TRIM... like better data recovery chances if you delete something by accident). But don't fool yourself thinking it's somehow really important for your security...
As for unpartitioned space, if it ever was in use before, you need to trim it once. Create a partition on it, then blkdiscard the partition, then delete the partition. That way it's good until it's "in use" again because you dd all over it or had it resynced in a RAID.
Apart from that, TRIM does all the things you said (reduce write amplification, performance, etc. etc.) but it's not like the SSD can't take it if you're not writing 24/7 because it's a database server burning up or something.
Last edited by frostschutz (2015-03-09 19:19:16)

Best Practice for Recording to HDD's.

I want some answers from some people who have been using Logic for a while and have experience in this topic. I have a 2010 MBP 13" with 1 Firewire 800 port, after looking for a cheap quality interface i purchased a Saffire Pro 14 which has a Firewire 6pin interface and i assume is Firewire 400mbps. The interface also doesn't have an extra Firewire port and the manual says not to "daisy-chain" becuase of latency and CPU spikes. Honestly i haven't noticed any problems with my HDD I/O in Logic, when i skip around it peaks but never any errors. I formatted an old 160GB Sata 1 drive and hooked it up over USB, i noticed that when i "skip" arround or w/e its called it doesn't peak (get red) anymore. I want to know peoples experience with Daisy chaining firewire devices, and using USB HDD's.
When i invest more money, would it be ok to stick with my interface for now and get a Glyph drive and daisy chain my interface on at the end? Should i stick with USB storage? Should i stick with internal 5400RPM drive? Should i upgrade it to a 7200RPM ( my original idea). In I.T. we call it best practices, whats the best practice for storing your audio/logic files on a Mac when running Logic.

Please don't just tell me Firewire is faster than USB.....I'm an I.T. Proffesional (wishing i went to school for recording ) I know how comptuers work, i build them and fix them all day. I want to know from peoples personal experience what they run and their suggestions. Thanks so much!

Advice on best use of SSD &HDD?

Hi - purchased a 27" iMac a month ago - very happy with it - speed, screen et al all good - and it doesnt overheat.
But, has anyone out there, designers, artists et al, worked out best practice for using SSD and HDD? I use primarily adobe packages - large files et al, need those to operate quickly. The 256 SSD is just about full of my home files. I Have pointed photoshop scratch to HDD, inDesign and illustrator are also process heavy and i use them most. BUT - how well would it work if I just transferred my home folder to the HDD and left the programmes running from SSD?
any thoughts or advice?
I'm not a unix whizz, or a coder but pretty familiar with macs - have been using since early 90's.
please let me know what you use - most appreciated
cheers -
telk

Link,
I thought that there was a new file management system along with the Fusion Drives.
I installed a 240GB SSD Mercury Elite 6g into a late 2012 MacMini 2.66GHZ with16GB RAM. After much frustration of trying to get the drives to be seen properly in Recovery Mode I used Internet Recovery Disk Utility and allowed DU to "fix" both drives. I then got a message saying a new "Logical Drive" had been created and DU saw the drive properly.
In the OS (not recovery) DU the drives were seen as discrete drives and they seemed to respond to operations normally however when I made an iMovie project I got an "unexpected error" and the project didn't save. That is what prompted me to use Recovery to do a Repair Disk where the problem of a "broken fusion drive" was reported by RDU. At first I just tried repairing the drives from Recovery but the folks on telephone support asked me to try Internet Recovery. Didn't really want the Fusion setup but that is the only way the OS would allow the drives to coexist.

Best Practices for new iMac

I posted a few days ago re failing HDD on mid-2007 iMac. Long story short, took it into Apple store, Genius worked on it for 45 mins before decreeing it in need of new HDD. After considering the expenses of adding memory, new drive, hardware and installation costs, I got a brand new iMac entry level (21.5" screen,
2.7 GHz Intel Core i5, 8 GB 1600 MHz DDR3 memory, 1TB HDD running Mavericks). Also got a Superdrive. I am not needing to migrate anything from the old iMac.
I was surprised that a physical disc for the OS was not included. So I am looking for any Best Practices for setting up this iMac, specifically in the area of backup and recovery. Do I need to make a boot DVD? Would that be in addition to making a Time Machine full backup (using external G-drive)? I have searched this community and the Help topics on Apple Support and have not found any "checklist" of recommended actions. I realize the value of everyone's time, so any feedback is very appreciated.

OS X has not been officially issued on physical media since OS X 10.6 (arguably 10.7 was issued on some USB drives, but this was a non-standard approach for purchasing and installing it).
To reinstall the OS, your system comes with a recovery partition that can be booted to by holding the Command-R keys immediately after hearing the boot chimes sound. This partition boots to the OS X tools window, where you can select options to restore from backup or reinstall the OS. If you choose the option to reinstall, then the OS installation files will be downloaded from Apple's servers.
If for some reason your entire hard drive is damaged and even the recovery partition is not accessible, then your system supports the ability to use Internet Recovery, which is the same thing except instead of accessing the recovery boot drive from your hard drive, the system will download it as a disk image (again from Apple's servers) and then boot from that image.
Both of these options will require you have broadband internet access, as you will ultimately need to download several gigabytes of installation data to proceed with the reinstallation.
There are some options available for creating your own boot and installation DVD or external hard drive, but for most intents and purposes this is not necessary.
The only "checklist" option I would recommend for anyone with a new Mac system, is to get a 1TB external drive (or a drive that is at least as big as your internal boot drive) and set it up as a Time Machine backup. This will ensure you have a fully restorable backup of your entire system, which you can access via the recovery partition for restoring if needed, or for migrating data to a fresh OS installation.

Best practices for setting up users on a small office network?

Hello,
I am setting up a small office and am wondering what the best practices/steps are to setup/manage the admin, user logins and sharing privileges for the below setup:
Users: 5 users on new iMacs (x3) and upgraded G4s (x2)
Video Editing Suite: Want to connect a new iMac and a Mac Pro, on an open login (multiple users)
All machines are to be able to connect to the network, peripherals and external hard drive. Also, I would like to setup drop boxes as well to easily share files between the computers (I was thinking of using the external harddrive for this).
Thank you,

Hi,
Thanks for your posting.
When you install AD DS in the hub or staging site, disconnect the installed domain controller, and then ship the computer to the remote site, you are disconnecting a viable domain controller from the replication topology.
For more and detail information, please refer to:
Best Practices for Adding Domain Controllers in Remote Sites
http://technet.microsoft.com/en-us/library/cc794962(v=ws.10).aspx
Regards.
Vivian Wang

Best-practice for Catalog Views ? :|

Hello community,
A best practice question:
The situtation: I have several product categories (110), several items in those categories (4000) and 300 end-users. I would like to know which is the best practice for segment the catalog. I mean, some users should only see categories 10,20 & 30. Other users only category 80, etc. The problem is how can I implement this ?
My first idea is:
1. Create 110 Procurement Catalogs (1 for every prod.category). Each catalog should contain only its product category.
2. Assign in my Org Model, in a user-level all the "catalogs" that the user should access.
Do you have any idea in order to improve this ?
Saludos desde Mexico,
Diego

Hi,
Your way of doing will work, but you'll get maintenance issues (to many catalogs, and catalog link to maintain for each user).
The other way is to built your views in CCM, and assign these views to the users, either on the roles (PFCG) or on the user (SU01). The problem is that with CCM 1.0 this is limitated, cause you'll have to assign one by one the items to each view (no dynamic or mass processes), it has been enhanced in CCM 2.0.
My advice:
-Challenge your customer about views, and try to limit the number of views, with for example strategic and non strategic
-With CCM 1.0 stick to the procurement catalogs, or implement BADIs to assign items to the views (I experienced it, it works, but is quite difficult), but with a limitated number of views
Good luck.
Vadim

Best Practice for Securing Web Services in the BPEL Workflow

What is the best practice for securing web services which are part of a larger service (a business process) and are defined through BPEL?
They are all deployed on the same oracle application server.
Defining agent for each?
Gateway for all?
BPEL security extension?
The top level service that is defined as business process is secure itself through OWSM and username and passwords, but what is the best practice for security establishment for each low level services?
Regards
Farbod

It doesnt matter whether the service is invoked as part of your larger process or not, if it is performing any business critical operation then it should be secured.
The idea of SOA / designing services is to have the services available so that it can be orchestrated as part of any other business process.
Today you may have secured your parent services and tomorrow you could come up with a new service which may use one of the existing lower level services.
If all the services are in one Application server you can make the configuration/development environment lot easier by securing them using the Gateway.
Typical probelm with any gateway architecture is that the service is available without any security enforcement when accessed directly.
You can enforce rules at your network layer to allow access to the App server only from Gateway.
When you have the liberty to use OWSM or any other WS-Security products, i would stay away from any extensions. Two things to consider
The next BPEL developer in your project may not be aware of Security extensions
Centralizing Security enforcement will make your development and security operations as loosely coupled and addresses scalability.
Thanks
Ram

Best practice for multi-language content in common areas

I've got a site with some text in header/footer/nav that needs to be translated between an English and Spanish site, which use the same design. My intention was to set up all the text as content to facilitate. However, if I use a standard dialog with the component's path set to a child of the current page node, I would need to re-enter the text on every page. If I use a design dialog, or a standard dialog with the component's path set absolutely, the Engilsh and Spanish sites will share the same text. If I use a standard dialog with the component's path set relatively (eg path="../../jcr:content/myPath"), the pages using the component would all need to be at the same level of the hierarchy.
It appears that the Geometrixx demo doesn't address this situation, and leaves copy in English. Is there a best practice for this scenario?

I'm finding that something to the effect of <cq:include path="<%= strCommonContentPath + "codeEntry" %>" resourceType ...
works fine for most components, but not for parsys, or a component containing a parsys. When I attempt that, I get a JS error that says "design.path is null or not an object". Is there a way around this?

Best Practice for utility in Sol Man 4.0

We have software component ST-ICO of release 150_700 with Patch level 5
We want a Template Selection for Utility industry. I checked in
the service market place and found that 'Baseline Package United
Kingdom V1.50, Template: BP_BLKU150' is available in the above software
component.
But we are not getting any templates other than 'BP_UTUS147 - Best Practices for Water Utility' in the 'SOLAR_PROJECT_ADMIN'
transaction.
Kindly suggest any patch needs to be applied or some configuration need to be done.
Regards
Mani

Hi Mani,
Colud u plz give me the link of "where u find the template BP_BLKU150"?
It will be helpful for me.
Thanks
Senthil

Best Practices for SRM Installation !!

Hi
can someone share the best Practices for SRM Installation ?
What is the typical timeframe to install SRM on development server and as well as on the Production server ?
Appericiate the responses
Thanks,
Arvind

Hi
I don't know whether this will help you.
See these links as well.
<b>http://help.sap.com/bp_epv170/EP_US/HTML/Portals_intro.htm
http://help.sap.com/bp_scmv150/index.htm
http://help.sap.com/bp_biv170/index.htm
http://help.sap.com/bp_crmv250/CRM_DE/index.htm</b>
Hope this will help.
Please reward suitable points.
Regards
- Atul

Best practices for ARM - please help!!!

Hi all,
Can you please help with any pointers / links to documents describing best practices for "who should be creating" the GRC request in below workflow of ARM in GRC 10.0??
Create GRC request -> role approver -> risk manager -> security team
options are : end user / Manager / Functional super users / security team.
End user and manager not possible- we can not train so many people. Functional team is refusing since its a lot of work. Please help me with pointers to any best practices documents.
Thanks!!!!

In this case, I recommend proposing that the department managers create GRC Access Requests. In order for the managers to comprehend the new process, you should create a separate "Role Catalog" that describes what abilities each role enables. This Role Catalog needs to be taught to the department Managers, and they need to fully understand what tcodes and abilities are inside of each role. From your workflow design, it looks like Role Owners should be brought into these workshops.
You might consider a Role Catalog that the manager could filter on and make selections from. For example, an AP manager could select "Accounts Payable" roles, and then choose from a smaller list of AP-related roles. You could map business functions or tasks to specific technical roles. The design flaw here, of course, is the way your technical roles have been designed.
The point being, GRC AC 10 is not business-user friendly, so using an intuitive "Role Catalog" really helps the managers understand which technical roles they should be selecting in GRC ARs. They can use this catalog to spit out a list of technical role names that they can then search for within the GRC Access Request.
At all costs, avoid having end-users create ARs. They usually select the wrong access, and the process then becomes very long and drawn out because the role owners or security stages need to mix and match the access after the fact. You should choose a Requestor who has the highest chance of requesting the correct access. This is usually the user's Manager, but you need to propose this solution in a way that won't scare off the manager - at the end of the day, they do NOT want to take on more work.
If you are using SAP HR, then you can attempt HR Triggers for New User Access Requests, which automatically fill out and submit the GRC AR upon a specific HR action (New Hire, or Termination). I do not recommend going down this path, however. It is very confusing, time consuming, and difficult to integrate properly.
Good luck!
-Ken

Best Practices For Household IOS's/Apple IDs

Greetings:
I've been searching support for best practices for sharing primarily apps, music and video among multple iOS's/Apple IDs. If there is a specific article please point me to it.
Here is my situation:
We currently have 3 iPads (2-kids, 1-dad) in the household and one iTunes account on a win computer. I previously had all iPads on single Apple ID/credit card and controlled the kids' downloads thru the Apple ID password that I kept secret. As the kids have grown older, I found myself constantly entering my password as the kids increased there interest in music/apps/video. I like this approach because all content was shared...I dislike because I was constantly asked to input password for all downloads.
So, I recently set up an individual account for them with the allowance feature at iTunes that allows them to download content on their own (I set restrictions on their iPads). Now I have 3 Apple IDs under one household.
My questions:
With the 3 Apple IDs, what is the best way to share apps,music, videos among myself and the kids? Is it multiple accounts on the computer and some sort of sharing?
Thanks in advance...

Hi Bonesaw1962,
We've had our staff and students run iOS updates OTA via Settings -> Software Update. In the past, we put a DNS block on Apple's update servers to prevent users from updating iOS (like last fall when iOS 7 was first released). By blocking mesu.apple com, the iPads weren't able to check for or install any iOS software updates. We waited until iOS 7.0.3 was released before we removed the block to mesu.apple.com at which point we told users if they wanted to update to iOS 7 they could do so OTA. We used our MDM to run reports periodically to see how many people updated to iOS 7 and how many stayed on iOS 6. As time went on, just about everyone updated on their own.
If you go this route (depending on the number of devices you have), you may want to take a look at Caching Server 2 to help with the network load https://www.apple.com/osx/server/features/#caching-server . From Apple's website, "When a user on your network downloads new software from Apple, a copy is automatically stored on your server. So the next time other users on your network update or download that same software, they actually access it from inside the network."
I wish there was a way for MDMs to manage iOS updates, but unfortunately Apple hasn't made this feature available to MDM providers. I've given this feedback to our Apple SE, but haven't heard if it is being considered or not. Keeping fingers crossed.
Hope this helps. Let us know what you decide on and keep us posted on the progress. Good luck!!
~Joe

Basic Strategy / Best Practices for System Monitoring with Solution Manager

I am very new to SAP and the Basis group at my company. I will be working on a project to identify the best practices of System and Service level monitoring using Solution Manager. I have read a good amount about SAP Solution Manager and the concept of monitoring but need to begin mapping out a monitoring strategy.
We currently utilize the RZ20 transaction and basic CCMS monitors such as watching for update errors, availability, short dumps, etc.. What else should be monitored in order to proactively find possible issues. Are there any best practices you all have found when implimenting Monitoring for new solutions added to the SAP landscape.... what are common things we would want to monitor over say ERP, CRM, SRM, etc?
Thanks in advance for any comments or suggestions!

Hi Mike,
Did you try the following link ?
If not, it may be useful to some extent:
http://service.sap.com/bestpractices
---> Cross-Industry Packages ---> Best Practices for Solution Management
You have quite a few documents there - those on BPM may also cover Solution Monitoring aspects.
Best regards,
Srini
Edited by: Srinivasan Radhakrishnan on Jul 7, 2008 7:02 PM

Best practice for integrating a 3 point metro-e in to our network.

Hello,
We have just started to integrate a new 3 point metro-e wan connection to our main school office. We are moving from point to point T-1?s to 10 MB metro-e. At the main office we have a 50 MB going out to 3 other sites at 10 MB each. For two of the remote sites we have purchase new routers ? which should be straight up configurations. We are having an issue connecting the main office with the 3rd site.
At the main office we have a Catalyst 4006 and at the 3rd site we are trying to connect to a catalyst 4503.
I have attached configurations from both the main office and 3rd remote site as well as a basic diagram of how everything physically connects. These configurations are not working ? we feel that it is a gateway type problem ? but have reached no great solutions. We have tried posting to a different forum ? but so far unable to find the a solution that helps.
The problem I am having is on the remote side. I can reach the remote catalyst from the main site, but I cannot reach the devices on the other side of the remote catalyst however the remote catalyst can see devices on it's side as well as devices at the main site.
We have also tried trunking the ports on both sides and using encapsulation dot10q ? but when we do this the 3rd site is able to pick up a DHCP address from the main office ? and we do not feel that is correct. But it works ? is this not causing a large broad cast domain?
If you have any questions or need further configuration data please let me know.
The previous connection was a T1 connection through a 2620 but this is not compatible with metro-e so we are trying to connect directly through the catalysts.
The other two connection points will be connecting through cisco routers that are compatible with metro-e so i don't think I'll have problems with those sites.
Any and all help is greatly welcome ? as this is our 1st metro e project and want to make sure we are following best practices for this type of integration.
Thank you in advance for your help.
Jeff

Jeff, form your config it seems you main site and remote site are not adjacent in eigrp.
Try adding a network statement for the 171.0 link and form a neighbourship between main and remote site for the L3 routing to work.
Upon this you should be able to reach the remote site hosts.
HTH-Cheers,
Swaroop

Best practice for SSD & HDD

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