Best Practice for DS6.2 disk usage

Hi:
We are installing DS6.2 on Windows 2003 SP1 configured with a 10gb OS drive and a 50gb data drive. Both are connected to EMC SAN but are not the same LUN, the data drive is higher end disk. Our initial idea was to install DS on the OS drive and the place the directory instances and the logs on the data drive. After mulling it over it may seem this is not the best practice. Does anyone have any knowledge of the best use of disk or know of any best practice documentation?
Thanks for your help!
Mike

Those numbers indicate that your application is in fact doing
something. Perhaps you have a timer still running, or work being
done on an enterFrame event?

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JSF - Best Practice For Using Managed Bean

I want to discuss what is the best practice for managed bean usage, especially using session scope or request scope to build database driven pages
---- Session Bean ----
- In the book Core Java Server Faces, the author mentioned that most of the cases session bean should be used, unless the processing is passed on to other handler. Since JSF can store the state on client side, i think storing everything in session is not a big memory concern. (can some expert confirm this is true?) Session objects are easy to manage and states can be shared across the pages. It can make programming easy.
In the case of a page binded to a resultset, the bean usually helds a java.util.List object for the result, which is intialized in the constructor by query the database first. However, this approach has a problem: when user navigates to other page and comes back, the data is not refreshed. You can of course solve the problem by issuing query everytime in your getXXX method. But you need to be very careful that you don't bind this XXX property too many times. In the case of querying in getXXX, setXXX is also tricky as you don't have a member to set. You usually don't want to persist the resultset changes in the setXXX as the changes may not be final, in stead, you want to handle in the actionlistener (like a save(actionevent)).
I would glad to see your thought on this.
--- Request Bean ---
request bean is initialized everytime a reuqest is made. It sometimes drove me nuts because JSF seems not to be every consistent in updating model values. Suppose you have a page showing parent-children a list of records from database, and you also allow user to change directly on the children. if I hbind the parent to a bean called #{Parent} and you bind the children to ADF table (value="#{Parent.children}" var="rowValue". If I set Parent as a request scope, the setChildren method is never called when I submit the form. Not sure if this is just for ADF or it is JSF problem. But if you change the bean to session scope, everything works fine.
I believe JSF doesn't update the bindings for all component attributes. It only update the input component value binding. Some one please verify this is true.
In many cases, i found request bean is very hard to work with if there are lots of updates. (I have lots of trouble with update the binding value for rendered attributes).
However, request bean is working fine for read only pages and simple binded forms. It definitely frees up memory quicker than session bean.
----- any comments or opinions are welcome!!! ------

I think it should be either Option 2 or Option 3.
Option 2 would be necessary if the bean data depends on some request parameters.
(Example: Getting customer bean for a particular customer id)
Otherwise Option 3 seems the reasonable approach.
But, I am also pondering on this issue. The above are just my initial thoughts.

Best practice for partitioning 300 GB disk

Hi,
I would like to seek for advise on how I should partition a 300 GB disk on Solaris 8.x, what would be the optimal size for each of the partition.
The system will be used internally for running web/application servers and database servers.
Thanks in advance for your help.

There is no "best practice" regardles of what others might say. I depends entirely on how you plan on using and maintaining the system. I have run into too many situations where fine-grained file system sizing bit the admins in the backside. For example, I've run into some that assumed that /var is only going to be for logging and printing, so they made it nice and small. What they didn't realize is that patch and package information is also stored in /var. So, when they attempted to install the R&S cluster, they couldn't because they couldn't put the patch info into /var.
I've also run into other problems where a temp/export system that was mounted on a root-level directory. They made the assumption that "Oh, well, it's root. It can be tiny since /usr and /opt have their own partitions." The file system didn't mount properly, so any scratch files in that directory that were created went to the root file system and filled it up.
You can never have a file system that's too big, but you can always have a file system that's too small.
I will recommend the following, however:
* /var is the most volatile directory and should be on its own several GB partition to account for patches, packages, and logs.
* You should have another partition as big as your system RAM and assign that parition as a system/core dump for system crashes.
* /usr or whatever file system it's on must be big enough to assume that it will be loaded with FOSS/Sunfreeware tools, even if at this point you have no plans on installing them. I try to make mine 5-6 GB or more.
* If this is a single-disk system, do not use any kind of parallel access structure, like what Oracle prefers, as it will most likely degrade system performance. Single disks can only make single I/O calls, obviously.
Again, there is no "best practice" for this. It's all based on what you plan on doing with it, what applications you plan on using, and how you plan on using it. There is nothing that anyone here can tell you that will be 100% applicable to your situation.

Best practice for CPU and memory usage?

I find my AIR application takes a lot of memory -- usually
>170M. And what is strange is that the memory usage is
increasing (about 4K/s) even when the application is simply sitting
there and do nothing. The CPU usage is supposed to be 0% when the
application is doing nothing, but it's not (usually ~5%). So I
wonder if there is any article about best practice on CPU/Memory
usage.

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Best Practices for Using Photoshop (and Computing in General)

I've been seeing some threads that lead me to realize that not everyone knows the best practices for doing Photoshop on a computer, and in doing conscientious computing in general. I thought it might be a good idea for those of us with some exprience to contribute and discuss best practices for making the Photoshop and computing experience more reliable and enjoyable.
It'd be great if everyone would contribute their ideas, and especially their personal experience.
Here are some of my thoughts on data integrity (this shouldn't be the only subject of this thread):
Consider paying more for good hardware. Computers have almost become commodities, and price shopping abounds, but there are some areas where spending a few dollars more can be beneficial. For example, the difference in price between a top-of-the-line high performance enterprise class hard drive and the cheapest model around with, say, a 1 TB capacity is less than a hundred bucks! Disk drives do fail! They're not all created equal. What would it cost you in aggravation and time to lose your data? Imagine it happening at the worst possible time, because that's exactly when failures occur.
Use an Uninterruptable Power Supply (UPS). Unexpected power outages are TERRIBLE for both computer software and hardware. Lost files and burned out hardware are a possibility. A UPS that will power the computer and monitor can be found at the local high tech store and doesn't cost much. The modern ones will even communicate with the computer via USB to perform an orderly shutdown if the power failure goes on too long for the batteries to keep going. Again, how much is it worth to you to have a computer outage and loss of data?
Work locally, copy files elsewhere. Photoshop likes to be run on files on the local hard drive(s). If you are working in an environment where you have networking, rather than opening a file right off the network, then saving it back there, consider copying the file to your local hard drive then working on it there. This way an unexpected network outage or error won't cause you to lose work.
Never save over your original files. You may have a library of original images you have captured with your camera or created. Sometimes these are in formats that can be re-saved. If you're going to work on one of those files (e.g., to prepare it for some use, such as printing), and it's a file type that can be overwritten (e.g., JPEG), as soon as you open the file save the document in another location, e.g., in Photoshop .psd format.
Save your master files in several places. While you are working in Photoshop, especially if you've done a lot of work on one document, remember to save your work regularly, and you may want to save it in several different places (or copy the file after you have saved it to a backup folder, or save it in a version management system). Things can go wrong and it's nice to be able to go back to a prior saved version without losing too much work.
Make Backups. Back up your computer files, including your Photoshop work, ideally to external media. Windows now ships with a quite good backup system, and external USB drives with surprisingly high capacity (e.g., Western Digital MyBook) are very inexpensive. The external drives aren't that fast, but a backup you've set up to run late at night can finish by morning, and if/when you have a failure or loss of data. And if you're really concerned with backup integrity, you can unplug an external drive and take it to another location.
This stuff is kind of "motherhood and apple pie" but it's worth getting the word out I think.
Your ideas?
-Noel

APC Back-UPS XS 1300. $169.99 at Best Buy.
Our power outages here are usually only a few seconds; this should give my server about 20 or 25 minutes run-time.
I'm setting up the PowerChute software now to shut down the computer when 5 minutes of power is left. The load with the monitor sleeping is 171 watts.
This has surge protection and other nice features as well.
-Noel

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.

(Request for:) Best practices for setting up a new Windows Server 2012 r2 Hyper-V Virtualized AD DC

Could you please share your best practices for setting up a new Windows Server 2012 r2 Hyper-V Virtualized AD DC, that will be running on a new WinSrv 2012 r2 host server. (This
will be for a brand new network setup, new forest, domain, etc.)
Specifically, your best practices regarding:
the sizing of non virtual and virtual volumes/partitions/drives,
the use of sysvol, logs, & data volumes/drives on hosts & guests,
RAID levels for the host and the guest(s),
IDE vs SCSI and drivers both non virtual and virtual and the booting there of,
disk caching settings on both host and guests.
Thanks so much for any information you can share.

A bit of non essential additional info:
We are small to midrange school district who, after close to 20 years on Novell networks, have decided to design and create a new Microsoft network and migrate all of our data and services
over to the new infrastructure . We are planning on rolling out 2012 r2 servers with as much Hyper-v virtualization as possible.
During the last few weeks we have been able to find most of the information we need to undergo this project, and most of the information was pretty solid with little ambiguity, except for
information regarding virtualizing the DCs, which as been a bit inconsistent.
Yes, we have read all the documents that most of these posts tend point to, but found some, if not most are still are referring to performing this under Srvr 2008 r2, and haven’t really
seen all that much on Srvr2012 r2.
We have read these and others:
Introduction to Active Directory Domain Services (AD DS) Virtualization (Level 100),
Virtualized Domain Controller Technical Reference (Level 300),
Virtualized Domain Controller Cloning Test Guidance for Application Vendors,
Support for using Hyper-V Replica for virtualized domain controllers.
Again, thanks for any information, best practices, cookie cutter or otherwise that you can share.
Chas.

Best Practice for a Print Server

What is the best practice for having a print server serving over 25 printers 10 of which are colour lasers and the rest black and white lasers.
Hardware
At the moment we have one server 2Ghz Dual G5 with 4GB Ram and xserve RAID. The server is also our main Open directory server, with about 400+ clients.
I want to order a new server and want to know the best type of setup for the optimal print server.
Thanks

Since print servers need RAM and spool space, but not a lot of processing power, I'd go with a Mac Mini packed with ram and the biggest HD you can get into it. Then load a copy of Xserver Tiger on it and configure your print server there.
Another option, if you don't mind used equipment, is to pick up an old G4 or G5 Xserve, load it up with RAM and disk space, and put tiger on that.
Good luck!
-Gregg

Best practice for hierarchical DTOs?

Hi!
Can someone tell me the best practice for hierarchical DTOs?
Use case: I've got a User object which holds one Folder object, which in turn holds a Set of Folder objects (children).
class User {
Folder rootFolder;
class Folder {
Set children;
}Normally, I'd fetch the user data with the help of a DAO from the database, copy the requested properties into a User-DTO, which will be transfered to the view. But what about the Folder objects?
Should I create a Folder-DTO class and copy each Folder property into the respective DTO object - in other words: rebuild the whole hierarchy? Or is there a better solution?
Thanks a lot!
Walter

Normally, I'd fetch the user data with the help of a
DAO from the database, copy the requested properties
into a User-DTO, which will be transfered to the view.
But what about the Folder objects?
Should I create a Folder-DTO class and copy each
Folder property into the respective DTO object - in
other words: rebuild the whole hierarchy? Or is there
a better solution?It isn't recursive right?
So this is just a standard association.
How you handle it depends on usage.
As a guess perhaps you are thinking that you can only have one User DTO class. That isn't true. You can have several. For example one that contains the association and one that does not.
Or you have just one. And either it contains the association or you provide another mechanism that returns just the association given a specific instance of a User DTO (or some other identifier to the specific User.)

Best practice for use of spatial operators

Hi All,
I'm trying to build a .NET toolkit to interact with Oracles spatial operators. The most common use of this toolkit will be to find results which are within a given geometry - for example select parish boundaries within a county.
Our boundary data is high detail, commonly containing upwards of 50'000 vertices for a county sized polygon.
I've currently been experimenting with queries such as:
select
from
uk_ward a,
uk_county b
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sdo_relate(a.geoloc, b.geoloc, 'mask=coveredby+inside') = 'TRUE';
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Any comments or thoughts on the best practice for use of Oracle spatial in this way will be warmly welcomed. I'm looking for a solution which is as quick and efficient as possible.

Thanks again for the reply... the query currently takes just under 90 seconds to return. Here are the results from the execution plan ran in sql*:
Elapsed: 00:01:24.81
Execution Plan
Plan hash value: 598052089
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 156 | 46956 | 76 (0)| 00:00:01 |
| 1 | NESTED LOOPS | | 156 | 46956 | 76 (0)| 00:00:01 |
|* 2 | TABLE ACCESS FULL | UK_COUNTY | 2 | 262 | 5 (0)| 00:00:01 |
| 3 | TABLE ACCESS BY INDEX ROWID| UK_WARD | 75 | 12750 | 76 (0)| 00:00:01 |
|* 4 | DOMAIN INDEX | UK_WARD_SX | | | | |
Predicate Information (identified by operation id):
2 - filter(UPPER("B"."NAME")='DORSET COUNTY')
4 - access("MDSYS"."SDO_INT2_RELATE"("A"."GEOLOC","B"."GEOLOC",'mask=coveredby+i
nside')='TRUE')
Statistics
20431 recursive calls
60 db block gets
22432 consistent gets
1156 physical reads
0 redo size
2998369 bytes sent via SQL*Net to client
1158 bytes received via SQL*Net from client
17 SQL*Net roundtrips to/from client
452 sorts (memory)
0 sorts (disk)
125 rows processed
The wards table has 7545 rows, the county table has 207.
We are currently on release 10.2.0.3.
All i want to do with this is generate results which fall in a particular geometry. Most of my testing has been successful i just seem to run into issues when querying against a county sized polygon - i guess due to the amount of vertices.
Also looking through the forums now for tuning topics...

What is best practice for dealing with Engineering Spare Parts?

Hello All,
I am after some advice regarding the process for handling engineering spare parts in PM. (We run ECC 5)
Our current process is as follows:
All materials are set up as HIBE's
Each material is batch managed
The Batch field is used for the Bin location
We are now looking to role out PM to a site that has in excess of 50,000 spare parts and want to make sure we use best practice for handling the spare parts. We are now considering using a basic WM setup to handle the movement of parts.
Please can you provide me with some feedback on what you feel the best practice is for dealing with these parts?
We are looking to set up a solution that will us to generate pick lists etc and implment a scanning solution to move parts in and out of stores.
Regards
Chris

Hi,
I hope all the 50000 spare parts are maintained as stock items.
1. Based on the usage of those spare parts, try to define safety stock & define MRP as "Reorder Point Planning". By this, you can avoid petty cash purchase.
2. By keeping the spare parts (atleast critical components) in stock, Planned Maintenance as well as unplanned maintenance will not get delayed.
3. By doing GI based on reservation, qty can be tracked against the order & equipment.
As this question is MM & WM related, they can give better clarity on this.
Regards,
Maheswaran.

ASM on SAN datafile size best practice for performance?

Is their a 'Best Practice' for datafile size for performance?
In our current production, we have 25GB datafiles for all of our tablespaces in ASM on 10GR1, but was wondering what the difference would be if I used say 50GB datafiles? Is 25GB a kind of mid point so the data can be striped across multiple datafiles for better performance?

We will be using Redhat Linux AS 4 update u on 64-bit AMD Opterons. The complete database will be on ASM...not the binarys though. All of our datafiles we have currently in our production system are all 25GB files. We will be using RMAN-->Veritas Tape backup and RMAN-->disk backup. I just didn't know if anybody out there was using smallfile tablespaces using 50GB datafiles or not. I can see that one of our tablespaces will prob be close to 4TB.

Best Practice for Production IDM setup

Hi, what is the best practice for setting up prodcution IDM:
1. Connect IDM prod to ECC DEV,QA and Prod or
2. Connect IDM prod to ECC prod only and Connect IDM dev to ECC Dev and QA.
Please also specify pros and cons for both options if possible.
Thanks in advance,
Farhan

We run our IDM installation as per your option 2 (Prod and non-prod on separate instances)
We use HCM for the source of truth in production and have a strict policy regarding not allowing non HCM based user accounts. HCM creates the SU01 record and details are downloaded to IDM through the LDAP extract. Access is provision based on Roles attached to the HCM Position in IDM. In Dev/test/uat we create user logins in IDM and push the details out.
Our thinking was that we definitely needed a testing environment for development and patch testing, and it needs to be separate to production. It was also ideal to use this second environment for dev/test/uat since we are in the middle of a major SAP project rollout and are creating hundreds of test and training users with various roles and prefer to keep this out of a production instance.
Lately we also created a sandpit environment since I found that I could not do destructive testing or development in the dev/test/uat instance because we were becoming reliant on this environment being available. Almost a second production instance - since we also set the policy that all changes are made through IDM and no direct SU01 changes are permitted.
Have a close look at your usage requirements before deciding which structure works best for you.

Best Practices for AP Power

Can someone tell me or explain to me if there are best practices for AP Power based on data or voice networks? Specifically, if you're tasked to do a Wireless Site Survey with the intention that RRM will not be used how would you configure the APs power for data usage only or voice and data.
I have never read anything that states a best practice for power ... I tend to set APs at 6 or 12 mW for 2.4GHz and 12mW or 25mW for 5GHz ... but there isn't anything to state whether my practice meet any type of best practice so I'm just looking for any supporting facts or idea of what other Wireless Engineers use when they do site surveys.
Any information or shared thoughts are much appreciated!!!
Thanks,
Mal

Hello Mal,
Your question will cause a number of responses from the different RF chefs here, Im sure!
Ive been in WiFi for a long time. When I sit down with educated customers they will ask the same question. Based on my experience designing high availability, data intensive networks I follow the practice to design for the "lowest" common denominator.
With this being said, its often a 5 GHz Phone device or even a 2.4 GHz Vocera badge. In any case, both devices live in or around 20mW. I like to design my networks at 12.5mW. I find this works better for RRM and also builds in fluff incase I need to adjust power on a AP.
If a customer requires both a 2.4GHz and 5 GHz design. I will just design 5 GHz @ 12.5 mW, as the 2.4 GHz network will surly fit inside of the 5 GHz design.
I hope this helps...

What is the best practice for creating master pages and styles with translated text?

I format translated text all the time for my company. I want to create a set of master pages and styles for each language and then import those styles into future translated documents. That way, the formatting can be done quickly and easily.
What are the best practices for doing this? As a company this has been tried in the past, but without success. I'd like to know what other people are doing in this regard.
Thank you!

I create a master template that is usually void of content, with the exception I define as many of the paragraph styles I believe can/will be used with examples of their use in the body of the document--a style guide for that client. When beginning a new document for that client, I import those styles from the paragraph styles panel.
Exception to this is when in a rush I begin documentation first, then begin new work. Then in the new work, I still pull in those defined paragraph and or object styles via their panels into the new work.
There are times I need new styles. If they have broader applicability than a one-off instance or publication, then I open the style template for that client and import that style(s) from the publication containing the new style(s) and create example paragraphs and usage instructions.
Take care, Mike

Best Practice for DS6.2 disk usage

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