Karthikeyan, An easy thing to do is to look at the performance tab of Task Manager during a time of heavy usage. There you will get an idea of how the cpu load is distributed, and what your memory utilization looks like. It's just a snapshot in time, but it's a good place to start. If you want more data, you can use Perfmon.
The next thing you should do is determine where your pagefile is located on physical drives. Ideally it should be local (not on a SAN drive) and should not exist on the same physical drive as the operating system. An exception to this could be if you have raid on the local disk. Next look at the size and settings of the pagefile. You may want to play with this setting a little to find out how it behaves in your environment. One setting to test is to reduce the pagefile size to something small enough that it is just big enough to hold dumps created when something goes wrong. Set this to be static. That is, the maximum and minimum size for the pagefile are the same number. If the pagefile was originally set to be dynamic (different maximum or minimum sizes), you may want to first delete the pagefile, reboot, and defrag before creating the new static pagefile. This could potentially assist in making the pagefile more contiguous on disk. After each modification, check performance in Task Manager during the same period of heavy usage and see if the sustained memory utilization has increased with the modified pagefile parameters. I've included an excerpt from the Windows 2003 Server help. Some of the information agrees with what I wrote above, and some may appear to contradict. My recommendations are based on various experiences in my environment. As always, "Your mileage may vary". Only testing will reveal what is best in your environment. Good luck, Kent Eagle MTS Infrastructure Engineer II, MCP, MCSE Tech Services / SMSS "Managing computer memory When your computer is running low on RAM and more is needed immediately, Windows uses hard drive space to simulate system RAM. This is known as virtual memory, and is often called the paging file. The paging file is similar to the UNIX swapfile. The default size of the virtual memory page file (named pagefile.sys) created during installation is 1.5 times the amount of RAM on your computer. You can optimize virtual memory use by dividing the space between multiple drives and removing it from slower or heavily accessed drives. To best optimize your virtual memory space, divide it among as many physical hard drives as possible. When selecting drives, keep the following guidelines in mind: Try to avoid having a page file on the same drive as the system files. Avoid putting a page file on a fault-tolerant drive, such as a mirrored volume or a RAID-5 volume. Page files do not need fault-tolerance, and some fault-tolerant systems suffer from slow data writes because they write data to multiple locations. Do not place multipage filesiles on different partitions on the same physical disk drive. You can choose to optimize your computer's memory usage. If you use your computer primarily as a workstation, rather than as a server, you can devote more memory to your programs. Your programs will work faster and your system cache size will be the default size that came with Windows. If your computer is used primarily as a server, or if you use programs that require a larger cache, you can choose to set aside more computer memory for a larger system cache." ------------------------------------------------------------------------ ---------------------------- Message: 10 Date: Fri, 17 Jul 2009 13:41:52 +0530 From: <[email protected]> Subject: Re: [Veritas-bu] Which is Best for My NetBackup Master - 32 or 64 Bit Operating System ? To: <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset="us-ascii" Hello there, Thanks a lot for your response guys ! My master is running in Windows 2003 32 bit operating system with 8 GB RAM. Is my master utilizing this full 8GB of RAM ? if not how can I make my master to go ahead and use 8 GB of RAM. How can know how much memory my master utilizing ? Thanks, Karthikeyan Sundaram. Visit our website at www.wilmingtontrust.com Investment products are not insured by the FDIC or any other governmental agency, are not deposits of or other obligations of or guaranteed by Wilmington Trust or any other bank or entity, and are subject to risks, including a possible loss of the principal amount invested. This e-mail and any files transmitted with it may contain confidential and/or proprietary information. It is intended solely for the use of the individual or entity who is the intended recipient. Unauthorized use of this information is prohibited. If you have received this in error, please contact the sender by replying to this message and delete this material from any system it may be on. _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
