If you get another drive a RAID 01 (or is it 10) would be a better choice in my eyes
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Wade Sent: Thursday, May 04, 2006 5:07 PM To: ActiveDir@mail.activedir.org Subject: RE: [ActiveDir] Optimize Exchange Pagefile If you have 4gig of RAM then you should get minimal paging. (I know this is a great generalization) 1) Log file access is sequential, database is random 2) Keeping Log files write queue down is key to performance 3) log files are write only 4) raid-5 tends to have poor write performance (again greate generalization). So I would try and get another drive in the box so I could have a mirrored pair for OS & LOGS, and a mirrored pair for Databases. . Putting these on seperate drives will do far more for performance than changing the page file. RAID-5 is a real bad performer on write. These days I woudl avoid as far as possible... I am sure other folks may disagree... -----Original Message----- From: [EMAIL PROTECTED] on behalf of Dan DeStefano Sent: Thu 04/05/2006 21:36 To: ActiveDir@mail.activedir.org Cc: Subject: RE: [ActiveDir] Optimize Exchange Pagefile Yes, far less than 100, on this box it is under 20. You do not think it is necessary to mess with the page file, even if only to make it static? Dan _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Wade Sent: Thursday, May 04, 2006 4:06 PM To: ActiveDir@mail.activedir.org Subject: RE: [ActiveDir] Optimize Exchange Pagefile There is no point in messing about with memory config if you only have a three drive RAID 5 array. Disk config is critical. How many users do you want to put on this box. less than 100? -----Original Message----- From: [EMAIL PROTECTED] on behalf of Dan DeStefano Sent: Thu 04/05/2006 20:16 To: ActiveDir@mail.activedir.org Cc: Subject: [ActiveDir] Optimize Exchange Pagefile I was wondering if anyone can point me to any MS document that discusses optimizing the page file on an Exchange box. I found http://support.microsoft.com/kb/815372, but this article does not discuss the page file. I am running SBS 2003 on a 3 GHZ Xeon with 4GB physical memory and a 3-disk RAID5 array with 2 logical drives. I plan on installing the Exchange binaries on the first logical drive (which will also contain the system and boot partitions) and the Exchange databases, logs, queues, etc on the second logical drive. The way I normally set the pagefile on my systems is to set it to be static and 1.5x physical RAM. I also create a pagefile on each disk and let Windows choose the best one (which will be the second logical drive). I do not want to disable the pagefile on C: because, from what I understand, this will disable crash dumps, which I do not want. However, I set the crash dump to kernel only, not the entire pagefile. That being said, would it be appropriate to set the pagefile on C: to something small like 256MB since the OS will be using the one on the second drive anyway? Also, other than not using the /3GB switch, are there any other differences between the memory/pagefile settings on a regular Exchange box running WS2k3 and the SBS2k3 version? I would appreciate any guidance. Dan DeStefano Info-lution Corporation www.info-lution.com MCSE - 2073750 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. As a public body, the Council may be required to disclose this email, or any response to it, under the Freedom of Information Act 2000, unless the information in it is covered by one of the exemptions in the Act. If you receive this email in error please notify Stockport e-Services via [EMAIL PROTECTED] and then permanently remove it from your system. Thank you. http://www.stockport.gov.uk ********************************************************************** Dan DeStefano Info-lution Corporation [EMAIL PROTECTED] <http://www.info-lution.com/> http://www.info-lution.com Office: 727 546-9143 FAX: 727 541-5888 If you have received this message in error please notify the sender, disregard any content and remove it from your possession. Dan DeStefano Info-lution Corporation [EMAIL PROTECTED] <http://www.info-lution.com/> http://www.info-lution.com Office: 727 546-9143 FAX: 727 541-5888 If you have received this message in error please notify the sender, disregard any content and remove it from your possession.
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