I find your more likely to lose a power supply..taking out the entire box Yes even on some "dual" ps models losing one will take out the box
2 cents bill -----Original Message----- From: Anthony Sollars [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 16, 2004 12:44 PM To: Exchange Discussions Subject: RE: Exchange 2003 performance Well now we are getting into a question of SLA's. Our SLA states we are willing to lose 24 hours of email. Don't bark at me, I didn't write it, but you are correct if it happened and an exec lost email, it would change. But with all servers having one Hot spare drive, how likely are you to have 3 drive failures on one server. In the history of this place it has never happened. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Sollars Sent: Monday, March 15, 2004 7:59 PM To: Exchange Discussions Subject: RE: Exchange 2003 performance For small installations it is not an issue at all. We have Exchange 5.5 servers with 500 users on them and they have 5 disk in RAID 5, logically partitioned for OS, Logs, Db. Not saying this is optimal but they run solid and have been for 6 years, now we have one Exchange 5.5 servers in South America with the same config and it is having disk i/o performance issues. So there is a limit to going the cheaper route. But as we all migrate to Exchange 2003 and load out servers with several thousand users, this optimization becomes a much needed step. Not only for performance but for stability since one server handles so many users. Tony -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Joyce Sent: Monday, March 15, 2004 3:12 PM To: Exchange Discussions Subject: RE: Exchange 2003 performance I have my store and logs on the same array and have not experienced any issues. What are the concerns with doing this ? I have a 5 drive Raid5, I did not want to use Raid1 + Raid5 because the amount of cpacity use for tollerance would increase from 20% to 40%. Matt -- > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Gonzalez, Alex > Sent: Tuesday, 16 March 2004 2:04 AM > To: Exchange Discussions > Subject: RE: Exchange 2003 performance > > > Definitly the RAID1 would be better. I dont know when you > would ever want to put the DB and logs on the same array if > you have another one. > > > > -----Original Message----- > From: Fyodorov, Andrey FTL [mailto:[EMAIL PROTECTED] > Sent: Monday, March 15, 2004 9:57 AM > To: Exchange Discussions > Subject: RE: Exchange 2003 performance > > > What does your gut tell you? > > Mine tells me that the logs will like it better on the RAID1. > Not the ideal configuration but better than having them on > the same volume as the DBs. > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Mikael Andersson > Sent: Monday, March 15, 2004 3:51 AM > To: Exchange Discussions > Subject: Exchange 2003 performance > > > Im setting up a new Exchange 2003 server and my question is > how I should configure it to get the best performance. The > machine have 5 disks, two disks in a RAID-1 configuration > that holds the OS, and three disks in a RAID-5 configuration > that will hold the database, where should I put the logs to > get the best performance, on the RAID-1 with the OS or the > RAID-5 with the database? > > /micke > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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