RE: [ActiveDir] Raid suggestions for DC maybe OT

[Bahta Nathaniel V Contractor NASIC/SCNA]

Dan, Just like any Raid Scheme, it pays to pay attention to the types of reads and writes your system will be making.  Keep the random, reads/writes on one drive, and the Sequential reads/writes on another, that is seperate directory data, from log data.  That allows you to keep your head seek time in the correct category for the type of data being presented.    Mirrored (or RAID1) for DIT and OS Mirrored (or RAID1) for Logs   Nathaniel Bahta General Dynamics Network Systems     From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rick Kingslan Sent: Sunday, November 06, 2005 10:17 AM To: ActiveDir@mail.activedir.org Subject: RE: [ActiveDir] Raid suggestions for DC maybe OT Dan - there will likely be as many opinions on this topic on this list as there are knots on joe's head.   Basic rules for a DC are this (IMHO):   Mirrored (or RAID1) for OS Mirrored (or RAID1) for DIT and Logs   You can certainly host a third mirrored pair for the logs, but that will mostly depend upon how BUSY your AD is and how high the replication traffic, changes, updates etc. that you experience.   If you're asking this, you most likely have a newer AD, or are re-architecting.  In either case, I'd start with the above and then monitor the performance with PerfMon.  Make some decisions on whether to ADD the third mirror based upon the I/O and performance impact of log writes vs. impact on the database reads/writes.   Hope this helps!   Rick [msft] -- Posting is provided "AS IS", and confers no rights or warranties ...       From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dan Cox Sent: Sunday, November 06, 2005 1:31 AM To: ActiveDir@mail.activedir.org Subject: [ActiveDir] Raid suggestions for DC maybe OT What would be the suggested RAID and partitioning scheme for a Domain controller.   Any suggestions are appreciated. Thanks.   Dan Cox