Svavar Örn Eysteinsson
2013-Feb-21 11:09 UTC
[CentOS] Ideal RAID-1 Stripe Size for IMAP Server ?
Hi there. I'm currently configuring a brand new email server(IMAP) which will run CentOS 6.3 x64. So lots of files on the data volume. I'm confused about stripe size for my data volume. I'm using 2x500GB for OS in RAID1 and 2x2TB SAS for DATA in RAID1 which is hosted on a HP Smart Array P420 Controller with 1GB in Cache/Battery Backed Up. Both these array's are on the P420 controller. The initial configuring from Array Configuration Tools gives me 256K in Strip Size. On both array's. What would be ideal for the data volume, and or the OS array ? I'm going to run XFS for the DATA volume. Any help and or suggestions would be much appreciated. Thanks allot folks. Best regards, Svavar Reykjavik - Iceland
On 2/21/2013 3:09 AM, Svavar ?rn Eysteinsson wrote:> I'm currently configuring a brand new email server(IMAP) which will run > CentOS 6.3 x64. > > So lots of files on the data volume. > > I'm confused about stripe size for my data volume. > I'm using 2x500GB for OS in RAID1 and 2x2TB SAS for DATA in RAID1 which is > hosted on a HP Smart Array P420 Controller with 1GB in Cache/Battery Backed Up. > Both these array's are on the P420 controller. > > The initial configuring from Array Configuration Tools gives me 256K in Strip Size. > On both array's. > > What would be ideal for the data volume, and or the OS array ?stripe size isn't important on a raid1 mirror, as both disks contain the same data. I usually leave that set to whatever defaults unless I have good reasons to change it for raid 5, 6, 1+0 volumes -- john r pierce 37N 122W somewhere on the middle of the left coast