On 2/21/2013 3:09 AM, Svavar Örn 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