[CentOS] Ideal RAID-1 Stripe Size for IMAP Server ?

[John R Pierce]

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