[CentOS] [OT/HW] hardware raid -- comment/experience with 3Ware
Keith Keller
kkeller at wombat.san-francisco.ca.us
Tue Mar 12 18:31:12 UTC 2013
On 2013-03-12, Arun Khan <knura9 at gmail.com> wrote:
>
> Software RAID is an option but I don't think hot swap is possible
> without some tinkering with the mdadm tool a priori.
Hot-swapping a failed drive is basically the same process AFAICT with a
3ware array or an md array. The primary issue would be to make sure the
controller supports hot swap, and how you tell it to release a drive
from the kernel (a la tw_cli /cx/px remove). And if you have one or two
spares on a modest array then you can schedule site visits around your
own schedule if a drive fails--either a hardware RAID or linux md will
automatically rebuild with a spare when an active drive is marked as
failed.
Did you have other concerns about hot swapping? I may be confusing what
you're hoping to do.
--keith
--
kkeller at wombat.san-francisco.ca.us
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