[Linux-cluster] Re: GFS on md on shared disks?
Ed L Cashin
ecashin at coraid.com
Thu Oct 7 18:15:22 UTC 2004
Jonathan E Brassow <jbrassow at redhat.com> writes:
> Hardware raid is fine, but software raid has it's limitations in this
> space.
>
> If you can ensure that there will be no failures (in which case, you
> wouldn't be using raid5), and that the devices are always in the same
> order, etc -then go ahead.
>
> If you have one machine that has a failure on a drive, only this
> machine will do the appropriate thing - leaving the others with a view
> of the device that is inconsistent with that of the machine on which
> the failure took place. This is the fundamental problem.
Doh! I was only thinking of the common case. Thanks.
--
Ed L Cashin <ecashin at coraid.com>
More information about the Linux-cluster
mailing list