On Tue, Oct 20, 2009 at 1:11 AM, Ow Mun Heng <ow.mun.heng@xxxxxxx> wrote: > Sorry guys, I know this is very off-track for this list, but google hasn't > been of much help. This is my raid array on which my PG data resides. > > I have a 4 disk Raid10 array running on linux MD raid. > Sda / sdb / sdc / sdd > > One fine day, 2 of the drives just suddenly decide to die on me. (sda and > sdd) > > I've tried multiple methods to try to determine if I can get them back > online. > > 1) replace sda w/ fresh drive and resync - Failed > 2) replace sdd w/ fresh drive and resync - Failed > 3) replace sda w/ fresh drive but keeping existing sdd and resync - Failed > 4) replace sdd w/ fresh drive but keeping existing sda and resync - Failed > > > Raid10 is supposed to be able to withstand up to 2 drive failures if the > failures are from different sides of the mirror. > > Right now, I'm not sure which drive belongs to which. How do I determine > that? Does it depend on the output of /prod/mdstat and in that order? Is this software raid in linux? What does cat /proc/mdstat say? -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
