Peter Orlowski wrote:
On Tue, May 10, 2005 at 11:24:12AM -0600, secmgr wrote:What steps did you take to the gmirror the disk so you could get your data back?
Gabor Esperon wrote:
How reliable is the gmirror subsystem?gmirror seems fine as best as I can tell. I've been running it for a few months on sata drives.
I had gmirror running on two IDE drives for system and two SATA
drives for user data. That was RELENG_5_3. When one of the SATA drives broke (later I got errors like
ad4: FAILURE - READ_DMA status=51<READY,DSC,ERROR>
on fscking) the whole system just stopped. I could switch consoles but nothing else. Nothing in the logs either. I believe it had lost all it's file systems.
After power cycling, both mirrors were found but marked as broken. Gmirror chose the defective SATA disk as the intact one and started
rebuilding the mirror from that - but fscking the mirror failed,
obviously, so I ended up with one disk that was broken, but marked intact
by gmirror and one disk the other way round.
I had to erase the gmirror metadata on the intact disk to get it
to work again.
I'd say gmirror will save your data but it won't save you from some downtime...
Greetings, Peter
At this point, I'm thinking that as far as S/W RAID goes in FreeBSD, the "R" is pretty meaningless
jim _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
