On Feb 5, 2008 5:12 PM, Joseph L. Casale jcasale@activenetwerx.com wrote:
If I needed to remove a disc from a software mirror for a quick backup before a test, how can I remove it cleanly so that it has a good copy of the OS on it? If I use mdadm to fail then remove it, this would be done while CentOS is running (It's a mirror of the system disc) and I suspect the data on it would not be in a clean state?
Don't "fail" the disk, just remove it physicaly or in the BIOS, that way it will be clean.
Then if your test is successful, your disk will be re-syncronized as soon as you put it back.
If your test fail you need to make your "saved" disk the good one. I things "md" choose the disk with the last time stamp as the "master" to replicate on the second one. Then boot on the "saved" one, before to reboot and sync both.
You could also try to change the partition system ID of your partition(s) to something else than 8e, using fdisk.
Regards
will update the time stamp, and then will make the new
Is there a way to say have it not involved in the mirror after the next boot for instance?
Thanks! jlc _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos