What RAID level is this? Would RAID 10 or RAID 6 help in such scenarios?
On Mon, Mar 14, 2011 at 9:56 AM, Joe Landman <[email protected]> wrote: > On 03/14/2011 12:50 PM, Terry Haley wrote: >> >> Hello, > > [...] > >> My question has two parts. >> >> >> >> 1. If I perform an xfs_repair will gluster become out of sync with >> the >> filesystem in lieu of repairs? > > If the xfs_repair modifies the extended attributes, it is possible that the > gluster file system will appear to be inconsistent. Same issue would be > with ext* and fsck. Gluster team would need to respond to this. > >> 2. Can I trust the backups I performed after these issues cropped up >> as a result of the distribution of files across the nodes? Ie, a file is >> only ¾ complete or would gluster complain and make that file unavailable >> as >> it should? > > Good question. Can you verify that the data stored on the corrupted RAID > hasn't been replicated to the other nodes? If so, easiest route might be a > RAID rebuild, and then a file system wipe on the effected node, followed by > a resync (assuming you are doing a replicated design). > > If the bad data's been replicated, then you probably have to trash that data > (and do something similar to the above anyway). > > Does your RAID kit have a scan/check function? We do this with our units > (both hardware/software RAID), and schedule full scans at least weekly. > Strongly advise something similar if you aren't doing it already. > > Regards, > > Joe > > -- > Joseph Landman, Ph.D > Founder and CEO > Scalable Informatics Inc. > email: [email protected] > web : http://scalableinformatics.com > http://scalableinformatics.com/sicluster > phone: +1 734 786 8423 x121 > fax : +1 866 888 3112 > cell : +1 734 612 4615 > _______________________________________________ > Gluster-users mailing list > [email protected] > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > _______________________________________________ Gluster-users mailing list [email protected] http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
