Hello, I am wondering that, whether it is possible to give up that problematic OST, and only make the other OSTs active, so that we can rescue part of the data files ?
Now we have totally 6 OSTs, and one of the OST has problem that I have no idea to repair now. If now I only activate the 5 OSTs, could I get back (at most) 5/6 of data files, or I can just get back junk files (since the files are divided into fragments and are distributed into all OSTs) ? If only activates the 5 OSTs can get back some data files, what's the procedure I could do ? Because I am under time pressure to recover the system. Hence I am considering the worst situation .... Thanks so much for your kindly reply. Best Regards, T.H.Hsieh On Tue, Mar 10, 2009 at 10:56:17PM +0800, thhsieh wrote: > Hello, > > We have done it without "-n" command augument. > Hence the filesystem is modified. > > Best Regards, > > T.H.Hsieh > > > On Tue, Mar 10, 2009 at 10:04:24AM -0400, Brian J. Murrell wrote: > > On Tue, 2009-03-10 at 18:14 +0800, thhsieh wrote: > > > Hello, > > > > Hi. > > > > > Thanks very much for your kindly reply. > > > > NP. > > > > > We did the e2fsck (version 1.41.4) on all the OST partitions. > > > > You did that with or without "-n" in the command arguments? > > > > > [80083.964462] LDISKFS-fs: group descriptors corrupted! > > > [81423.119834] LDISKFS-fs error (device sdb1): ldiskfs_check_descriptors: > > > Checksum for group 11165 failed (0!=20224) > > > > Hrm. I don't know enough about the innards of ext3 to parse that. > > Maybe (well, no maybes about it) Andreas will know if he is reading. > > > > > We tried e2fsck with superblock 32768, but after some error > > > corrections again we encounter the same problem. > > > > Again, with our without e2fsck's "-n" argument? > > > > b. > > > > > > > _______________________________________________ > > Lustre-discuss mailing list > > [email protected] > > http://lists.lustre.org/mailman/listinfo/lustre-discuss > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
