Thanks Emmanuel. That clarifies things a lot. Thanks, Guang ---------------------------------------- > Date: Thu, 6 Nov 2014 15:27:41 +0100 > From: eflorac@xxxxxxxxxxxxxx > To: yguang11@xxxxxxxxxxx > CC: xfs@xxxxxxxxxxx > Subject: Re: EIO and data corruption on XFS file system > > Le Thu, 6 Nov 2014 13:03:45 +0000 > GuangYang <yguang11@xxxxxxxxxxx> écrivait: > >> Hello,While working on the storage system, I got one question in >> terms of the XFS utilities to fix file system corruption. Basically, >> our storage system put 3 copies of data and the system would detect >> data inconsistency on regular basis, there are two patterns we >> observed so far: 1) the data is corrupted which result in an EIO, 2) >> data is still accessible but the content is changed. I am wondering >> the way to fix such issues from file system's perspective, do we >> expect hardware failure for both cases or some xfs repairing tools >> could help for such case? > > XFS relies on the underlying hardware to maintain data integrity. The > latest XFS version comes with metadata checksums, which allows > correcting invalid data in filesystem structures, but not data. > > Generally speaking, if the data is corrupted because of faulty hardware, > xfs_repair can't help. > > regards, > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | <eflorac@xxxxxxxxxxxxxx> > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
