Thanks Dave. Yeah you are right, it seems the problem comes from hardware and system power cycling (so that some IO transaction get lost).. ---------------------------------------- > Date: Fri, 7 Nov 2014 08:54:01 +1100 > From: david@xxxxxxxxxxxxx > To: yguang11@xxxxxxxxxxx > CC: xfs@xxxxxxxxxxx > Subject: Re: EIO and data corruption on XFS file system > > On Thu, Nov 06, 2014 at 01:03:45PM +0000, GuangYang wrote: >> 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, > > Data corruption doesn't trigger EIO errors. EIO errors from the > underlying storage might cause data corruption, but the only thing > that can detect bad data is the application itself, not the kernel. > >> 2) data is still accessible but the content is changed. > > Again, data being incorrect is generally not a filesystem issue > unless there's a bug somewhere in the filesystem IO path. You'll > need to give us a *lot* more information about your storage and > application workload if you think XFS is corrupting data. Start > with: > > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
