This problem is with the SCSI driver for USB HDD. We checked for SATA specific USB HDD and the problem is not happening there. The issue lies with the non-availability of internal write cache flushing routine in SCSI Driver. Thanks for all the support. Regards, Amit Sahrawat On Tue, Jul 26, 2011 at 3:57 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Tue, Jul 26, 2011 at 03:17:48PM +0530, Ajeet Yadav wrote: >> Hello Dave, >> I have seen this problem comes only with USB HDD (we have tired >> different USB HDD, but it seems common with HDD), while USB FLASH >> works fine. > > Can you make sure the USB HDD actually does flush caches reliably and > doesn't lose data it claims it guaranteed to disk? In addition to the > generally bad implementation quality of USB periphals there is a large > chance of beeing lost in translation when converting the SCSI WCE mode > and FUA bit concepts to the ATA equivalents. > > _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
