On Mon, 2008-03-10 at 20:02 +0100, Janek Kozicki wrote: > James Bottomley said: (by the date of Mon, 10 Mar 2008 10:36:26 -0500) > > > > I'm afraid the only way to confirm this theory definitively will be with > > the destructive disktest > > you can try this destructive test: > > badblocks -c 10240 -s -w -t random -v /dev/sdc > > or use smaller value for -c if you wish. No, you can't (at least not to prove what I think the problem is). That test is looking for media failure and uses special write patterns to try to find it. We're looking for head misplacement. The reason for using the disktest test is that it specifically writes the block number into the block ... and it compares it back on read. The test will definitively pick up any misplaced sector write errors done by the disk. James -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
