On 2011.06.20 at 13:45 +0200, Michael Monnerie wrote: > On Montag, 20. Juni 2011 Markus Trippelsdorf wrote: > > Here are two more examples. The time when the hang occurs is marked > > Could it be that some sectors on the disk are not easy to read for the > drive, and that it simply retries several times until it works again? > SATA disks can show that behaviour. You could try with "dd" with > seek/skip parameters so you read 1gb at once, then skip 1gb and read 1gb > again etc, and compare the throughput over all 1gb areas. If there's one > slower, that might be the problem. > > Maybe a check with "smartctl" could help, too. Thanks for the hint, Michael. I've just checked the SMART status on both disks and the 4kb drive looks indeed suspicious: 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 8 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 8 The 512 byte drive appears to be fine. But I'm running the long SMART self test on both of them right now and will report back the result in a few hours. -- Markus _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
