verify disk integrity
From: Dermot Paikkos (dermot_at_sciencephoto.com)
Date: 07/20/04
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Date: Tue, 20 Jul 2004 10:06:18 +0100 To: tru64-unix-managers@ornl.gov
Hi managers,
SYS: DS10, tur64 5.1, 36GB UWSCSI SSB, advfs FS.
I think I may have a corrupt disk and would like to verify. Our
database is reporting problems with the data file which it can not
repair with a re-index.
I have tried to use scu to check the disk. `verify` did not report
any problems. The output from `read` is below.
Does anyone know if there are other tools I can use or if there is
some way of establishing whether a disk is failing?
Much appreciated.
Dp.
scu: Error number 1 occurred on Tue Jul 20 10:00:56 2004
scu: Data compare error at byte 0 in record number 1
scu: Logical block number where error occured is 0
scu: Data expected = 0x39, data found = 0x00, byte count = 512
scu: The incorrect data starts at address 0x140048000 (marked by
asterisk '*')
scu: Dumping Data Buffer (base = 0x140048000, offset = 0, limit = 512
bytes):
0x140048000 *00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
0x14004801c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
0x140048038 00 00 00 00 00 00 00 00 57 45 56 82 04 00 00 00 42 44 30
33 36 36 33 34 39 43 00 00
0x140048054 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 02 00 00 fe 00 00 00
0x140048070 14 00 00 00 b2 36 00 00 d8 13 00 00 60 63 3d 04 00 00 00
....etc
~~
Dermot Paikkos * dermot@sciencephoto.com
Network Administrator @ Science Photo Library
Phone: 0207 432 1100 * Fax: 0207 286 8668
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