I'm running Red Hat AS 4 on a Dell PowerEdge 1950. It connects to an Apple
Xserve RAID via a Qlogic QLE2460 card. I am able to create a 4TB ext3
partition with no problems and use it fine. When the system power drops or
it's rebooted, the file system can't be mounted again. It looks like
the
partition table is getting corrupted. Here is some of the doc I gathered:
Output from fsck:
fsck /dev/sdb1
fsck 1.35 (28-Feb-2004)
e2fsck 1.35 (28-Feb-2004)
The filesystem size (according to the superblock) is 1098848000 blocks
The physical size of the device is 25106176 blocks
Either the superblock or the partition table is likely to be corrupt!
----------------------------------------------------------------------------
Output from parted:
parted /dev/sdb
GNU Parted 1.6.19
Copyright (C) 1998 - 2004 Free Software Foundation, Inc.^M
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
Using /dev/sdb
(parted) print
Disk geometry for /dev/sdb: 0.000-4292376.000 megabytes
Disk label type: msdos
Minor Start End Type Filesystem Flags
1 0.031 98071.031 primary ext3
(parted) check 1
Warning: Partition 1 is 98071.000Mb, but the file system is 4292375.000Mb.
---------------------------------------------------------------------------
Output from debugfs:
debugfs /dev/sdb
debugfs 1.35 (28-Feb-2004)
/dev/sdb: Bad magic number in super-block while opening filesystem
debugfs: open /dev/sdb1
/dev/sdb1: Can't read an inode bitmap while reading inode bitmap
debugfs: quit
----------------------------------------------------------------------------
We connect via a Qlogic QLE2460 to the Apple XServe RAID:
qla2400 0000:0c:00.0:
QLogic Fibre Channel HBA Driver: 8.01.07
QLogic QLE2460 - PCI-Express to 4Gb FC, Single Channel
ISP2432: PCIe (2.5Gb/s x4) @ 0000:0c:00.0 hdma+, host#=1, fw=4.00.26 [IP]
Vendor: APPLE Model: Xserve RAID Rev: 1.51
Type: Direct-Access ANSI SCSI revision: 05
qla2400 0000:0c:00.0: scsi(1:0:0:0): Enabled tagged queuing, queue depth 32.
sdb : very big device. try to use READ CAPACITY(16).
SCSI device sdb: 8790786048 512-byte hdwr sectors (4500882 MB)
SCSI device sdb: drive cache: write back
sdb : very big device. try to use READ CAPACITY(16).
SCSI device sdb: 8790786048 512-byte hdwr sectors (4500882 MB)
SCSI device sdb: drive cache: write back
sdb: sdb1
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
----------------------------------------------------------------------------
Current output of parted after I remade the file system and restored the
data:
parted /dev/sdb1
GNU Parted 1.6.19
Copyright (C) 1998 - 2004 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
Using /dev/sdb1
(parted) print
Disk geometry for /dev/sdb1: 0.000-4292375.967 megabytes
Disk label type: loop
Minor Start End Filesystem Flags
1 0.000 4292375.967 ext3
I'm afraid this will happen again the next time I reboot the system. Any
ideas what might be causing it and how to fix it?
Thanks,
Randy
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