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Full Discussion: DELL M910 with RedHat Linux 5.5 getting "Buffer I/O error on device sdd"
Operating Systems Linux Red Hat DELL M910 with RedHat Linux 5.5 getting "Buffer I/O error on device sdd" Post 302547166 by devyfong on Sunday 14th of August 2011 11:49:20 AM
Old 08-14-2011
DELL M910 with RedHat Linux 5.5 getting "Buffer I/O error on device sdd"
Dear Guru,

IHAC who is using Redhat Linux 5 on DELL M910.

When system bootup, it show "Buffer I/O error on device sdd" error message. Below is the "dmesg" output.

The scenario is:
If more external FC SAN disk LUN add, the device would change other name. So it will impact the raw device mapping which they set in "/etc/udev/rules.d/60-raw.rules".

Anybody met this issue before? Any tips for fixing this issue?

Thanks a lot for your help!

Best regards,
David Feng

===================================
#dmesg | grep sdd
SCSI device sdd: 2 512-byte hdwr sectors (0 MB)
sdd: Write Protect is off
sdd: Mode Sense: 97 00 00 08
SCSI device sdd: drive cache: write through
SCSI device sdd: 2 512-byte hdwr sectors (0 MB)
sdd: Write Protect is off
sdd: Mode Sense: 97 00 00 08
SCSI device sdd: drive cache: write through
sdd:[0x000053420001015e][INFO][UP][__mppLnx_scsi_done, 2682][4294689543] UP_done: A0C0P0L0,r=8000002,MPP_CHECK_CONDITION,sk=5,ASC/ASCQ=20/0,SN:13.
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
Dev sdd: unable to read RDB block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
sd 8:0:0:0: Attached scsi disk sdd
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI device sdd: 2 512-byte hdwr sectors (0 MB)
sdd: Write Protect is off
sdd: Mode Sense: 97 00 00 08
SCSI device sdd: drive cache: write through
sdd:[0x000053420001015e][INFO][UP][__mppLnx_scsi_done, 2682][4294757946] UP_done: A0C0P3L0,r=8000002,MPP_CHECK_CONDITION,sk=5,ASC/ASCQ=20/0,SN:1915.
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
Dev sdd: unable to read RDB block 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
end_request: I/O error, dev sdd, sector 0
[root@rac1 log]# 001015e][INFO][UP][__mppLnx_scsi_done, 2682][4294757946] UP_done: A0C0P3L0,r=8000002,MPP_CHECK_CONDITION,sk=5,ASC/ASCQ=20/0,SN:1915.
-bash: 001015e][INFO][UP][__mppLnx_scsi_done,: command not found
===================================
DELL M910 with RedHat Linux 5.5 getting "Buffer I/O error on device sdd"-error_virtual_cdromjpg
 

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