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SubjectUrgent SCSI I/O Error
Hi,

This question might have been raised before but I am stucked in
between wierd/helpless situation and wondering if someone can help me
out.

I have Red Hat Linux 6.2 (2.2.14-5.0smp) running in my HP Netserver
box. I have 2 9.1 GB HDD. The server has been up for few months and
have not had seen any problem. But today all of sudden it gave
panicking message saying following:

Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:06, sector 4194368
Feb 25 18:48:12 nsdb1 kernel: EXT2-fs error (device sd(8,6)): ext2_write_inode: unable to read inode block - inode=251018, block=524296
Feb 25 18:48:12 nsdb1 kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 28000002
Feb 25 18:48:12 nsdb1 kernel: [valid=0] Info fld=0x0, Current sd08:06: sense key Not Ready
Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:06, sector 1835048
Feb 25 18:48:12 nsdb1 kernel: EXT2-fs error (device sd(8,6)): ext2_write_inode: unable to read inode block - inode=109814, block=229381
Feb 25 18:48:12 nsdb1 kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 28000002
Feb 25 18:48:12 nsdb1 kernel: [valid=0] Info fld=0x0, Current sd08:06: sense key Not Ready
Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:06, sector 40
Feb 25 18:48:12 nsdb1 kernel: EXT2-fs error (device sd(8,6)): ext2_write_inode: unable to read inode block - inode=57, block=5
Feb 25 18:48:12 nsdb1 kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 28000002
Feb 25 18:48:12 nsdb1 kernel: [valid=0] Info fld=0x0, Current sd08:07: sense key Not Ready
Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:07, sector 1048832
Feb 25 18:48:12 nsdb1 kernel: EXT2-fs error (device sd(8,7)): ext2_write_inode: unable to read inode block - inode=62495, block=131104
Feb 25 18:48:12 nsdb1 kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 28000002
Feb 25 18:48:12 nsdb1 kernel: [valid=0] Info fld=0x0, Current sd08:06: sense key Not Ready
Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:06, sector 0
Feb 25 18:48:12 nsdb1 kernel: SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 28000002
Feb 25 18:48:12 nsdb1 kernel: [valid=0] Info fld=0x0, Current sd08:07: sense key Not Ready
Feb 25 18:48:12 nsdb1 kernel: scsidisk I/O error: dev 08:07, sector 0

I have system running but cannot access files/database saved in
volumes in the second HDD sdb. Following are the partitions I have and
I haven't used any RAID while instaling, means plain hard drive spaces
in 2 drives.

/dev/sdb6 917072 732972 137516 84% /
/dev/sda1 18820 5811 12037 33% /boot
/dev/sda6 2218336 462492 1643156 22% /www
/dev/sda5 5297560 418936 4609520 8% /home
/dev/sda7 1210440 711516 437436 62% /software
/dev/sdb1 5550188 50896 5217356 1% /usr
/dev/sdb5 2016016 28572 1885032 1% /var

I can access files in all the other partitions but cannot access
files/directories in partition /www. I can see files in the
directories listing using 'ls' however accessing any file gives
Input/Output error saying:

cat check1.htm: Input/output error



Can anyone help/suggest me what should I do to make it work? I am
wondering if I reboot the system, I may fall into problem on booting
itself. Is there any thing I need to do to make this partition work?

Thanks in advance for the help.

Regards
Manohar

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