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тАО11-29-2009 11:44 PM
тАО11-29-2009 11:44 PM
SCSI errors
Hello,
We have SLES 10 System with SCSI disks.
We have noticed attached errors occurred for lets say 5 minutes. Wonder if the disk is going to fail?
If yes what are the best possible ways to minimise the imapct? I have already taken the backup of the partitions like,
/
/boot
/opt
/var
/var/home
/srv/fpt etc..
Please suggest.
Thanx,
Admin
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тАО11-30-2009 04:52 AM
тАО11-30-2009 04:52 AM
Re: SCSI errors
Probably would be better if you replace the disk before disaster strikes.
Take a good backup and restore to the new disk. From your output, I cannot say what is the file system associated with your disk.
The following information is also needed:
fdisk -l
cat /etc/fstab
vgdisplay -v
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тАО11-30-2009 05:05 AM
тАО11-30-2009 05:05 AM
Re: SCSI errors
sda is the boot disk :(
Thanx,
admin
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тАО12-01-2009 12:23 AM
тАО12-01-2009 12:23 AM
Re: SCSI errors
dd if=/dev/sda of=/dev/null
for read whole disk and see how many errors you'll see.
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тАО12-01-2009 12:26 AM
тАО12-01-2009 12:26 AM
Re: SCSI errors
We have taken the backup of the root partitions. But still we also would
like to prepare a disk which in case of the failure can be inserted and bring up the system as it was before.
Is there any such efficient way to do it?
We have a new disk of similar size.
So any suggestions?
Thanx,
admin
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тАО12-01-2009 03:09 AM
тАО12-01-2009 03:09 AM
Re: SCSI errors
In second case you should break mirror, replace disk and re-build RAID - all using REIAd manager.
In the first case, if you have the same size or bigger disk and free SCSI slot in your server, I'll just insert new disk and clone old -> new disk using "dd".
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тАО12-01-2009 03:13 AM
тАО12-01-2009 03:13 AM
Re: SCSI errors
Its a single disk without RAID. So lets suppose I insert a new disk in the slot and run
dd if=/dev/sda of=/dev/sdd bs=1M
Will work?
Will this disk boot as the original as well?
Thanks,
admin
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тАО12-01-2009 04:51 AM
тАО12-01-2009 04:51 AM
Re: SCSI errors
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тАО12-01-2009 12:26 PM
тАО12-01-2009 12:26 PM
Re: SCSI errors
You could also use software raid tools mdadm
http://tldp.org/HOWTO/Software-RAID-HOWTO-5.html#ss5.6
SEP
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тАО12-01-2009 01:56 PM
тАО12-01-2009 01:56 PM
Re: SCSI errors
Cold you please clarify the steps involved?
Thanx,
admin