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02-12-2007 03:51 AM
02-12-2007 03:51 AM
HP-UX 11.00 volume problem
I check the syslog and found nothing reference to disk related problem. After I reboot it, I can see part of the writing was done.
This volume contains three disks and one of the disk was replaced recently. I am wondering if the problem is with SCSI controller.
Anyway I can check the SCSI controller?
Thanks,
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02-12-2007 03:55 AM
02-12-2007 03:55 AM
Re: HP-UX 11.00 volume problem
I would suspect one of the disks is bad. Try running dd against each of the disks:
dd if=/dev/rdsk/cNtNdN of=/dev/null bs=1024k
(repeat for each of the disks)
If you get an I/O error from one of them, then that disk is bad and needs to be replaced. Here's an excellent guide to disk replacement:
http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf
Pete
Pete
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02-12-2007 03:57 AM
02-12-2007 03:57 AM
Re: HP-UX 11.00 volume problem
Which filesystem are you attempting to write when the problem occurs ? What sort of file ?How are you attempting to write to it ?
Sounds extreme to reboot the machine for this type of issue.
Regards,
BErd
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02-12-2007 04:15 AM
02-12-2007 04:15 AM
Re: HP-UX 11.00 volume problem
I tried just cp a text file or any kind of file. I agree that system hanging is kind of odd, but that is what is going on.
I am trying dd again to see if any error happens.
Thanks.
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02-12-2007 05:32 AM
02-12-2007 05:32 AM
Re: HP-UX 11.00 volume problem
what type of server are you using ?
and where are the 3 disks located ?
Tal
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02-12-2007 07:20 AM
02-12-2007 07:20 AM
Re: HP-UX 11.00 volume problem
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02-12-2007 07:37 AM
02-12-2007 07:37 AM
Re: HP-UX 11.00 volume problem
I would try to boot the server up in single user mode.
then try to run DD on the disks as mentioned by Pete.
I have no information on your LVM structure or disk configuration but another thing you can do is while running commands that seems to be hung, pull out the other 2 disks that are the non OS disks and see if that relases the BUS (that ofcourse in single user mode).
if the commands reply back after you pulled a disk out, that disk is hunging the BUS.
hope it helps
Tal
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02-12-2007 08:38 AM
02-12-2007 08:38 AM
Re: HP-UX 11.00 volume problem
Thanks all for the help.