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тАО02-17-2005 12:39 PM
тАО02-17-2005 12:39 PM
how to replace a System Disk!
os is Digital Unix 4.0D
in the kern.log there are some ERRoR information about the System disk RZ8
Feb 18 01:01:15 bcptt1 vmunix: AdvFS I/O error:
Feb 18 01:01:16 bcptt1 vmunix: Volume: /dev/rz8a
Feb 18 01:01:16 bcptt1 vmunix: Tag: 0xfffffffa.0000
Feb 18 01:01:16 bcptt1 vmunix: Page: 157
Feb 18 01:01:17 bcptt1 vmunix: Block: 12672
Feb 18 01:01:17 bcptt1 vmunix: Block count: 128
Feb 18 01:01:18 bcptt1 vmunix: Type of operation: Read
Feb 18 01:01:18 bcptt1 vmunix: Error: 5
what's wrong with the System Disk?
How to replace it?
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тАО02-17-2005 03:16 PM
тАО02-17-2005 03:16 PM
Re: how to replace a System Disk!
You should use the btcreate command to take a system backup to tape and maybe an additional dd of the whole disks' raw device for recovery purposes, then order a new hard drive from hp and get a downtime.
then replace the current harddrive with the new one and boot from the tape.
keep the old drive in reach in case there are problems, but I think You shouldn't wait too long with this.
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тАО02-17-2005 07:18 PM
тАО02-17-2005 07:18 PM
Re: how to replace a System Disk!
You should have a look at the errorlog (probably with the "uerf" tool on V4.0D), to see what causes the errors. It's likely that there is a hardware cause for this error.
It's always good to make sure that you have a valid backup. Using "dd" is NOT the recommended way to make backups. I would suggest looking at "vdump" or some 3rd party backup application.
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тАО02-18-2005 12:48 AM
тАО02-18-2005 12:48 AM
Re: how to replace a System Disk!
To replace the disk on this V4.0D:
If you have room for an identical replcement disk in the 4100 disk-bay...(say rz12)
cd /dev
./MAKEDEV rz12
disklabel rz8 > /tmp/rz8.label
disklabel -rw -t advfs rz12
disklabel -R -t advfs rz12 /tmp/rz8.label
disklabel -sF rz12a unused
disklabel -sF rz12g unused
mkfdmn rz12a new_root
mkfdmn rz12g new_usr
mkfset new_root root
mkfset new_usr usr
shutdown now
mount new_root#root /mnt
vdump -0uf - / | vrestore -xf - -D /mnt
umount /mnt
mount new_usr#usr /mnt
vdump -0uf - /usr | vrestore -xf - -D /mnt
umount /mnt
halt
power-off + insert rz12 in location of rz8
boot.
___ Johan.
_JB_
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тАО02-20-2005 11:34 PM
тАО02-20-2005 11:34 PM
Re: how to replace a System Disk!
Mohamed