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тАО11-02-2003 04:07 PM
тАО11-02-2003 04:07 PM
I have backup to file set using below command:
vdump -0uvf /dev/tape/tape1_d1 -N -U /mB
vdump -0uvf /dev/tape/tape1_d1 -N -U /mB1
The problem is I can't see the second fileset.
Here are the command I used :
mt -f /dev/tape/tape1_d1 fsf 1
then
vrestore -i-f /dev/tape/tape1_d1
vrestore: Date of the vdump save-set: Mon Nov 3 13:11:43 2003
vrestore: Save-set source directory : /mB
(/)
I see /mB not /mB1.Any idea what I do wrong.
regards
mB
Solved! Go to Solution.
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тАО11-02-2003 05:14 PM
тАО11-02-2003 05:14 PM
Solutionthere must be a device name for your tape device for no rewind option. you will have to use that device name with the mt command while usign the fsf option and then use the vrestore command.
Generally what i use is like this
vdump -0uf /dev/nrmt1h /
vdump -0uf /dev/nrmt1h /usr
and so on
and while restoring , suppose i want to restore the 2nd filesystem
mt -f /dev/nrmt1h fsf 1
vrestore -i -f /dev/nrmt1h
This way the no rewind device name is generally preceded by "n" to your normal device name
i.i normal device name is /dev/rmt1h
and norewind device name is /dev/nrmt1h
Hope you find the norewind device name in your case and that will solve your problem
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тАО11-02-2003 07:00 PM
тАО11-02-2003 07:00 PM
Re: To restore multiple file set
Without using the "norewind" option the tape rewinds the tape after executing the backup command and the next tape command (like vdump) overwrites the saveset. In your case you have used the -N option not leading to a rewind of the tape so second saveset have not overwritten the first one.
use
# mt -f /dev/ntape/tape1_d1 fsf 1
to forward the tape to the next positon (as described in detail in the admin guide) or use the ntape device within you first vrestore command so tape will halt after restoring the saveset.
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тАО11-02-2003 07:02 PM
тАО11-02-2003 07:02 PM
Re: To restore multiple file set
In V5.X, the no-rewind tape devicefiles are located in /dev/ntape
Joris
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тАО11-02-2003 07:58 PM
тАО11-02-2003 07:58 PM
Re: To restore multiple file set
have you read my posting? It contains the same information in detail.
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тАО11-02-2003 07:59 PM
тАО11-02-2003 07:59 PM
Re: To restore multiple file set
Look at the timestamp, we were typing at the same moment.
Joris
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тАО11-03-2003 11:40 PM
тАО11-03-2003 11:40 PM
Re: To restore multiple file set
I know that you have got the answers to your question, but I just wanted to add something here:
I usually use the following command in all my restores and have been using them for a long time with a good backup compression and restore effectiveness:
vdump -0 -u -f /dev/ntape/tape1c /mB
vdump -0 -u -f /dev/ntape/tape1c /mB1
.....
This will give you compression ratio according to the hardware you are using, like the DLTs, if you want to force compression you can add the parameter (-C, no need to bother yourself with tape1_d1
Also using the ntape, the tape will not rewind after finishing the backup command, so this way you can backup several savesets on the same tape.
Also when restoring, just count which save set you want to go to and issue the command
mt -f /dev/ntape/tape1c fsf "number"
vrestore -i -f /dev/ntape/tape1c
Hope this helps
Mohamed