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тАО02-06-2007 01:07 AM
тАО02-06-2007 01:07 AM
I have a challenge in extracting data from a tape...I have a tape that was archived using the following commands--this was done by one of our client and they have sent the tape to us (the tape drive is ultrium):
1. find .-print | backup -iv -b 4000 -f /dev/rmt1
2. chdev -l /dev/rmt1 -a block_size=4000
Now they have sent me some commands to read the tape and here are the commands -:
1. restore -Tqv -b 4000 -f /dev/rmt1
when i execute the commands I get this -:
restore: illegal option -- T
Bad option character ?
To extract :
1. restore -xv -b 400 -f /dev/rmt1
when I execute this I get :
Verify tape and initialize maps
partial block read: 4000 should be 409600
abort? [yn]
when I enter n I get this :
it goes back to the shell prompt #
How should I restore data if the situation is like this?
Please Help!!!!!!!!!!!!
Solved! Go to Solution.
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тАО02-06-2007 02:14 AM
тАО02-06-2007 02:14 AM
Re: Extracting Data From Tape
Can you confirm what operating system(s) are involved here please.
I could be wrong, but the commands mentioned above don't appear to be relevant to Tru64 UNIX.
Cheers,
Rob
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тАО02-06-2007 11:19 PM
тАО02-06-2007 11:19 PM
Re: Extracting Data From Tape
I am still waiting for the people who used those cammands to advice me on which operating system are they using...I will notify you guys when I get the answer...
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тАО02-06-2007 11:27 PM
тАО02-06-2007 11:27 PM
Re: Extracting Data From Tape
-bande1/4 ( /db1 , /db2 )
-bande2/4 ( /db3 )
-bande3/4 ( /db4,/db4 )
-bande1/4 ( /db1 , /db2 )
-bande2/4 ( /db3 )
-bande3/4 ( /db4,/db4 )
-bande4/4( /db5, /apps , /export , /conv , /archive)
I want to know how can I extract the data on these tapes? more especially the data on -bande4/4 the /export...please I will also appreciate help on these problem....
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тАО02-06-2007 11:39 PM
тАО02-06-2007 11:39 PM
Re: Extracting Data From Tape
If the backup has been done using vdump, then use the vrestore command to restore.
You will probably have to use something like this, assuming that your using Tru64 v5 and your tape device is tape0.
# mt -f /dev/ntape/tape0 fsf 2
to forward the tape drive to the correct save set, then
# vrestore -xf /dev/ntape/tape0
to extract that data to the current working directory. You might however want to check what's on the tape first which you can do with
# vrestore -i
Hope this helps,
Regards,
Rob
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тАО02-07-2007 12:51 AM
тАО02-07-2007 12:51 AM
Re: Extracting Data From Tape
This is exactly what I was looking for...thanks a lot...
If I want to extract the whole tape without going to a specific save set..How do I go about that...I still experience a little problem...when I execute mt -f /dev/ntape/tape0 fsf 2 I get this :
vrestore: Date of the vdump save-set: Sun Nov 19 20:43:22 2006
vrestore: Save-set source directory : /conv
I want the save set source directory to be : /export
pls help
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тАО02-07-2007 01:08 AM
тАО02-07-2007 01:08 AM
Re: Extracting Data From Tape
# mt rewind
# vrestore -i
Check which save set it is - should be /db5 according to what you posted earlier, but it might be /apps
# mt rewind
# mt -f /dev/ntape/tape0 fsf 1
# vrestore -i
See where you are on the tape now...
Hope this helps,
Regards,
Rob
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тАО02-07-2007 01:35 AM
тАО02-07-2007 01:35 AM
Re: Extracting Data From Tape
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тАО02-07-2007 02:15 AM