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Re: R: Question about changing Tape Drive
2005-09-30 11:58:01
Montagni, Giovanni wrote:
define tapetype olddrive {
comment "just produced by tapetype prog (hardware compression on)"
length 1604 mbytes
filemark 0 kbytes
speed 393 kps
}
define tapetype newdrive {
comment "just produced by tapetype prog (hardware compression off)"
length 1949 mbytes
filemark 267 kbytes
speed 166 kps
}
As you can see, the drive is similar, but not identical. So the question is: if
i set blocksize (blocksize = filemark?) to 0, i am able to read the tape? or i
have lost my backups?
blocksize has nothing to do with filemark. And for reading the tape,
the tapetype definition isn't actually needed; you must be able to read
data from the tape `by hand' using Paul's suggestions. If that doesn't
work, you won't be able to get your data.
So please try reading the label:
mt -f /dev/nst0 rewind
dd if=/dev/nst0 bs=32k count=1
(assuming your tape lives at /dev/nst0 which I don't remember)
If that doesn't give you the correct tape label in a human readable
format, something's afoul. Have a look into the system log for possible
causes; try playing around with different blocksizes as well.
You need to debug this first before going back to amanda's config.
Alex
--
Alexander Jolk * BUF Compagnie * alexj AT buf DOT com
Tel +33-1 42 68 18 28 * Fax +33-1 42 68 18 29
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