Zitat von Bruno Friedmann <[email protected]>:
On jeudi, 2 novembre 2017 11.38:03 h CET [email protected] wrote:
Hello,
we are testing our desaster restore and with this the question arises
if it is really possible to restore for example LTO-4 tapes with a
LTO-6 drive/changer?
We are failed to do so with LTO-4 tapes written by some HP drive
reading with a IBM LTO-6 drive. The error from Bareos 15.2 is :
30-Okt 14:44 bareos-sd JobId 5: Ready to read from volume "000028L4"
on device "Drive-1" (/dev/nst0).
30-Okt 14:44 bareos-sd JobId 5: Error: block.c:1003 Read error on fd=6
at file:blk 0:0 on device "Drive-1" (/dev/nst0). ERR=Device or
resource busy.
Long time ago I was doing similar things with sdlt and dds drive and I don't
remember this kind of trouble.
(could be also emulated with the hardware switch to R/O on the tape)
did you check is there's some other tools using /dev/nst0 (lsof)
and I guess you have double-check the permission that bareos user (normally
used by bareos-sd) is part of the rw group of /dev/nst0 ?
Ok, so in theorie it should work ;-)
I'm pretty sure that nothing is using /dev/nst0 because the obvious
tests with btape and LTO6 tapes succeed. As they are done with
"bareos" user permissions should be ok as suggested by the permissions
on /dev/nst0 and the group assignment. A error of the LTO device
should be logged kernel log, no?
I will do some more tests and let you know.
Regards
Andreas
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