[Bacula-users] ERR=Input/output error / only some times

[Stefan L. <ste...@ma...>]

Hi all,

I have a strange behavior when I run btape.
The test abborts at different positions. Sometimes it runs completely. 
Sometimes it stops after the rewind or after the "Got EOF on tape".
I have no idea where I can search what's wrong. The strange thing is, 
that I was able to write (bconsole / run a job) on two tapes.
After writing I tried to restore the job, but the restore failed. So I 
started from beginning with testing my Autoloader.
And guess what......... It failed.
If I write an EOF manually (mt -f /dev/nst0 weof), the the test will 
work one time. The second time it fails again.
Is this normal?

I start btape with the following syntax:
btape -c /dev/bacula/bacula-sd.conf -v -d 6 /dev/nst0

Here ist the btape output:
btape: btape.c:831 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:505 Wrote 1 EOF to "Drive-1" (/dev/nst0)
btape: btape.c:847 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:505 Wrote 1 EOF to "Drive-1" (/dev/nst0)
btape: btape.c:856 Rewind OK.
1000 blocks re-read correctly.
Got EOF on tape.

Here is the Error Message:
btape: btape.c:856 Rewind OK.
13-Oct 15:08 btape JobId 0: Error: block.c:999 Read error on fd=3 at 
file:blk 0:976 on device "Drive-1" (/dev/nst0). ERR=Input/output error.
btape: btape.c:868 Read block 977 failed! ERR=Input/output error

Next try, same result:
13-Oct 16:33 btape JobId 0: Error: block.c:999 Read error on fd=3 at 
file:blk 1:897 on device "Drive-1" (/dev/nst0). ERR=Input/output error.
btape: btape.c:868 Read block 1898 failed! ERR=Input/output error

Can you please help me, where I can start to investigate?

Thanks,
Stefan

-- 
Stefan Lubitz
System Administrator
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