Hello,From the error message printed by Bacula (in German) I would strongly 
suspect that something caused a reset on the drive or the auto changer.  This 
can happen if two processes are using the changer at the same time and someone 
is issuing a smartctl or another such program.I would recommend that you enable 
Bacula's TapeAlert code, which is not on by default.  It will keep a record of 
any tape alerts, which could help you track down the problem.I would also 
recommend that you do two cleanings of each drive.  One cleaning is not always 
sufficient (or more correctly said, one cleaning did not resolve a tape proble 
I had on an LTO-4 drve).Best regards,KernSent from my Samsung Galaxy smartphone.
-------- Original message --------From: Pierre Bernhardt 
<pie...@starcumulus.owl.de> Date: 3/14/20  04:54  (GMT+01:00) To: 
bacula-users@lists.sourceforge.net Subject: Re: [Bacula-users] Tape issue: less 
size than before for LTO-4 tapes Am 13.03.20 um 08:28 schrieb Pierre 
Bernhardt:> Am 10.03.20 um 20:27 schrieb Pierre Bernhardt:>> Write failed at 
block 8758373. stat=-1 ERR=Auf dem Gerät ist kein Speicherplatz mehr 
verfügbar>> btape: btape.c:411-0 Volume bytes=565.0 GB. Write rate = 25.08 
MB/s>> btape: btape.c:612-0 Wrote 1 EOF to "HP Ultrium 4-1" 
(/dev/tape/by-id/scsi-HU1914570A-nst)> > Thats very interesting. On the other 
drive which can store ~ 750-800 GiByte (drive 1)> pcp shows me for the btape 
test ~ 80 MByte/s:> > # Device         r/s     w/s  kb_r/s  kb_w/s   r_pct   
w_pct   o_pct    Rs/s   o_cnt> st0             0.00 1259.59       0   81258    
0.00   98.23   98.23    0.00    0.00> > So it looks really there is really an 
issue on the drive 0 or the connection path.> I will wait for the end of the 
both tests> (btape on drive 1 and backup test on drive 0)It's really dependend 
on the tape drive. With same tape on the other drive thebtape test will write 
many more data on this tape:Write failed at block 12611722. stat=-1 ERR=Auf dem 
Gerät ist kein Speicherplatz mehr verfügbarbtape: btape.c:411-0 Volume 
bytes=813.6 GB. Write rate = 79.21 MB/sbtape: btape.c:612-0 Wrote 1 EOF to "HP 
Ultrium 4-2" (/dev/tape/by-id/scsi-HU19145705-nst)The backup test shows me not 
the best:# Device         r/s     w/s  kb_r/s  kb_w/s   r_pct   w_pct   o_pct   
 Rs/s   o_cntst1             0.00  259.29       0   16727    0.00   79.75   
79.75    0.00    0.00st1             0.00  259.19       0   16721    0.00   
79.75   79.75    0.00    0.00…16 MByte/s is to less.And the backuptest shows me 
on drive 0 only a stored size of 475 MByte.I would like to check FC connection 
for lip resets, error stats and so on.I checked the "files" in 
/sys/class/fc_host/host?/statistics but all which couldhave a problem value 
shows me only 0x0 values.So my first guess is there is no really problem on the 
hba-drive-connections.I will now try to clean the drive with a fresh cleaning 
tape and use btapeagain for a test. I think I will not get big different 
result, but it'sa 
try.Cheers,Pierre_______________________________________________Bacula-users 
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