Just added Minimum Block Size = 262144 with the same result.  Trying a different block size now.

On 07/11/2014 10:19 AM, Brian Debelius wrote:

Centos 7 x86_64
Bacula 7.0.4
Tape HP Ultrium LTO-4

Hello,

I am testing out CentOS 7 and bacula 7.0.4.  Btape Test completes without error.  Btape Fill completes without error, but on its attempt to rewind and read the tape label it responds 'Could not reserve volume "TestVolume1" for append, because it will be read.'. Has anyone else seen this?

Wrote block=3120000, file,blk=156,138 VolBytes=812,641,943,552 rate=72.92 MB/s
10-Jul 19:01 btape JobId 0: End of Volume "TestVolume1" at 156:3366 on device "Tape" (/dev/nst0). Write of 262144 bytes got -1.
10-Jul 19:01 btape JobId 0: Re-read of last block succeeded.
btape: btape.c:2711-0 Last block at: 156:3365 this_dev_block_num=3366
btape: btape.c:2746-0 End of tape 156:0. Volume Bytes=813,488,144,384. Write rate = 72.84 MB/s
btape: btape.c:2316-0 Wrote 1000 blocks on second tape. Done.
Done writing 0 records ...
btape: btape.c:2385-0 Wrote state file last_block_num1=3365 last_block_num2=0
btape: btape.c:2400-0

19:01:59 Done filling tape at 156:0. Now beginning re-read of tape ...
btape: btape.c:2481-0 Enter do_unfill
10-Jul 19:02 btape JobId 0: Warning: acquire.c:276 Read acquire: vol_mgr.c:382 Could not reserve volume "TestVolume1" for append, because it will be read.
block.c:443 Read zero bytes Vol= at -1 on device "Tape" (/dev/nst0).
Mount Volume "TestVolume1" on device "Tape" (/dev/nst0) and press return when ready:

Bacula-sd.conf:

Device {
  Name = Tape
  Drive Index = 0
  Device Type = Tape
  Archive Device = /dev/nst0
  Automatic Mount = yes
  Removable Media = yes
  Random Access = no
  Media Type = Tape
  Autochanger = no
  Auto Select = yes
  Always Open = yes
  Maximum Block Size = 262144
  Maximum File Size = 4G
  Maximum Spool Size = 100G
  Maximum Job Spool Size = 20G
  Maximum Network Buffer Size = 65536
  Spool Directory = /tank/bacula-spool
}