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
> }
>


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