Hi,

Thanks for your reply. I have changed my bacula-sd.conf configuration since a couple of weeks, and removed the mount.sh and umount.sh scripts. So far I have not received the tape error anymore.

I did run the btape test as suggested, and seems like I have more modification to make. Let me know your thoughts.

# btape test output:
https://dpaste.de/0Qme/raw

# Current bacula-sd.conf:
Device {
Name = ibm-dds6
Media Type = DDS6
Device Type = tape
Archive Device = /dev/nst0
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = no;
Hardware End of Medium = yes;
Two EOF = Yes
RemovableMedia = yes;
RandomAccess = no;
}

# mt -f /dev/nst0 status
drive type = Generic SCSI-2 tape
drive status = 1207959552
sense key error = 0
residue count = 0
file number = 0
block number = 0
Tape block size 0 bytes. Density code 0x48 (DAT160).
Soft error count since last status=0
General status bits on (41010000):
 BOT ONLINE IM_REP_EN

# tapeinfo -f /dev/nst0
Product Type: Tape Drive
Vendor ID: 'IBM     '
Product ID: 'DDS Gen6        '
Revision: 'WU04'
Attached Changer API: No
SerialNumber: 'HU14246VM2'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 0
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: Not Loaded
Density Code: 0x48
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x20
DeCompType: 0x0
BOP: yes
Block Position: 0
Partition 0 Remaining Kbytes: 86814000
Partition 0 Size in Kbytes: 86814000
ActivePartition: 0
EarlyWarningSize: 0
NumPartitions: 0
MaxPartitions: 1

Thanks.

On Fri, Sep 23, 2016 at 11:39 AM, Marcin Haba <ganiuszka AT gmail DOT com> wrote:

Hello Gi Dot,

Could you try to run test command in btape tool and past here output
from this test?

The output text from the test command in btape can also advise adding
some directives to your Bacula config (BSF at EOM = yes/no ...and
others).

I have also question if you use "mt" or "mt-st" program to manage
magnetic tape drive? Your IBM DAT 160 works on SCSI bus (it is SAS)
and that is OK, because Bacula supports SCSI tape drives, of course. I
am asking about it because to tape drives on SCSI bus better is use
mt-st (magnetic tape control tool for SCSI tape driver) instead of mt
(standard magnetic tape control tool) to use proper ioctls for your
SCSI tape driver.

Thanks in advance for sending btape test output here.

Best regards.
Marcin Haba (gani)

On 5 September 2016 at 11:19, Gi Dot <gadidot AT gmail DOT com> wrote:
> Hi all,
>
> I am using IBM DAT 160 media with bacula, and I always get a tape error
> after a successful backup job. There were a lot of times that the tapes
> snapped as well. At first I thought the tapes are just defect, but the error
> occured so frequent that I started to doubt my bacula configuration.
>
> I used to get this error in the logs, but couldn't find similar error in
> recent logs:
>
> 05-May 15:54 hpsf-sd JobId 130: Volume "set1-w" previously written, moving
> to end of data.
> 05-May 15:54 hpsf-sd JobId 130: Error: Unable to position to end of data on
> device "ibm-dds6" (/dev/nst0): ERR=dev.c:776 ioct
> l MTEOM error on "ibm-dds6" (/dev/nst0). ERR=Input/output error.
>
> 05-May 15:54 hpsf-sd JobId 130: Marking Volume "set1-w" in Error in Catalog.
>
>
> Whenever this occured, I can only relabel the tape in order to reuse it. I
> hope anyone can have a look on the information of the tape settings and
> bacula configuration provided below, and advise if there is anything that is
> not right.
>
> # tapeinfo -f /dev/nst0
> Product Type: Tape Drive
> Vendor ID: 'IBM     '
> Product ID: 'DDS Gen6        '
> Revision: 'WU04'
> Attached Changer API: No
> SerialNumber: 'HU14086PJM'
> MinBlock: 1
> MaxBlock: 16777215
> SCSI ID: 0
> SCSI LUN: 0
> Ready: yes
> BufferedMode: yes
> Medium Type: Not Loaded
> Density Code: 0x48
> BlockSize: 0
> DataCompEnabled: yes
> DataCompCapable: yes
> DataDeCompEnabled: yes
> CompType: 0x20
> DeCompType: 0x0
> BOP: yes
> Block Position: 0
> Partition 0 Remaining Kbytes: 86814000
> Partition 0 Size in Kbytes: 86814000
> ActivePartition: 0
> EarlyWarningSize: 0
> NumPartitions: 0
> MaxPartitions: 1
>
>
> # mt -f /dev/nst0 status
> drive type = Generic SCSI-2 tape
> drive status = 1207959552
> sense key error = 0
> residue count = 0
> file number = 0
> block number = 0
> Tape block size 0 bytes. Density code 0x48 (DAT160).
> Soft error count since last status=0
> General status bits on (41010000):
>  BOT ONLINE IM_REP_E
>
>
> # bacula-sd.conf:
> Device {
>   Name = ibm-dds6
>   Media Type = DDS6
>   Device Type = tape
>   Archive Device = /dev/nst0
>   AlwaysOpen = yes;
>   Hardware End of Medium = no;
> # Two EOF = Yes
>   RemovableMedia = yes;
>   RandomAccess = no;
> }
>
>
> Before running the first job, mount script will be executed (run before
> job). After running the last job, umount script will be executed (run after
> job).
>
> # cat mount.sh
> #!/bin/sh
>
> /usr/sbin/bconsole -c /etc/bacula/bconsole.conf <<EOF
> mount storage=TapeDrive
> EOF
>
>
> # cat umount.sh
> #!/bin/sh
>
> /bin/sleep 60
>
> /usr/sbin/bconsole -c /etc/bacula/bconsole.conf <<EOF
> umount storage=TapeDrive
> EOF
>
> More from bacula.log:
> https://dpaste.de/uAYF/raw
>
>
>
>
>

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>
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