You need to use the information/instructions from your changer vendor and
define your cleaning tape slot(s).  I personally never use the backup
software to manage the need for cleaning tape drives.  As this sounds like
a new set up, why are you trying to clean your tape drive?  Is it used and
unknown equipment?  These are rhetorical questions - no reply necessary.
LTO-5 technology rarely ever needs to be cleaned - and I mean rarely.  Old
carbon tapes were a different issue and required regular cleaning.  I must
have 30 cleaning tapes on hand.  Maybe one was used once or twice with 7
drives and many TB of data.  Also, your environment where the changer
lives is a factor on frequency.  If it is a non-computer room environment,
then perhaps the need is a little more often.  The tape drive should
inform the changer that it needs cleaning and the changer should handle
the request.  I have seen this with Dell, Quantum, and SpectraLogic
changers - small, medium, and large changers.

Patti Clark
Linux System Administrator
Research and Development Systems Support Oak Ridge National Laboratory


On 5/29/13 7:37 PM, "Owner" <dmalloc AT gmail DOT com> wrote:

>Hello everybody.
>
>Thank you for having me.
>I have searched the archives and found many references to timing and
>looking at the script itself, but I am a bit stumped and maybe your
>expert view can help.
>
>OS: Centos 6.4
>Bacula:
>bacula-director-mysql-5.0.0-12.el6.x86_64
>bacula-console-5.0.0-12.el6.x86_64
>bacula-common-5.0.0-12.el6.x86_64
>bacula-storage-mysql-5.0.0-12.el6.x86_64
>bacula-director-common-5.0.0-12.el6.x86_64
>bacula-client-5.0.0-12.el6.x86_64
>bacula-storage-common-5.0.0-12.el6.x86_64
>mtx:
>mtx-1.3.12-5.el6.x86_64
>mt:
>mt-st-1.1-5.el6.x86_64
>Mysql:
>mysql-server-5.1.69-1.el6_4.x86_64 (and supporting)
>
>All services come up as expected, bconsole status all shows that all is
>well.
>
>The tape loaders are Two IBM TS2900 with LT05 drive.
>
>Executing
>./mtx-changer /dev/sg2 listall /dev/nst0 0
>lists all 8 slots as expected with the drive being in slot 0
>
>(I had a tape already in the drive)
>Executing
>./mtx-changer /dev/sg2 unload 3 /dev/nst0 0
>results in:
>Unloading drive 0 into Storage Element 3...done
>and mtx-changer successfully exits on the command line.
>
>Executing
>./mtx-changer /dev/sg2 load 3 /dev/nst0 0
>results in:
>Loading media from Storage Element 3 into drive 0...done
>and mtx-changer successfully exits on the command line.
>
>For all those operations the debug in mtx.log reads
>20130529-18:41:58 Parms: /dev/sg2 listall /dev/nst0 0
>20130529-18:41:58 Doing mtx -f /dev/sg2 -- to list all
>
>20130529-18:42:31 Parms: /dev/sg2 unload 3 /dev/nst0 0
>20130529-18:42:31 Doing mtx -f /dev/sg2 unload 3 0
>
>20130529-18:45:45 Parms: /dev/sg2 load 3 /dev/nst0 0
>20130529-18:45:45 Doing mtx -f /dev/sg2 load 3 0
>
>mtx-changer.conf has only one variable set which is:
>load_sleep=10
>
>Executing bconsole I get the following status:
>(for storage)
>Device status:
>Autochanger "Autochanger" with devices:
>   "TS2900server" (/dev/nst0)
>Device "backupstore" (/tmp) is not open.
>Device "TS2900server" (/dev/nst0) is not open.
>    Drive 0 status unknown.
>
>mtx.log shows (after bacula-dir startup)
>20130529-18:50:31 Parms: /dev/sg2 loaded 0 /dev/nst0 0
>20130529-18:50:31 Doing mtx -f /dev/sg2 0 -- to find what is loaded
>20130529-18:50:32 Parms: /dev/sg2 loaded 0 /dev/nst0 0
>20130529-18:50:32 Doing mtx -f /dev/sg2 0 -- to find what is loaded
>
>Since this is a fresh install with a cassette not yet catalogued I
>wanted to run:
>update slots scan
>that is when the problems start.
>Slot 1 has a cleaning tape
>
>The system starts executing the first load trying to load the first Tape
>into the drive, I can see it executing
>./mtx-changer /dev/sg2 load 1 /dev/nst0 0
>and after that is simply hangs until bconsole kills the command with a
>Signal 15.
>
>
>The same thing happens when mtx-changer is ran from the command line.
>It will load, say done and then hang until I ctrl+c it.
>It is as if mt cannot tell that the tape is ready when it is a cleaning
>tape and then just hangs. The debug log shows
>
>20130529-19:07:32 Device /dev/nst0 - not ready, retrying...
>
>
>update slots in bconsole produces output:
>3306 Issuing autochanger "slots" command.
>Device "Autochanger" has 7 slots.
>Connecting to Storage daemon tapestorage at backupibm.*.corp:9103 ...
>3306 Issuing autochanger "list" command.
>Volume "CLNU51L1" not found in catalog. Slot=1 InChanger set to zero.
>Volume "432CEUL5" not found in catalog. Slot=2 InChanger set to zero.
>Volume "434CEUL5" not found in catalog. Slot=3 InChanger set to zero.
>Volume "488CFAL5" not found in catalog. Slot=4 InChanger set to zero.
>
>So I am wondering if that is something anyone has experienced before.
>What else could I be doing to debug this?
>run mt status with a cleaning tape loaded versus a regular tape and
>compare the output?
>
>What would you suggest?
>Thank you!
>
>
>
>
>
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