Bacula-users

Re: [Bacula-users] Configuring a fake autochanger for a standalone tape drive in 9.0.2

2017-08-01 16:02:27
Subject: Re: [Bacula-users] Configuring a fake autochanger for a standalone tape drive in 9.0.2
From: Phil Stracchino <phils AT caerllewys DOT net>
To: Heitor Faria <heitor AT bacula.com DOT br>, Kern Sibbald <kern AT sibbald DOT com>
Date: Tue, 1 Aug 2017 16:01:17 -0400
On 08/01/17 15:50, Heitor Faria wrote:
> 
>> Hello Phil,
> 
> Hello, Kern, Phill,
> 
>> There should be no difference in how Bacula handles tapes between 7.4.7
>> and 9.0.x.  If there is I would suggest that you carefully document it
>> in a way that I can "see" the problem and easily reproduce it so that I
>> can fix it.  mtx-changer will *not* work unless you have an
>> autochanger.  There is no fake autochanger for tapes.  There are two
>> types of "fake" autochangers for Disks.  The first one is something like
>> mhvtl that is a program that simulates in detail and autochanger.  The
>> second is the Bacula virtual disk autochanger.
>>
>> If you have a real stand-alone tape drive, I personally know of no way
>> to make it work with mtx, and if Bacula does not work with it, I will be
>> happy to work on fixing it, but only if it is clearly documented in a
>> detailed but very concise way.
> 
> I think Phil refers to this is script 
> <http://bacula.us/manual-tape-drive-automation/>.
> I documented it many years ago. This is the original thread 
> <http://bacula.10910.n7.nabble.com/automount-with-single-non-autoloader-drive-td28536.html>.
> I'm not sure who was the original poster. I will try to find it now.


This looks like an automation-for-convenience issue.  The problem I
found was that I could neither mount nor unmount tapes AT ALL while the
SD was running.  The only way I could unmount a tape was to stop the SD
and use mt.  The only way I could mount one was to have it already
loaded in the drive before starting the SD.  Needless to say, this makes
jobs that span multiple tapes impossible.


-- 
  Phil Stracchino
  Babylon Communications
  phils AT caerllewys DOT net
  phil AT co.ordinate DOT org
  Landline: +1.603.293.8485
  Mobile:   +1.603.998.6958

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