[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Bacula-devel] request: Allow tape drives to be associated with autochanger resource on different host


"John Drescher" <drescherjm@xxxxxxxxx> writes:
> Kjetil Torgrim Homme <kjetilho@xxxxxxxxx> wrote:
>> "Shad L. Lords" <slords@xxxxxxxxxxxx> writes:
>>> Item  1: Allow tape drives to be associated with autochanger
>>>           resource on different host
>>>     Note: A single robot controls multiple drives but is only connected
>>>           to one machine.  It is currently possible to work around
>>>           things by having remote hosts issue mtx commands over ssh but
>>>           nothing prevents multiple mtx commands from being issued at
>>>           the same time.
>>
>> why not use something like
>>
>>   ssh robotmaster "flock /var/run/mtx.lock mtx ..."
>>
>> as your tapechanger command?  flock will wait until it gets a lock on
>> the file, so there will never be two mtx processes running
>> simultaneously.

> The reason is that he wants to split up his tape multi drive changer
> so that the drives are on more than 1 machine to allow for higher
> performance but at the same time he wants to have 1 changer resource
> in bacula and send the jobs to the 1 changer.

Well, he didn't say so, IMHO.  You think he wants to schedule jobs
against a single Storage naming the tape changer, and have Bacula
figure out which SD to talk to?  That's quite different from today's
architecture, I think.

-- 
regards,
Kjetil T.


-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Bacula-devel mailing list
Bacula-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/bacula-devel


This mailing list archive is a service of Copilotco.