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Re: [Bacula-devel] Feature request: multiple media types per storage device


I believe that in version 2.2.x part of what you want may be implemented.  I 
have never tested it, but the 2.2.x SD should accept different Media Types 
within an Autochanger.  It will, however, only permit one media type per 
drive and does not have the concept of read-only. 



On Thursday 17 January 2008 14:49, Frank Sweetser wrote:
> Item: Allow configuration of multiple media type capabilities per storage
> device
> Date: 17 January 2008
> Origin: Frank Sweetser <fs@xxxxxxx>
> What: Extend the media type configuration for storage devices from a single
> type to multiple types, including specifying that some are read-only.
> Why: As various storage types evolve, a single media type per storage
> device is no longer adequate.  For example, LTO-4 drives can read LTO-4,
> LTO-3, and LTO-2 tapes, but can only write to LTO-4 and LTO-3.  Lack of
> this information in a heterogeneous configuration could lead to failed
> backups if Bacula selects a non-writable tape from a library for a backup
> job.  Also, the only currently available workaround (lie to Bacula about
> the media type of some volumes) means that it's often not possible to
> generate an accurate volume inventory from the catalog.
> Notes: One simple way to implement this might be redefine the current
> 'Media Type' directive into a comma separated list, and add another 'Read
> Only Media Type' directive which lists the media types that device is
> capable of reading but not writing.  This should provide a backwards
> compatible way of extending the media type configuration.

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