"Shad L. Lords" <slords AT lordsfam DOT net> 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.
-- 
regards,
Kjetil T.



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