Is it possible to specify them as two autochangers in the SD file and
then have the DIR file autoswitch between them as needed?

Kern Sibbald wrote:
Egads, the things people dream up !  :-)

It *just* might work for you providing no one else is using your autochangers, and providing you do several things:

1. Remove the Changer Device from the AutoChanger resource, and keep the correct one in each Device record. This is probably not necessary since if I remember right the Device takes precedence, but it would be better to remove it.

2. Fiddle your copy of mtx-changer so that by looking at the /dev/sg0/1, tricks Bacula into thinking it is dealing with a single autochanger, by doing several things (I may leave out some):
  a. It must return 20 for the number of Slots rather than 10
b. It will have to do hand springs to remap all slot numbers greater than 10 to the range 1-10 and vice-versa both incoming and outcoming in a number of places in the mtx-changer script. This will be a real pain. Bacula needs to think the slots are numbered 1-20, but each changer must see 1-10.

You could get a lot more through-put by using two different autochangers and multiple simultaneous jobs. Doing what you want to do would seriously throttle the overall capability.

On Wednesday 30 November 2005 15:54, Michael Joyner wrote:
help!

I have two 10 slots autochangers and I am trying to configure them to
run as a single autochanger.

Does anyone have any pointers?

This is my current config file:




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