I have a question for the group.  Has anyone ever issued an mt -f device
status command while a backup was running?  If so, what happened?

Here is what happened to us.  We have several Tru64 5.1b, dedicated
storage nodes attached to a Solaris 8 Networker server.  We have 8
tape drives in an Stk L700 tape library, fibre-attached to each.

On the first node, we had a backup running.

On the second node, someone issued an mt -f status command on one of the
drives in the library which was currently being written to by the first
node.

Immediately afterwards, Networker reported io errors on the tape drive
and the backup aborted.

Has anyone ever seen this happen in their environment, and if so, what
if anything was done to prevent it from occuring in the future?

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