Did you have some sort of licensing issue or change?    Eg if the right
number of stornode enablers were not around for a while it may have put
the node into that state and it needed manual steps to re-enable...

Have you got the RAP log enabled?   If you do, have a look in that for
clues. 

>From your log messages its clear you got some version of 7.3+   is it up
to 7.3.3 yet?

> -----Original Message-----
> From: EMC NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Francis Swasey
> Sent: Wednesday, 21 November 2007 2:59 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] Maximum Active Devices error

> The storage node was installed at the end of June and has 
> always had two 
> LTO-4 tape drives attached to it.  Those two tape drives are in a 10 
> drive Qualstar XLS jukebox.  The robotics are attached to the 
> NW Server, 
> the 10 drives are spread in pairs across five RHEL 4 storage nodes.
> 
> Over the weekend, this storage node wound up with two tapes 
> mounted and 
> then for an as yet undiscovered reason (ie, there is nothing 
> about any 
> failure in the /nsr/logs/daemon.log file on the NW server) 
> that decided 
> that it was not allowed to have active devices and those two 
> tapes that 
> were required by running savegrp commands became trapped.
> 
> During the triage process we had to shutdown the nsr 
> processes on this 
> storage node to free the tapes, and of course it is working 
> now -- but 
> with no assurance it will not happen again since no one knows why it 
> happened to begin with.
> 
> Yes, the nsrmmd processes were running (I would have been 
> paged by our 
> nagios monitoring system had the nsr processes not been running).
> 
> The daemon.log file contains nothing that relates to this 
> storage node 
> having any failure.  The tapes were loaded into the drives on 
> Saturday, 
> and Monday morning, the following was recorded in the NW 
> server's daemon.log
> 
> 11/19/07 04:37:14 nsrd: [Jukebox `Qualstar XLS', operation 246]. 
> Initiated operation `/usr/sbin/nsrjb -s ozzie.uvm.edu -l -f 
> rd=stornode8.uvm.edu:/dev/nst1 UVM.5073'.
> 
> 11/19/07 04:37:17 nsrd: [Jukebox `Qualstar XLS', operation # 
> 246]. Slot 
> `152' is loaded into unavailable device 
> `rd=stornode7.uvm.edu:/dev/nst0'. Reached the maximum number 
> of active 
> devices on storage node.
> 
> 11/19/07 04:37:19 nsrd: [Jukebox `Qualstar XLS', operation # 246]. 
> Finished with status: failed
> 
> UVM.5073 was one of the two tapes stuck in stornode7's tape drives.
> 
> -- 
> Frank Swasey                    | http://www.uvm.edu/~fcs
> Sr Systems Administrator        | Always remember: You are UNIQUE,
> University of Vermont           |    just like everyone else.
>    "I am not young enough to know everything." - Oscar Wilde 
> (1854-1900)

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