Storage pool shows UP in the GUI, but DOWN at the command line in Linux on the master.
Here is an example of job details:
7/23/2014 18:40:00 - Info nbjm (pid=5732) starting backup job (jobid=1429726) for client ncrowap01, policy ar_row_win_nt, schedule frq-inc
07/23/2014 18:40:00 - Info nbjm (pid=5732) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=1429726, request id:{A93CD160-12C2-11E4-BD56-5364D264E16A})
07/23/2014 18:40:00 - requesting resource BHM_MSDP
07/23/2014 18:40:00 - requesting resource alxaptb07xs.NBU_CLIENT.MAXJOBS.ncrowap01
07/23/2014 18:40:00 - requesting resource alxaptb07xs.NBU_POLICY.MAXJOBS.ar_row_win_nt
07/23/2014 18:40:00 - Error nbjm (pid=5732) NBU status: 2106, EMM status: Storage Server is down or unavailable
Disk storage server is down (2106)
None of the articles I found seem to apply.