mminfo -q "volume=$NameOfAFT" -r "%used"

In my case, I have a chunk of space in an old school File Type device mounted 
as /diskpool.  The 'volume' name is DBMIDATA.001, and it reports fine via this 
command.  You could also do a scripted compare/contrast with a df output from 
the SN.  If those AFT devices remain constant in max size, then you could 
generate the df off the SN and pass it over to the master as a PERM list to 
compare against.  Then you could use the following code to get the realtime 
total size in bytes on the AFT:
         mminfo -av -q "volume=$NameOfAFT" -r "totalsize" | awk 
'{sum=sum+$0};END{print sum}'

Comparing that number to the available size, your script could either A) print 
used size vs max size (akin to a df output) or B) print 'max size minus used 
size = available size'...if you wanted to do the math in the script.

If all you need is a realtime "how close am I to filling up my AFT", then the 
mminfo w/ %used is the easier, quicker answer.  Hope this helps.

--Ted



-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of Teresa Biehler
Sent: Thursday, May 22, 2008 7:40 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Advanced file type devices on storage nodes



We've got a storage node with several advanced file type devices.  We
have a script that will clone these backups to tape so that we can take
them offsite.  We'd like to keep the disk copies as long as possible.
To do this, we'd like to automatically check how much space is still
available on these disk devices.  How can we do this from the NW server?




I know NW does this somehow because one of the criteria for staging is
percentage full.  How does the NW server determine that the disk device
is a certain percentage full?



Thanks.

Teresa


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