Need some help from folks doing "external" NDMP dumps, where TSM triggers the 
dump but it's done by the NAS device across the fibre to pool defined as 
TYPE=NDMPDUMP, not a standard TSM storage pool.

Have a customer installing an EMC (VNX)  NAS which will store multiple millions 
of .pdf files.  The data change rate is very low, but can't back up via the 
CIFS mount using the regular client, too many files to scan the filesystem.  
And VNX doesn't support snapdiff.

So the plan is to have the VNX do full and diff dumps under TSM control.
Customer wants monthly fulls + daily diffs between, and wants to be able to go 
back a year.

My experience is with NDMP via TCPIP in a normal TSM storage pool, but the 
thing I see there is that when you do a new full, the previous diffs don't 
expire.

There's no reclaim for a pool defined as TYPE-NDMPDUMP, so how do you handle 
this without keeping 365 cartridges tied up in the vault?  Is there a good way 
to blow way those "in between" diffs?

Thanks and Happy New Year

Wanda (NDMP is Evil) P


Wanda Prather  |  Senior Technical Specialist  | Wanda.Prather AT icfi DOT com  
|  www.icfi.com
ICF International  | 401 E. Pratt St, Suite 2214, Baltimore, MD 21202 | 
410.539.1135 (o)