You can assign a different management class to full and differentials. I have defined them to different tape storage pools.
One policy domain with multiple management class define backup node emcnode /vfs mode=full wait=yes mgmt=full-class backup node emcnode /vfs mode=DIFFerential wait=yes mgmt=diff-class If an old full dump expires, all differentials that depends on it will also expire. Differentials can expire without affecting the full dump. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Prather, Wanda Sent: Wednesday, May 04, 2011 1:24 PM To: ADSM-L@VM.MARIST.EDU Subject: Policy for NDMP dumps Have a customer where we have successfully configured and run NDMP full dumps of an EMC NAS via TSM, to a storage pool with format=CELERRA (it's an EMC NAS head). Now the amount of data has grown so that we would like to run differentials instead of fulls. Looks to me like there is no way to assign a different mgmt. class to NDMP differentials than to fulls, is that correct? Also, I found in the doc that these options are ignored in the backup copy group definition: Frequency Mode Retain Only Versions Serialization Versions Data Deleted Does TSM know not to remove a differential NDMP backup if the full still exists? Wanda Prather | Senior Technical Specialist | wprat...@icfi.com<mailto:wprat...@icfi.com> | www.jasi.com<www.jasi.com%20> ICF Jacob & Sundstrom | 401 E. Pratt St, Suite 2214, Baltimore, MD 21202 | 410.539.1135
