My reading of that technote is that the *first* backup will include all 
allocated space rather than just the used space; but that subsequent backups 
will use CBT and be true incrementals (and the extra allocated space will all 
be empty, so it should compress or dedup out).

If you are getting full backups on subsequent runs, I think you should open a 
PMR.
Something else is wrong.


Wanda Prather
TSM Consultant
ICF International Enterprise and Cybersecurity Systems Division



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Lee, Gary
Sent: Thursday, January 15, 2015 9:12 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] tsm for ve, nfs datastores and cbt

We are running vmware 5.1, using tsm for ve 6.4.2, and using nfs data stores.
It appears that change block tracking does not work with tsm for ve on nfs data 
stores.
This is forcing full backups every night.
Our environment is currently over 14 tB and growing.
With this limitation, we will not be able to continue using tsm for ve.

Have any on the list encountered this situation, and if so, have you found a 
work around?

Further information is here.
http://www-01.ibm.com/support/docview.wss?uid=swg21681916