For data volumes, there is no 1 MB overhead.

You asked for 200 MB, and that is what you got!

   200 MB * 1,048,576 Bytes/MB = 209,715,200 Bytes

Isn't this the amount of space it says it allocated?

Regards,

Andy

Andy Raibeck
IBM Software Group
Tivoli Storage Manager Client Development
Internal Notes e-mail: Andrew Raibeck/Tucson/IBM@IBMUS
Internet e-mail: storman AT us.ibm DOT com

The only dumb question is the one that goes unasked.
The command line is your friend.
"Good enough" is the enemy of excellence.




"Malbrough, Demetrius" <DMalbrough AT TTIINC DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
11/21/2001 09:26
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        Re: dsmfmt question



It does require a 1MB overhead! e.g.

root@ / > dsmfmt -m -data /tsm/stgpool/backup1 200

AIX Server DSMFMT Extent/Volume Formatting Program Licensed Materials -
Property of IBM 5697-TSM (C) Copyright IBM Corporation 1990, 1997.  All
rights reserved. U.S. Government Users Restricted Rights - Use,
duplication
or disclosure restricted by GSA ADP Schedule Contract with IBM
Corporation.

Allocated space for /tsm/stgpool/backup1: 209715200 bytes

Calculation:

200MB X 1024bytes               = 204,800 bytes
204,800 bytes X 1024bytes       =2.0971520 512-Blocks

Thanks,

Demetrius