I'm not aware of any change in TSM architecture which allows querying actual client file sizes as stored in TSM server storage, from the server. The actual sizes can be obtained via 'dsmc Query Backup' client queries (which a server administrator may be able to perform via Virtualnodename, if the client password is known, and a like client platform is available). Another, ungainly, approach is to scan the client backup logs for sizes.
File size is one of the file system attributes which is accessible to the TSM client because it is programmed to understand the nuances of the various file systems it handles. To appreciate the difficulty of having the server understand client file system particulars, consider the problems of a non-Unicode server trying to understand and report even the file system name of a Unicode client. Richard Sims
