On 25/03/2020 14:15, Skylar Thompson wrote:
We execute mmbackup via a regular TSM client schedule with an incremental
action, with a virtualmountpoint set to an empty, local "canary" directory.
mmbackup runs as a preschedule command, and the client -domain parameter is
set only to backup the canary directory. dsmc will backup the canary
directory as a filespace only if mmbackup succeeds (exits with 0). We can
then monitor the canary and infer the status of the associated GPFS
filespace or fileset.

I prefer this approach I think than grovelling around in log files that could easily break on an update. Though there is a better approach which in my view IBM should be using already in mmbackup.

It came to me this afternoon that one could use the TSM API for this. After a bit of Googling I find there is an API call dsmUpdateFS, which allows you to update the filespace information on the TSM server.

Fields that you can update include


Information on the API call here


How do we submit this as a feature request again? That said in my view it's a bug in mmbackup. The latest in a very long line stretching back well over a decade that make mmbackup less than production ready rather than a feature request :-)

I feel a breakout of a text editor and some C code coming on in the meantime.


Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG
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