Hmm at 66.5% you're using more like 7,820MB of DB space. With 22,760,941
files that's more like (7,820,000,000 / 22,760,941) 343 bytes per file. The
TSM admin guide says for each backup version you calculate 400-600 bytes
(they use 600) and for each copy pool 100-200 bytes. So with their numbers
it's more like 500-800 bytes per file vs your "real world" 343 bytes.

If I calculate with 343 bytes per file I get:

625,000,000 * 343 = 214,375,000,000 bytes = 214GB DB

Much smaller then 500GB but still very large.

All in all my question remains. How much can a single TSM server handle? Is
there a limit to DB size? Does performance degrade once the DB reaches a
certain size?

Gerald Wichmann
Sr. Systems Development Engineer
Zantaz, Inc.
925.598.3099 w
408.836.9062 c