
Originally Posted by
oetjmackey
We use Avamar product here at the State of Mn..It is a good product but it does have some issues with supporting new levels of operating systems, SQL database levels. What I am trying to say is TSM is usually faster at delivering a backup client that supports newer versions of SQL, Windows, that arrive on the market. The only other issue I have with it is that one datastore as EMC will call it can only handle so much data, and then you have to buy another, but I guess you can compare that too buying more tape and adding an expansion unit onto your library. TSM can definitely hold more data before having to expand it to a new grid. But the dedup on Avamar is better than TSM because I have read TSM does not recommend dedup if you are pumping more than 3 TBs of data a night, not sure if that is true or not because our TSM environment does not use dedup.
I think TSM is the better product but I think since EMC has taken over Avamar it has made some strides. We have had avamar for 5 years One avamar grid only holds about 14 TB of dedup data, but I know EMC datastore might have increased that number. I think dedup is overrated for database backup but who knows its based on the data you are backing up. No matter what I have never seen this Avamar product be able to backup to tape. We do have a primary and a remote site but it is all disk based.
TSM has better documentation, and better scalibility.