Good question. Zmanda seems to be a popular open source solution with
commercial licenses and support available. We try to keep the Best Practices
Guide up to date on this topic:
http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Using_ZFS_With_Enterprise_Backup_Solutions
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Hi
We have a number of customers (~150) that have a single Sun server with
directly attached storage and directly attached tape drive/library. These
servers are currently running UFS, but we are looking at deploying ZFS in
future builds.
At present, we backup the server to the local tape drive