We also use SnapManager for backups and restores and clones. And Document Server volume snaps.

We now find that when the databases are frozen it may take several minutes for the snapshot to complete. We do have quite a few databases on the LUN. In fact about 90 databases. (Before any guffawing we have no choice but to use SnapManager and we inherited the applications as is.).

I am tending towards what has been written - ie 25 to 35 db per LUN. Now we also have some big indexes and I was tending towards putting the indexes onto their own LUN.

Any thoughts