We currently run NW65sp6, Symantec and CA Brightstor 11.1sp3.
Since we updated to NW65sp6 from NW60sp5, servers have been displaying messages like this frequently.

11-27-2008 7:13:53 pm: SERVER-5.70-3728
Severity = 0 Locus = 17 Class = 21
Server logical address space is running low. File Cache Maximum Size has been set to 2042626048.

I've edited bti.cfg files, and done other stuff with help from this forum and it's still happenning.

*Is SP8 better with memory issues than SP7?
*any known issues with Arcserve or symantec?

Please advise.