We've got an F740 with 3 fully populated FC9 shelves, 36Gb disks, 432GB used (30 free).

In the last couple of months the CPU has been getting higher and higher utilization. We've only got 512MB of RAM in there. Would an upgrade (to 1GB) be advisable? CPU isn't upgradable, is it?

If we're pegging an F740 like this, and have 0.5TB of data now.... assuming a growth to 2TB in the next 3 years, what sort of box should we be looking at for a replacement (need to get the bean counters prepared)?

thanks!

johnS