We have a NetApp F720 doing both NFS and CIFS using mixed mode security.
It has 256 megs of ram. During parts of the day the CPU and RAM spike to %100 utilization. We do a lot of sendmail, windows media, apache and IIS traffic over the filer.
 
I have two questions:
1. Is there a way we can add more ram, perhaps 512 or a gig? The docs say we are maxxed out with 256.
2. Is it possible that the extra cpu overhead that provides the NFS/CIFS user mapping is causing much of the ram and cpu starvation? Perhaps going to a simpler security model would offload a lot of CPU cycles.
 
Any suggestions would be appreciated..
 
Jean-Christophe Smith
VitalStream
jsmith@vitalstream.com