I'm noticing high read latency numbers for NFS on my filer via System Manager 1.1. I'm fairly new to the NetApp world, so i really don't know what to check to figure out what's causing the high latency. Any help would greatly be appreciated.
We have a clustered 3140 with 5 shelves of 450GB FC 15k drives and a shelf of 1TB SATA drives. One controller has a single aggregate of FC drives (33 disks) while the other controller has two aggregates, one with all SATA disks and the other with the remaining FC disks. This high read latency appears on both controllers
We are using this SAN primarily for virtualization (vSphere). Both protocols are currently being used, NFS and FC. The green graphs in the picture is for NFS.