We're in the process of upgrading our ''ifs'' AFS fileservers with the hardware that used to make up HFS8 & HFS9. These are Dell 2650 servers with direct-attached PowerVault arrays.
This upgrade moves us away from the home-built Kingston drive arrays that have been used in the past, doubles our IFS storage capacity, and moves to a faster hardware platform. (the old IFS servers consisted of 2 sun Netra T1 machines, and a home-built Linux box)
The new "ifs2" is currently online, and we're bringing online the new "ifs1" online right now as "ifs5".