jam3s

There is no point in using SAS drives for file servers because your 1GBps is the bottleneck. SAS drives are only normally used in high I/O applications such as email servers. I believe your on the right lines with the SAN, check out the EMC AX4. I would look at VMware ESX with vmotion if you implement a SAN. backup should also be a lot less painful if you attach a fiber channel tape auto loader to your SAN. Network have you segmented your LAN using VLAN and implemented redundant links?

We bought Qwizdom a while ago and have had alot of dot net errors!!!!!! buggy software as well as dodgy handsets that dont always connect first time!