I have, actualy, 2 SNAP 520 and one more on the way
4x 250 gb (1 tb) GOS 4.4
4x 250 gb (1tb) GOS 5.2 (on the way)
4x 500 gb (2 tb) GOS 4.1
I have ordered an extra Snap 520 on EBAY as beta test.
Because we have upgrade our domain and DHCP controler last summer and we have got some issue with Windows server 2008 R2
Also, I have ordered an 1 years services entliment with overland to install the last GOS on all SNAP (this is why I have buy a beta test). I hope it will work fine with thenew domain controler.
In the same time I will try to upgrade 2 of them at 8tb and kep the tird one for spare parts
We are running the 2 first snap for the last 6 six years and until server 2008 R2, we never got a problem with them. Espacialy if I compare with IBM, we are running. There are realy low cost of maintenance (compare wwith the IBM)
Sorry for my bad english