Spare parts, yes. Spare servers.....
by Chris Josephes
I run many, many active-passive server pairs. That is, effectively, a spare server. I also run setups much like this with four running servers and a fifth just in case one of the others dies, we need to test something quickly, or whatever.
|With blades, usually you're using some sort of SAN or shared storage, and they tend to die quite often. In that case keeping them around is a good thing(tm), especially with the management features that's availiable on them.|