Robert Arkiletian wrote: > On 3/10/08, nate <centos at linuxpowered.net> wrote: > > >> You can turn on write back caching if you have a UPS as well >> (provided your UPS is wired into your system for a graceful shutdown) >> > > Hopefully you have a redundant PS unit. Having a UPS is not going to > help if your PS fails. > > redundant power supplies connected to redundant UPS's. I've seen more UPS failures than I've ever had failed PSUs on proper server grade hardware.