On Tue, May 29, 2007 at 07:33:39PM +0200, Euroka wrote:
I want to buy a UPS wfor a PE2800 but I'm mnot sure wich one to choose. is 1000 VA enough or do I need the 1500 VA version?
The size you want depends on two things: 1) Must be powerful enough to drive all the equipment you want 2) How long you want to survive on battery
I have a 1500VA UPS powering the following equipment
Pentium D dual core 3Ghz, 5 hard disks, 2Gb RAM Pentium 4 2.4Ghz, 2 hard disks, 1 Gb RAM Pentium III 800Mhz, 4 hard disks, 1Gb RAM AMD 2500, 1 hard disk, 1Gb RAM Celeron 1200, 1 hard disk, 512Mb RAM Sun Ultra 5, 1 hard disk, 256 RAM 19" LCD display router, cable-modem, switch etc etc KVM
The monitor is currently in standby mode. "apcaccess" says LOADPCT : 70.0 Percent Load Capacity BCHARGE : 100.0 Percent TIMELEFT : 7.2 Minutes
Basically I'm using it to protect me from momentary outages, not from long term failures. 7 minutes is long enough for APCupsd to shutdown the machines.
Hmm... I might need to get a second one, soon! Or else get my act together and _use_ the Pentium D machine and virtualise some of the others :-)