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 :-)
--
rgds
Stephen
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
