Suitable UPS for 2 servers, a NAS and a Switch

obuk2k

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Jul 4, 2010
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Hi Everyone

My Company needs to purchase a rackmountable UPS to house

2 x HP ProLiant DL320e Gen8 v2 servers (54w to 120w under load per server)

1 x Synology DS 1813+ NAS (75W on access, 34W in hibernation)

1 x Netgear ProSafe GS724T Switch (21.5W)

idle power draw = 197W

half load power draw = 254W

total full load power drain = 411W

The servers don't have serial ports so we would need to use either USB and a network shutdown agent on the server that isn't directly connected on the other server or maybe purchase a addon network card for the UPS to send the shutdown signals directly across the network (do these work well ?)

Do you any of you wise IT sages have any opinions on these as a suitable candidate or in general ?

I would like something that would cover our current setup and also provide room for extra expansion.

http://www.amazon.co.uk/CyberPower-OR1000LCDRM1U-Rackmount-Uninterruptible-Supply/dp/B001R13X6O/ref=....

http://www.amazon.co.uk/Tripp-Lite-2200VA-Rackmount-SmartPro/dp/B000QRV45W/ref=sr_1_3?s=computers&am....

http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SMT750RMI2U&total_watts....

also do you know if there are many differences between brands (e.g. build quality or software provided?) or anything else you think I should consider.

Thanks in advance 

Michael
 
Hi

Do you want a safe shutdown if power fails ?
(run time not important)

If not how long to you want to run on UPS battery?
(affects rating and how big the batteries are)

Finally you need assurance that one UPS can send a shutdown signal to multiple servers.

In the old days we had one ups per server using rs232 serial ports for signaling which are rarely found nowdays.

APC is a well known brand now owned by Schneider Electric.

regards
Mike Barnes