I own a server on which I plan to install FreeBSD 9.1 with ZFS.
Since this server stores all of my data and serves as NAS, I would like to avoid sudden shutdowns due to power outage. Even though I heard that ZFS can cope pretty well with power failures (if you have cache at least - which I don't), IMHO it'd be better not to rely on that alone.
Therefore I have to choose an UPS with good FreeBSD support in order to shut it down nicely in case power goes down for a long time.
I would like to put it in my (pseudo) 19'' rack in order to make better use of the space.
I was wondering if you could suggest me some UPS (with true sinewave output) with good FreeBSD support. Right now I was looking at:
These are about the only brands I can get around here (Europe). Another brand available is Online USV (German brand) but their rackmount UPS are kinda expensive.
I already owned a few APC UPSs (BackUPS Pro) and one failed on me (twice !). APC Support was very nice and a new unit was sent to me in less than 3 days.
That being said, APC support on GNU/Linux or FreeBSD seems to be lacking lately because of their Microlink protocol. Either I get an additionnal card (AP9620 or a Network Management card which is much more expensive), or I consider alternatives. There is a good availability of replacement batteries.
CyberPower offers their Powerpanel Linux version so there seem to be Linux support for their devices. Not sure if I could run it on FreeBSD in compatibility mode though. NUT doesn't seem to support [well] the PR* line of products (PR2200* is listed as "reverse engineered").
OPTI-UPS seem to offer "Double conversion" thus providing more filtering and a more stable voltage (see for instance here: http://www.tomshardware.com/reviews...00pfclcd-tripp-lite-smart1500slt,2785-12.html). This however heavily impacts on energy efficiency (even when there is no power outage). There is yet again a good availability of replacement batteries. Warranty only lasts 2 years though.
I personally would go with Cyberpower because of the lower price, but I'm still not sure about:
Thanks to anybody willing to help me make a good choice.
If you need further information, please ask.
Since this server stores all of my data and serves as NAS, I would like to avoid sudden shutdowns due to power outage. Even though I heard that ZFS can cope pretty well with power failures (if you have cache at least - which I don't), IMHO it'd be better not to rely on that alone.
Therefore I have to choose an UPS with good FreeBSD support in order to shut it down nicely in case power goes down for a long time.
I would like to put it in my (pseudo) 19'' rack in order to make better use of the space.
I was wondering if you could suggest me some UPS (with true sinewave output) with good FreeBSD support. Right now I was looking at:
- APC SMX1500RMI2U (~ 920$) + Legacy card AP9620 (~ 60$)
- CyberPower Professional Series PR1500ELCDRT2U (~ 670$)
- OPTI-UPS Durable Series DS1500B-RM (~ 720$)
These are about the only brands I can get around here (Europe). Another brand available is Online USV (German brand) but their rackmount UPS are kinda expensive.
I already owned a few APC UPSs (BackUPS Pro) and one failed on me (twice !). APC Support was very nice and a new unit was sent to me in less than 3 days.
That being said, APC support on GNU/Linux or FreeBSD seems to be lacking lately because of their Microlink protocol. Either I get an additionnal card (AP9620 or a Network Management card which is much more expensive), or I consider alternatives. There is a good availability of replacement batteries.
CyberPower offers their Powerpanel Linux version so there seem to be Linux support for their devices. Not sure if I could run it on FreeBSD in compatibility mode though. NUT doesn't seem to support [well] the PR* line of products (PR2200* is listed as "reverse engineered").
OPTI-UPS seem to offer "Double conversion" thus providing more filtering and a more stable voltage (see for instance here: http://www.tomshardware.com/reviews...00pfclcd-tripp-lite-smart1500slt,2785-12.html). This however heavily impacts on energy efficiency (even when there is no power outage). There is yet again a good availability of replacement batteries. Warranty only lasts 2 years though.
I personally would go with Cyberpower because of the lower price, but I'm still not sure about:
- FreeBSD support
- Batteries replacement (they claim they use "Universal" batteries that should be available at all major stores but who knows). Seems like OPTI-UPS and ONLINE USV have the same "Universal" battery policy
- Batteries seem to last less than APC ones
Thanks to anybody willing to help me make a good choice.
If you need further information, please ask.