Looking for an UPS for ReadyNAS Duo v2

StephenB wrote:

timous wrote: StephenB wrote: WoL packets are ethernet packets, the USB interface doesn't carry them (and even if it did, the NAS bios wouldn't be looking for them there). You're right, I was talking about WoL over Ethernet, which requires the UPS to have a Ethernet port (not for RJ45 port protection but for sending WoL signals). Does it only exist on cheap UPS? I have never seen a UPS with this feature at any price point.

That's a shame. I guess that there is no way to know that power went back if you're not at home. If I knew that power went back I would then WoL the machines through the Internet.
Ok in my case it works actually because the scenario would be:

• Power failure -> Nas sends an email before shutdown (so I know about the power failure);


• I wait for a Ping response from my ADSL router -> when it answers the Ping request it means that power has been restored;


• Then I know that I can WoL my machines through the Internet, via the router.

StephenB wrote:
BTW, don't confuse RJ45 with ethernet. Some UPS do use RJ45, but they are not using ethernet. RJ45 is just a connector.

You're right, that's the reason why I speak about UPS with RJ45 connectors for line protection in one hand and an intelligent UPS that uses the Ethernet to send WoL packets (preferably through a RJ45 connector) in another hand.

StephenB wrote:
timous wrote: ...What do you mean by drain? Drain->run down the battery to the point where the NAS is told to shut down.

Thanks (still need to improve my English) :)

StephenB wrote:
Almost all of my power failures are very short (a few seconds to a few minutes). My UPS will power the NAS for a half hour anyway (the UPS status says about an hour at the moment). Yours are obviously much longer.

I like hearing that :lol:

StephenB wrote:
The way this is normally handled is that the UPS is configured to hold back power until it is reasonably charged up. The protected devices (NAS in this case) are expected to have bios settings that allow them to automatically boot when power is restored. The ReadyNAS doesn't let you adjust the bios settings to do that.

Ahhhhh great, I didn't know that. Interesting feature... So such a hardware would know that shutdown is because of a power cut and will boot up when power is restored... never heard about it before.

Thank you for your answers.