With three smallish APC UPS I decided to re-configure what's connected to each one. The two DSM NAS are to the same UPS so that one monitors and the other shares the status. Up to now I had kept the Safe Mode entry on 'Until low battery' thinking that is would be fairly low but able to withstand a second or even third power 'bounce' and still keep the NAS disks safe. Also with setting 'shutdown UPS on entering safe mode' and reboot after power outage.
I wasn't prepared that safe mode would be entered somewhere around 60-62% of battery remaining: I wasn't overly monitoring this as I was test it and a smaller/older UPS by switching off the wall socket and the NAS's UPS is bigger with and had ages to run.
Question 1: Is better to manually set a 'run for XX minutes before safe mode' to get a longer initial run on battery or stick with a 60% power down?
On my Mac the settings allow for shutdown when the battery has X minutes and/or Y% remaining. It seems a more obvious way to set this rather than hoping the UPS can run for XX minutes.
Question 2: And why doesn't SRM have any UPS configuration?
I wasn't prepared that safe mode would be entered somewhere around 60-62% of battery remaining: I wasn't overly monitoring this as I was test it and a smaller/older UPS by switching off the wall socket and the NAS's UPS is bigger with and had ages to run.
Question 1: Is better to manually set a 'run for XX minutes before safe mode' to get a longer initial run on battery or stick with a 60% power down?
On my Mac the settings allow for shutdown when the battery has X minutes and/or Y% remaining. It seems a more obvious way to set this rather than hoping the UPS can run for XX minutes.
Question 2: And why doesn't SRM have any UPS configuration?