On Sat, 8 Aug 2020, Todd Benivegna wrote:
I just ran a manual test, killing power and see what happens. I set the
Synology “Time before DiskStation goes into Safe mode”
What is "Safe mode"? Is it complete power down?, or some sort of hibernation?
If it's not a complete power down, how is the hibernation powered?
to 5 minutes so I didn’t have to wait like an hour until it powered
down. Here is the log:
https://hastebin.com/ovuwilufeb.sql
Aug 8 14:31:01 proton upsmon[1561]: UPS [email protected] on battery
Aug 8 14:36:01 proton upsmon[1561]: UPS [email protected]: forced shutdown in
progress
Aug 8 14:36:01 proton upsmon[1561]: Executing automatic power-fail shutdown
Aug 8 14:36:01 proton upsmon[1561]: Auto logout and shutdown proceeding
Aug 8 14:36:06 proton upsmon.conf: UPS status [FSD OB DISCHRG]:85
Notice the effect of the upsmon FINALDELAY 5 declaration in the last line.
Status [FSD OB DISCHRG] is what one would expect in a slave. I see the UPS has
lost 15% of it's charge in 5 minutes.
Everything appeared to be normal; the servers powered off and the Synology
went into safe mode. Power was then cut to the Synology and my UPS turned
off.
I assume power was cut to the Synology because the UPS disconnected it's power
outlets (often referred to as "UPS turns off").
Could it be something like the Synology drives were in hibernation and the
Synology wasn’t responding (was probably coming out of hibernation - it takes
maybe 5-10 seconds) and NUT thought the server was dead and shut everything
down? On that note, I did have the Synology set to hibernate/spin down the
disks after 1 hour, but just disabled that just in case; will be on all the
time now. You think that was possibly the problem?
It would be interesting to see what the Synology log says for hibernation, upsd
and upsmon for a) a manual test, and b) a real wall power failure.
Roger
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