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A comment on SSD will fail at 40k power-on hours (2021). Parent comment

Re:SSD will fail at 40k power-on hours (2021) by colejohnson66 on Sunday July 10, 2022 @07:30PM (#32050320)
Receiving power isn’t the same as being “on”. I’d assume the drive has a sleep state that it goes into after inactivity, and those hours don’t count as “power on” hours.
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Re:SSD will fail at 40k power-on hours (2021) by jeffbee on Sunday July 10, 2022 @07:39PM (#32050407)
Interesting, thanks. The spec does leave it almost uselessly underspecified:

"Power On Hours: Contains the number of power-on hours. This may not include time that the controller was powered and in a non-operational power state."

The same drive reports only 329 "controller busy time" minutes.

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