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Yan2021-10-31 23:31:14
Hard disks
Yan, 2021-10-31 23:31:14

Where in the registry are the APM disable settings for the HDD?

The problem is, if earlier it was possible to disable APM via hdparm/hddscan, now it's a bummer.
Even if APM is turned off the HDD still parks and stops the spindle
In my case it happens immediately after turning off the screen (for example, bind to the shutdown button)
Parking and stopping occurs when powered by battery in any power scheme except "High performance"

All hard disk settings are the same
617efbee04957232106276.png617efbf3af432612181563.png

Win10 LTSCx64 Version 10.0.17763 Build 17763
disk ST500LT012-1DG142 500.1 GB
Notebook Vostro 3568 Core i3 6100u

Where to dig?
617efd3f20dfb789601653.png
UPD : I checked all the scenarios and determined that the disk stops under the condition of everything that I wrote above and, in addition, the screen turns off.
I set energy-saving options with the disk falling asleep at 1/5/20 minutes, etc.
and all the same, the disk will not stop until I turn off the screen (until the screen turns black)
.

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1 answer(s)
Z
Zettabyte, 2021-11-01
@Slayer_nn

if earlier it was possible to disable APM via hdparm/hddscan, now it's a bummer

For the past 10 years, this has been a fairly typical situation.
In general, I think that it is unlikely that something will be done. Or did everything work as it should with this particular disk before?
Actually, in the latest datasheet from Seagate you can find the following:
Note: Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported.

At the same time, on a slightly fresher Barracuda than yours, one could see this in the passport:
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1ER162
Firmware Version: CC43
AAM feature is:   Unavailable
APM level is:     128 (minimum power consumption without standby)

However, this does not mean that in your case you can change something.
Passport is a sector with information, it can be changed with DCO commands. Somewhere there is protection so that they don’t change everything at all, somewhere not - at least you can copy-paste this answer there.
What all discs have is a technological passport. And now it already allows or prohibits the use of values ​​in the ATA passport. But the data sheet cannot be accessed with standard ATA commands. There are no descriptions for the technology passport, only a few companies closely affiliated with Seagate can get them.
By the way, similar companies can apply to be "turned back" exclusively for them, as in the good old days.
Techno passport, by the way, can be read through the terminal, but it will not be possible to parse it, because. it is bitwise and the meaning of the value sets, as well as what they are responsible for, is kept secret.

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