Mailinglist Archive: opensuse (1108 mails)

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[opensuse] prevent kernel wake up a sata drive from sleep "hdparm -B 1 -Y /dev/sda1"

tumbleweed desktopcomputer, kde:

i have a harddrive only for use as backup, it is not mounted.
i like to let it spin down "sleep mode"
working fine:
hdparm -B 1 -Y /dev/sda

but after some minutes its started rotating again and going into "idle" mode.
journalctl gave me:

kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
kernel: ata1.00: waking up from sleep
kernel: ata1: hard resetting link
kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
kernel: ata1.00: configured for UDMA/133
kernel: ata1: EH complete

what must i do to tell the system (kernel?) to "forget" the drive, not touching
it, let it in sleep mode?
(removing in some way /dev/sda ???????)



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