* avoid disk spinup at system resume
@ 2015-03-16 12:28 Peter Münster
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From: Peter Münster @ 2015-03-16 12:28 UTC (permalink / raw)
To: linux-scsi
Hi,
My SATA disk (sdb) spins up at every system resume. How could I avoid
that please?
Some details:
- sdb not mounted
- echo 0 >/sys/block/sdb/device/scsi_disk/2:0:0:0/manage_start_stop
- hdparm -C /dev/sdb : "drive state is: standby"
- s2ram
- after wake up: "drive state is: active/idle"
- kernel message at wakeup: "sd 2:0:0:0: [sdb] Synchronizing SCSI cache"
- when doing "echo scsi remove-single-device 2 0 0 0 >/proc/scsi/scsi"
before s2ram, sdb keeps sleeping after resume
I need the disk only about once per week. I use s2ram several times per
day, and I prefer that sdb keeps sleeping.
TIA for any hints,
--
Peter
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2015-03-16 12:28 avoid disk spinup at system resume Peter Münster
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