Package: hdparm
Version: 6.9-2
I have a machine with several drives. These drives appear under
differing device names, depending on kernel version, and differing
startup conditions (e.g. module load order).
I would like some drives (3.5" drives) to spin-down when not in use, and
some (2.5" drives) to remain spinning. This is not currently possible
with hdparm.conf, as I can't tell which devices will refer to which drives.
One fix may be to be able to use the serial number, or model as listed
in the output of "hdparm -I". Another possible fix would be the ability
to refer to the slave devices of software raid arrays. e.g. the slave
drives of a software raid array could be discovered using something like:
for DEV in md4 md5 ; do ls -al /sys/block/$DEV/slaves/ | egrep -o
block/.+/ | cut -d / -f 2; done | sort | uniq
Yet another possibility would be the ability to use the "LABEL", or
"UUID" feature of the mount to command to resolve device names from the
filesystem superblock info e.g. -
mount -f -v -U 4f6de864-aee6-4de9-986d-617c2f61f146
can be used to resolve the supplied UUID to a device name, without
carrying out the mount command.
Tim.
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