Messages in this thread | | | Date | Mon, 20 Feb 2012 13:20:22 +0100 | From | Karel Zak <> | Subject | MD and rotational attribute |
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Hi Neil,
I guess that something is wrong with MD. If you create a RAID on ssd (or scsi_debug in my example) than MD device is reported as rotational. Simple example:
modprobe scsi_debug dev_size_mb=500 fdisk /dev/sdb ... mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb{1,2}
# cat /sys/block/sdb/queue/rotational 0 # cat /sys/block/md0/queue/rotational 1
It seems like a bug.
Karel
-- Karel Zak <kzak@redhat.com> http://karelzak.blogspot.com
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