Azure disk not marked as SSD

Solutions for Azure SSD disks incorrectly marked as rotational in Automation Suite on Linux.

Description

An Azure known issue incorrectly shows the rotational flag enabled for the Azure SSD disk. As a result, the Azure disk is not marked as SSD, and the following error occurs when trying to configure the Objectstore disk:

ERROR][2022-08-18T05:26:35+0000]: Rotational device: '/dev/sdf' is not recommended for ceph OSD

Solution

To fix this issue and mark the Azure SSD disk as non-rotational, run the following commands:

echo "0" > "/sys/block/{raw_device_name}/queue/rotational"
echo "KERNEL==\"${raw_device_name}\", ATTR{queue/rotational}=\"0\"" >> "/etc/udev/rules.d/99-ceph-raw-osd-mark-ssd.rules"
udevadm control --reload
udevadm trigger

Example:

echo "0" > "/sys/block/sdf/queue/rotational"
echo "KERNEL==\"sdf\", ATTR{queue/rotational}=\"0\"" >> "/etc/udev/rules.d/99-ceph-raw-osd-mark-ssd.rules"
udevadm control --reload
udevadm trigger