d966085321
Create a cron and associated script to run monthly OSD defrags. When the script runs it will switch the OSD disk to the CFQ I/O scheduler to ensure that this is a non-blocking operation for ceph. While this cron job will run monthly, it will only execute on OSDs that are HDD based with Filestore. Change-Id: I06a4679e0cbb3e065974d610606d232cde77e0b2