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root@cephmon1:~# ceph osd pool set <POOL> crush_rule <CRUSH-MAP>

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Map osd

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to physifal disk

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On a cephmon

• ceph osd tree
  • for output man vil ha :For the output needed
  • ceph osd tree | grep down
• ceph osd find osd.XXX
  • For the output man vil haneeded
  • ceph osd find osd.XXX | grep host

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On the storage

...

node

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Find the device

• ceph-volume lvm list
  • for mindre For the output :needed
  • ceph-volume lvm list | grep 'osd id\|devices'

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Find serial number

• smartctl -a /dev/sda  <device from above>  | grep -i "Serial Number"

Finne diskbrønn

Bruk idrac og spor opp serienummer til disken

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Find physical drive bay

Idrac

Use idrac and track the serial number of the disk to which drive bay

Use the OS to trigger disk light if disk is working

• dd if=<device fra kommando over> from above> of=/dev/null