trim

Using TRIM/DISCARD with Ceph RBD and libvirt

Using TRIM/DISCARD with Ceph RBD and libvirt 1500 1000 Wido den Hollander

TRIM/DISCARD Using TRIM/DISCARD you can give back free space to a Ceph cluster. Normally, any thin provisioned block device will keep on growing until its maximum size while being used. Using the DISCARD command a underlying block device can be instructed to discard blocks which do not contain data. In the case of Ceph’s RBD…

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