Identifying thin and thin reclamation LUNs

Using Dynamic Multi-Pathing (DMP), Storage Foundation automatically discovers thin devices that have been recognized on the host as thin or thinrclm. DMP uses the Veritas array support libraries (ASLs) to recognize vendor-specific thin attributes and claim devices accordingly as thin or thinclm.

Thin devices that are classified as thin are capable of thin provisioning. Veritas Thin Reclamation only works on devices with the thinrclm attribute set. Before performing thin reclamation, determine whether the system recognizes the LUN as a thinrclm LUN.

To identify devices on a host that are known to have the thin or thinrclm attributes, use the vxdisk -o thin list command. The vxdisk -o thin list command also reports on the size of the disk, and the physical space that is allocated on the array.

To identify thin and thinrclm LUNs