Volume Manager space allocation operations are now media type aware and currently supports the media types SSD and HDD.

The following space allocation operations are SSD aware:

Any new plex cannot span across media types. The complete plex would either be on an SSD or HDD.

Media type restrictions are not considered for site separated volumes.

If the existing plex is media confined, the Volume Grow operation respects the media type boundary. Otherwise, the plex may be extended to either HDDs or SSDs.

For Subdisk Move and related operations, such as Disk Evacuate, and volume migration without changing the layout, a subdisk can be moved only to a target disk of the same media type as the source. However, if you opt to change the layout of the volume during migration, then the media type restriction is not considered while choosing the target.

The Array migration operation fails if HDD target disks are assigned to the SSD source disks. In such scenarios, you may change the media type of the source disks using vxdisk setmedia and perform Array migration.

Further, during hot relocation, the media type restriction is not considered.