In addition to regular hard disk drives, ESXi supports Solid State Disks (SSDs).

Unlike the regular hard disks that are electromechanical devices containing moving parts, SSDs use semiconductors as their storage medium and have no moving parts.

On several storage arrays, the ESXi host can automatically distinguish SSDs from traditional hard disks. To tag the SSD devices that are not detected automatically, you can use PSA SATP claim rules.