Managing TRIM support for storage space reclamation

The TRIM feature ensures performance enhancement by enabling storage controllers to reclaim free space.

IBM Storage Scale RAID supports a TRIM operation to enhance the performance of flash-based declustered arrays. The TRIM feature allows the underlying storage controllers to reclaim free space from the file system. You can use the mmreclaimspace command to run TRIM commands on the storage media. The TRIM feature must be enabled at the physical disk level, within a declustered array, and at the file system NSD level.