trim · shipping · also ATA TRIM, UNMAP
TRIM
A command that tells an SSD which logical blocks are unused so the device can erase or prepare flash pages in advance.
SATA uses TRIM; NVMe uses the Deallocate/Unmap capability.
Relations
- related
- ssd, garbage-collection, sata, nvme
Advantages
- Helps maintain write performance and reduces unnecessary erase cycles.
Citations
- TRIM (accessed 2026-03-26)
- TechTarget — What is SSD TRIM? (accessed 2026-10-07)
- NVM Express — NVM Command Set Specification (Dataset Management / deallocate) (accessed 2026-10-07)
- Linux storage — discard/TRIM stack discussion (LF slides) (accessed 2026-10-07)
JSON: /data/terms/trim.json