The trim is kind of like the free counterpart to malloc. When the drive has been fully written, there is a lot less free space which constraints the GC and makes it works much harder. The trim tells the drive to free up space allowing for less GC work.<p>A big difference between client and enterprise drives is the amount of over-provisioning. A simple trick if you can&#x27;t use trim is to leave 5-10% of the drive unused to improve the effective over-provisioning and improve worst case performance.<p>The question of using trim in data centers might be due to interaction between trim and raid configurations because sometimes trim is implemented as nondeterministic (as a hint to the drive; persistant trim can cause performance drops unless you are willing to through in extra hardware to optimize it well) which causes parity calculation issues when recovering from a failed drive.