The problem is that a larger unit of the memory, a block, must be erased before a smaller unit, a page, can be written. Instead, solid state drives need to erase the now invalid data. The Trim command tells the SSD which cells can be erased during idle time, which also allows the drive to organize the remaining data-filled cells and the empty cells to write to to avoid unnecessary erasing and rewriting.įlash memory, which is what SSDs are made of, cannot overwrite existing data the way a hard disk drive can. For optimum life, each cell should be utilized at roughly the same rate as other cells. If data is written and erased from the same NAND cells all the time, those cells will lose integrity. Trim also affects the longevity of the solid state drive. This takes slightly more time to do than just writing the new information, so using Trim and Active Garbage Collection helps your SSD perform write commands more quickly.
The drive would need to erase the existing information, then write the new information. If the Trim command did not exist (as was the case before Windows® 7), then the solid state drive would not know that certain sectors in the drive contained invalid information until the computer told the drive to write new information to that location. The next time the computer is idle, Active Garbage Collection will delete the data. The Trim command tells the drive that the data can be removed. Instead, the area of the SSD that contains the data is marked as no longer used. Because of the way solid state drives read and write information, the data is not deleted from the drive at the user's command. From the user's perspective, this data has been deleted from a document.
TRIM ENABLER SSD PRO
That’s it! Pretty simple process for enabling something so important.Īlso, I should note that if you’re a super power user like me and you’ve installed two SSDs in your MacBook Pro and setup up a striped RAID, TRIM will work as expected and keep your RAID running smoothly.The Trim command tells the SSD that specific areas contain data that is no longer in use.
TRIM ENABLER SSD MAC
Click > About This Mac > System Report > SATA/SATA Express You can verify that TRIM Support is now running by opening the system report and seeing for yourself.
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