This allows room for the drive to move and delete items without affecting the overall storage capacity. This process is called wear leveling and happens automatically as the drive is working.īecause the read/write process requires data movement, SSDs are usually overprovisioned with storage there is always a certain amount of the drive that is not reported to the operating system, and not accessible to the user. To further prevent wear on the drive, there is an algorithm to make sure that each block in the drive gets an equal amount of read/write processes. In everyday use, it provides the same functionality as a traditional hard disk drive (HDD)the standard for computer storage. Because there are a finite number of times any block can be rewritten, this is an important process that prevents premature wear on the storage drive. A solid-state drive (SSD) is a data storage device for your computer. Ensure the SSD is connected and is not the boot drive In Windows 7, right-click Computer and select. Improve your system with the Crucial MX500 2TB 3D NAND SATA 2.5 Inch Internal SSD, an SSD built on quality, speed, and security that’s all backed by helpful service and support. DoD (Data Spills) Trusted for over 15 years by the U. There is another process called TRIM that informs the SSD that it can skip rewriting certain data when it erases blocks. Start your system in seconds, store up to 2TB of your irreplaceable files, and upgrade with a drive you can count on. The external interface connects the enclosure to the Mac. When the drive is idle, a process called garbage collection goes through and makes sure the information in the old block is erased and that the block is free to be written to again. 5-inch external enclosures: Used with the standard hard drives and SSDs found in most desktop. The data on the old block is copied to a different block, the block is erased, and the data is rewritten with the changes to a new block.Įach time you ask your computer to retrieve or update data, the SSD controller looks at the address of the data requested and reads the charge status. To hold the new SSD in place within the former optical drive bay, this 9 ZXUY drive caddy works with the metal 13-inch MacBook and pre-Retina, pre-2012 13-/15-/17-inch MacBook Pros. All the data in a block must be refreshed when any portion of it is updated.
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