Ubuntu Sverige

Hund skrev:Hur är det med livslängden? Hört att den är rätt begränsad? Känns dumt att köpa en SSD för 3000 kr på 30GB så håller den i 1 år..

Current SSDs have a block write capability of 100,000 times. That value is increasing. but it's still a finite number. However, "write endurance" is actually less of a problem than it could be. All manufacturers of SSDs currently embed management software into the firmware of the SSD. One aspect of this software is that it "scores" how many times a block of memory has been written to and then reallocates "over-written" blocks to different locations dynamically. Some manufacturers go even further. SiliconSystems has a patented algorithm which practically doubles the lifetime of an SSD over simple wear leveling. Adtron actually adds a bit of spare flash blocks to be used the case where a block will no longer be usable. All of this happens in firmware and is invisible to both the operating system and the end user and, since the firmware locks out blocks at the point where they would probably fail (instead of waiting for a failure), you never actually lose the data in those blocks. Also, since it is writing that causes the problem, even when a drive locks has no space left to store data due to block lockout, you can still copy the contents to a new, usable drive.

gruble skrev:Nagon av er som kenner till detta prg for ssd-diskar MFT enabled Flash Disks operate up to fifty times faster than a Hard Disk. Verkar inte fungera pa boot partitionen.