lundi 15 juin 2015

OS X 10.11 El Capitan support TRIM on SSDs third brands

 This is great news for all Mac users who replaced the hard drive of their computer by a third brand SSD OS X 10.11 El Capitan, which is scheduled for release this fall, will   supportera the TRIM finally! Rather than having to use  Trim Enabler and fear deactivation of each TRIM update for OS X, now it will be enough a simple Terminal command: "sudo trimforce enable". We tested this method on the first beta of OS X 10.11 and it works perfectly.  
  TRIM, which is far enabled by default for all Apple SSD but disabled for other brands modules, avoids performance losses and limit the wear of your SSD over time. In fact, when you delete files from a hard disk or SSD, the data is not actually deleted from the disk; only the catalog for the operating system to know where each file is modified to indicate that one or more locations are now free, and that new data can be written instead. Only where a hard drive can write data directly over existing content, SSD first needs to clear this content, and works for it in blocks of a fixed size (512K for example), this which requires moving the content regularly in the SSD to erase blocks and make them rewritable. This results in a performance loss and unnecessary paperwork that precipitate wear SSD. The TRIM commands to effectively delete the blocks deleted by the user so that the system always has at its disposal empty blocks ready to receive content. TRIM support by an operating system is very important, and easy activation of this command in OS X 10.11 El Capitan is a relief for DIYers who installed themselves an SSD in their Mac.