Friday, March 25, 2011

Mac OS X and the TRIM: "The" hack

With the release of the latest MacBook Pro Mac OS X began to manage the famous TRIM control, guaranteeing the sustainability performance of SSDs. However, only owners of the latest Mac and Apple could benefit from SSD. Our colleagues MacBidouille got down to break the shackles, with success. The blockage is at the level of a kernel extension for Mac OS supports storage devices.

This extension contains a detection procedure which verifies that the DSS is called well-installed Apple SSD. He "just" so to replace that string with the name of the DSS really present in the machinery that TRIM is activated. More exactly, it must be limited to the first 9 characters of the DSS for not varying the size of the file.

Must still have this extension. It is installed by default on the MacBook Pro 2011, but our colleagues provide a download link. Briefly, the procedure is a bit complex, but the result may be worthwhile depending on the use we make of its SSD and the quality of procedures for "garbage collection" of it.

We successfully tested on a MacBook in 2007 with a Crucial C300. For more details please see the step-by-step InsanelyMac.

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