Mac solid-state TRIM support to arrive in Mac OS X Lion

Mac solid-state TRIM support to arrive in Mac OS X Lion

Summary: According to reports, support for the TRIM command used by modern solid-state drives (SSD) will arrive with the release of Mac OS X Lion, aka Mac OS X Version 10.7. The software improves the write performance of the flash memory and can also reduce wear on the memory cells.

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According to reports, support for the TRIM command used by modern solid-state drives (SSD) will arrive with the release of Mac OS X Lion, aka Mac OS X Version 10.7. The software improves the write performance of the flash memory and can also reduce wear on the memory cells.

The article at AppleInsider looks at the latest developer release of Mac OS X Lion. It points out that the SSDs in current MacBook models incorporate TRIM in firmware, however, the current Snow Leopard OS doesn't support the technology.

The support is a work in progress, it appears.

The TRIM command is part of the ATA interface standard. So far, it appears Apple's support in Lion is only activated for SSDs shipped by the company and not third party devices, but this is likely to be fleshed out more as Lion develops.

Check Out: Mac OS X Lion Preview: New features, orphans first-gen Intel machines

Topics: Apple, Hardware, Operating Systems, Software

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4 comments
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  • RE: Mac solid-state TRIM support to arrive in Mac OS X Lion

    About time. For all it's hulaballoo about Apple being ahead of the curve, it's still astonishing to see them so far behind in many important technologies like this.
    De-Void
    • You said it!

      @De-Void
      Amen, brother!
      use_what_works_4_U
    • Well if SLC drives came down in price...

      ...you wouldn't have to worry about nonsense like TRIM and wear leveling.
      LTV10
  • RE: Mac solid-state TRIM support to arrive in Mac OS X Lion

    I have an SSD all ready to go into a MacBook. From this article it sounds like there won't be any way I can incorporate its TRIM capability, even after installing 10.7. Is this correct? What are the real-world consequences?
    BoogieStik