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back to article We wuz right: Big Blue ARE stuffing System x boxen with ULLtraDIMMs

Confirming our story about IBM stuffing ULLtraDIMMs into its an X-series servers, storage news upstart EnterpriseTech* reports that Big Blue's coming X6 servers, supporting Xeon E7 v2 processors, will have eXFlash memory channel storage: flash memory on a DDR3 module running on the memory bus. A SanDisker confirmed it was …

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  1. Semtex451

    Boxen Clever?

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  2. Long John Brass

    and have application working sets in the extended memory

    So will that require EMM386 or HIMEM.SYS to work properly?

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    1. Destroy All Monsters Silver badge
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      Definitely a few kernel fixes and probably a years or so until one knows the best way how this shall be used.

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    2. KA
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      Working sets are generally being modified byte-by-byte by the application.

      Last time I checked, flash memory could only overwrite bytes that had been zeroed first, and zeroing occurred page-by-page.

      Unless they've managed to make flash behave like RAM, they are going to be using it as a fast swap space, just like EMM386 used to do.

      Will this driver be needed in every operating system or just the hypervisors?

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