News - SanDisk ULLtraDIMM SSD ultra-low latency storage launched

[HEXUS]

Flash storage solution in a DIMM slot offers five microsecond write latency.

Read more.

[Deftee]

Minor typo, first word of the article says 'SanDick'!

[sykobee]

The graph's lines are both this new Flash DIMM thing, red is latency, blue is I/Os per second.

How does the system know that the DIMM is a storage device instead of a RAM device? Must be something in the RDIMM specification...

[Ksyruz]

How does it fair with removing RAM sticks and using this for storage/RAM. Wouldn't this be more useful to HTPC's and small form factor systems that don't need fast RAM speeds

[Noxvayl]

Sounds awesome but how expensive will these be? I also expect that when we move to DDR4 the DIMM slot will change slightly like it has for previous changes which would mean an expensive upgrade to get the ULLtraDIMM to work with new machines.

If they are affordable, similarly priced to current SSDs, then I will be interested in one of these for an upgrade to my current SSD. PCI-E solutions are still too expensive for my liking so I suspect these will also be

[Scow Captain]

I've got the same question as sykobee, how does the server tell the DIMM slot is full of Flash rather (or in addition to?) RAM? Is it a kludge by using RDIMMs extra cycles?

Presumably the improved IOPS with multiple devices is simply striping?

CES was remarkable with its lack of SATA express compatible devices so perhaps this is the solution a couple of years down the road for consumers, it seems a more forward thinking solution than PCI Express. Intel will, of course, be the largest factor in determining this.

[shaithis]

The question is, does it effect memory performance on the server?

Does seem odd though, although you can't argue at the speed of the interface

Now, if only there were RDIMM capable boards that were affordable.....