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Proposed is an external storage device that would be a
cheaper alternative to current SSD devices. The product is a
box that houses sticks of RAM of a slightly obsolete
technology in which the user supplies their own RAM modules.
The device would have redundant battery backups (allowing
one
or the other battery to be swapped out sequentially to
replace the set without destroying the data integrity). The
device would normally be plugged in; the batteries only serve
in the event of power failure or for transporting the device.
RamSan-440
http://www.ramsan.c...-storage/ramsan-440
Pretty much exactly what this idea describes. Starts at around $93,000. [ytk, Feb 22 2012]
A less expensive DRAM drive
http://www.curtisss...tis/drives/hyperhd/
If you supply your own DRAM, it will be less expensive. [Vernon, Feb 22 2012]
HyperDrive5
http://www.hypeross...#hyperosHDIIproduct
This uses DDR2 sticks and automatically backs up to a Compact Flash drive. [kevinthenerd, Mar 08 2012]
[link]
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I always thought to use slow RAM as disk/device cache. |
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This has been baked for years. It mostly finds use in
the high-end market, specifically the niche segment
where I/O speed is paramount. They ain't cheap,
though... |
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Some of the frameworks are relatively inexpensive - the board and RAM slots. You have to provide your own ram though, and the limit on how much RAM you can fit on the whole board makes for a really tiny hard drive. They have capacitors to maintain maintenance power so the RAM won't go blank and wipe out your (alleged) hard drive. |
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Perhaps "soft drive" would be a better term. |
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Related to this, I replaced the hard disk drive in my iPod Mini with a CompactFlash memory card which has the same interface as these early disk drives. |
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