RAM SSD?

[T3chnerd]

Hey guys I've got a question. Why don't we use battery backed up ram as an SSD? Ram is faster than standard SSD so if you had your commonly loaded apps already loaded into a chunk of ram drive then startup would be a breeze. Any reason why I shouldn't stuff as much ram as I can fit into an older machine and set up a ram drive with a custom power delivery?

[descendency]

Cost. RAM isn't cheap. When was the last time you saw how much a 500GB SSD was? Now how about 500GB of RAM? Even 'cheap' used ECC RDIMMS that are DDR3 on Ebay will run you >$1000. A brand new enterprise SSD wouldn't even break $200.

[Electronics Wizardy]

THey have made these before, there just small and very expensive. With the protocol overhead of sas/sata or even pcie optane is almost as fast for much cheap.

[r2724r16]

16GB of RAM is ~$100. A good 1TB SSD is also ~$100.

 

What's the point of a low-capacity RAM drive when you can get a high-capacity PCIe SSD (that's relatively fast) for a much lower price?

[Bitter]

You mean the products that already have existed?

http://www.thessdreview.com/our-reviews/allone-cloud-disk-drive-101-ramdisk-review-500k-iops-ddr3-storage/

https://en.wikipedia.org/wiki/I-RAM

http://www.ddrdrive.com/

https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/hgst/zeusram-ssd/faq-zeus-ram-ssd.pdf

 

and so on. In other words 'simpsons did it'

[Enderman]

Already exists and is a stupid idea.

I wouldn't rely on a battery to prevent all my data from being instantly erased...

[Jurrunio]

Because volatile memory. If the battery run out of power, every single thing in there is gone for good. Nice if you're moving small bits of trade secrets, not so much anything other than that

[Bitter]

Well some of them can auto-backup to SD card which is cool, but at the prices these things command they're limited to only very specific data center uses.