7 ms·
You can get ECC DDR3 ram for less than $1 per GB, and it doesn't wear out like SSDs do. Makes a lot of sense for a cheap cache disk. I can totally see using a r
by traverseda 4y ago
You can get ECC DDR3 ram for less than $1 per GB, and it doesn't wear out like SSDs do. Makes a lot of sense for a cheap cache disk. I can totally see using a ram disc like that for a zfs/bcachefs cache with a modern CPU that doesn't accept DDR3. Might make more sense to use PCI than SATA though.
A niche market, but I think there would be a market for ram drives like that, especially if they supported ECC memory. Lots of old server memory kicking around but if you want to actually use it your stuck with some abysmal CPU performance and a very high CPU power draw.
- tgflynn 4y ago$1 per GB is $1000 per TB. I just bought a 1TB SSD for about $70. With such a large price difference you'd be better off buying a new SSD every year or more often, if you're worried about it wearing out.
- derkades 4y agoAt that price it's probably QLC, which will be too slow for a busy cache and will probably die in less than a year.
- Dylan16807 4y agoNah, SSDs are going down nicely in price. You can get 1TB of TLC for less than $50.