John Stoffel wrote:
Now I'm entertaining the silly idea of just using a mix of SAS and SATA drives in a flash pool instead. Get *some* of the advantages, but lots cheaper pricing. Esp using those big fat slow 4Tb drives in the dual drive sleds. Front them with a bunch of SAS disks and it should do quite nicely.
Not so nicely I think...
God knows there shouldn't be any technical reason this can't work, it's just a matter of moving blocks from one raidgroup in an aggregate to another.
Well, the problem is basically that if you put spinning disks in that/those RGs which are FlashPool, they will get thrashed so badly it will just make them melt and latency will go through the roof anyway There's no point, just run the system with the FAS box and som FlashCahce in it, as much as you can afford -- it will work better
/M