[erlang-questions] RamSan and the EveOnline architecture

Ulf Wiger <>
Sat Dec 15 12:56:05 CET 2007


Note that mnesia uses disk_log for disc_copies, which
doesn't entail random access. For disc_only_copies, on the other
hand, it's dets, which would mean random access.

BR,
Ulf W

2007/12/15, Scott Lystig Fritchie <>:
> >>>>> "jm" == Jim McCoy <> writes:
>
> jm> You could also try using one of the more recent NAND solid-state
> jm> drives.  The performance numbers here
> jm> (http://www.nextlevelhardware.com/storage/battleship/) of running
> jm> raid 0 on a batch of these drives is pretty impressive, and for a
> jm> much better price if you are not bottlenecked on write ops.
>
> For anyone thinking of that particular line of NAND drives, you'll do
> well to fetch the product specification doc and look at page 9 (?) for
> the max. _*random* write I/O_ rate before making a purchase decision.
> If two orders of magnitude slower doesn't bother you, go for it.  :-)
>
> -Scott
> _______________________________________________
> erlang-questions mailing list
> 
> http://www.erlang.org/mailman/listinfo/erlang-questions
>



More information about the erlang-questions mailing list