On Tue, Jul 7, 2015 at 11:46 AM, Graeme B. Bell <graeme.b...@nibio.no> wrote: >> >> RAID controllers are completely unnecessary for SSD as they currently >> exist. > > Agreed. The best solution is not to buy cheap disks and not to buy RAID > controllers now, imho. > > In my own situation, I had a tight budget, high performance demand and a > newish machine with RAID controller and HDDs in it as a starting point. > So it was more a question of 'what can you do with a free raid controller and > not much money' back in 2013. And it has worked very well. > Still, I had hoped for a bit more from the cheaper SSDs though, I'd hoped to > use fastpath on the controller and bypass the cache. > > The way NVMe prices are going though, I wouldn't do it again if I was doing > it this year. I'd just go direct to nvme and trash the raid controller. These > sammy and intel nvmes are basically enterprise hardware at consumer prices. > Heck, I'll probably put one in my next gaming PC. > > Re: software raid. > > I agree, but once you accept that software raid is now pretty much superior > to hardware raid, you start looking at ZFS and thinking 'why the heck am I > even using software raid?'
Good point. At least for me, I've yet to jump on the ZFS bandwagon and so don't have an opinion on it. merlin -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
