On Wed, Nov 2, 2011 at 12:01 PM, Benjamin Smith <lists@xxxxxxxxxxxxxxxxxx> wrote: > Well, > > After reading several glowing reviews of the new OCZ Vertex3 SSD last spring, > we did some performance testing in dev on RHEL6. (CentOS) > > The results were nothing short of staggering. Complex query results returned > in 1/10th the time as a pessimistic measurement. System loads dropped from 2+ > to 0.1 or less. > > Wow. > > So after months of using this SSD without any issues at all, we tentatively > rolled this out to production, and had blissful, sweet beauty until about 2 > weeks ago, now we are running into sudden death scenarios. We have excellent > backup system, so the damage is reduced to roadbumps, but are looking for a > longer term solution that doesn't compromise performance too much. > > The config is super-basic, basically no tuning at all was done: > > # fdisk /dev/NNN; > mke2fs -j $partn; > mount $partn /var/lib/pgsql; > rsync -vaz /var/lib/pgsql.old /var/lib/pgsql; > service postgresql start; > > I don't mind spending some money. Can anybody comment on a recommended drive > in real world use? > > After some review I found: > > 1) Micron P300 SSD: claims excellent numbers, can't find them for sale > anywhere. > > 2) Intel X25E - good reputation, significantly slower than the Vertex3. We're > buying some to reduce downtime. > > 3) OCZ "Enterprise" - reviews are mixed. > > 4) Kingston "Enterprise" drives appear to be identical to consumer drives with > a different box. > > 5) STEC drives are astronomically expensive. (EG: "You're kidding, right?") > > 6) Corsair consumer drives getting excellent reviews, Aberdeen Inc recommended > in use with RAID 1. > > 7) Seagate Pulsar drives, XT.2 drives are expensive SLC but can't find a > vendor, Pulsar .2 drives are more available but having trouble finding reviews > other than rehashed press releases. > > Thanks! The X25-E is now essentially being replaced by the 710. I would look there. merlin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
