> -----Original Message----- > From: Scott Marlowe [mailto:scott.marlowe@xxxxxxxxx] > Sent: Monday, April 11, 2011 6:18 PM > To: mark > Cc: Glyn Astill; Kevin Grittner; Joshua D. Drake; pgsql- > performance@xxxxxxxxxxxxxx > Subject: Re: Linux: more cores = less concurrency. > > On Mon, Apr 11, 2011 at 6:05 PM, mark <dvlhntr@xxxxxxxxx> wrote: > > Just wondering, which LSI card ? > > Was this 32 drives in Raid 1+0 with a two drive raid 1 for logs or > some > > other config? > > We were using teh LSI8888 but I'll be switching back to Areca when we > go back to HW RAID. The LSI8888 only performed well if we setup 15 > RAID-1 pairs in HW and use linux SW RAID 0 on top. RAID1+0 in the > LSI8888 was a pretty mediocre performer. Areca 1680 OTOH, beats it in > every test, with HW RAID10 only. Much simpler to admin. Interesting, thanks for sharing. I guess I have never gotten to the point where I felt I needed more than 2 drives for my xlogs. Maybe I have been dismissing that as a possibility something. (my biggest array is only 24 SFF drives tho) I am trying to get my hands on a dual core lsi card for testing at work. (either a 9265-8i or 9285-8e) don't see any dual core 6Gbps SAS Areca cards yet....still rocking a Arcea 1130 at home tho. -M -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
