Re: [GENERAL] SAS Raid10 vs SATA II Raid10 - many small reads and writes

2010-03-10 Thread Phillip Berry
On Wednesday 10 March 2010 18:32:41 Scott Marlowe wrote: > On Tue, Mar 9, 2010 at 11:49 PM, Phillip Berry > > wrote: > > Hi Everyone, > > > > We're in the market for a new DB server to replace our current one (yes > > it's one of *those* questions) ;

[GENERAL] SAS Raid10 vs SATA II Raid10 - many small reads and writes

2010-03-09 Thread Phillip Berry
Hi Everyone, We're in the market for a new DB server to replace our current one (yes it's one of *those* questions) ;). It'll have quad core Xeons, 36GB RAM and some sort of Raid 10 configuration. Our provider is pushing us towards 6 x SATA II disks in a Raid 10 configuration or 4 x SAS disks

Re: [GENERAL] Maximum reasonable free space map

2008-12-16 Thread Phillip Berry
or even negative returns by setting the fsm too high? Cheers Phil On Wednesday 17 December 2008 13:02:21 Grzegorz Jaƛkiewicz wrote: > On Wed, Dec 17, 2008 at 12:55 AM, Phillip Berry > > wrote: > > I thought 185K was pretty high, is going to 700K+ reasonable? I've got

[GENERAL] Maximum reasonable free space map

2008-12-16 Thread Phillip Berry
Hi Everyone, Just wondering what the maximum reasonable free space map setting should be? I'm receiving the following advice from vacuum: INFO: free space map contains 170803 pages in 117 relations DETAIL: A total of 185000 page slots are in use (including overhead). 733008 page slots are re

Re: [GENERAL] Startup process thrashing

2008-12-11 Thread Phillip Berry
On Friday 12 December 2008 03:59:42 Tom Lane wrote: > Greg Smith writes: > > On Thu, 11 Dec 2008, Phillip Berry wrote: > >> I'm not running PITR and checkpoint_segments is set to 100 as this is > >> home to a very write intensive app. > > > > That'

Re: [GENERAL] Startup process thrashing

2008-12-10 Thread Phillip Berry
Thursday 11 December 2008 15:20:21 you wrote: > On Thu, 11 Dec 2008, Phillip Berry wrote: > > I've got a bit of a problem. It started last night when postgres > > (8.1.9) went down citing the need for a vacuum full to be done due to > > the transaction log needing to

[GENERAL] Startup process thrashing

2008-12-10 Thread Phillip Berry
Hello Everyone, I've got a bit of a problem. It started last night when postgres (8.1.9) went down citing the need for a vacuum full to be done due to the transaction log needing to wraparound. So I stopped the server, logged in using a standalone backend and started a vacuum full analyze on