Re: dell versus hp
Claus Guttesen <kometen@gmail.com>
From: "Claus Guttesen" <kometen@gmail.com>
To: "Tore Halset" <halset@pvv.ntnu.no>
Cc: pgsql-performance@postgresql.org
Date: 2007-11-06T11:36:33Z
Lists: pgsql-performance
> All of our existing servers are from Dell, but I want to look at some > other options as well. We are currently looking at rack boxes with 8 > internal SAS discs. Two mirrored for OS, Two mirrored for WAL and 4 in > raid 10 for the base. > > Here are our current alternatives: > > 1) Dell 2900 (5U) > 8 * 146 GB SAS 15Krpm 3,5" > 8GB ram > Perc 5/i. battery backup. 256MB ram. > 2 * 4 Xeon 2,66GHz > > 2) Dell 2950 (2U) > 8 * 146 GB SAS 10Krpm 2,5" (not really selectable, but I think the > webshop is wrong..) > 8GB ram > Perc 5/i. battery backup. 256MB ram. > 2 * 4 Xeon 2,66GHz > > 3) HP ProLiant DL380 G5 (2U) > 8 * 146 GB SAS 10Krpm 2,5" > 8GB ram > P400 raid controller. battery backup. 512MB ram. > 2 * 2 Xeon 3GHz > > All of those alternatives cost ca the same. How much (in numbers) > better are 15K 3,5" than 10K 2,5"? What about the raid controllers? > Any other alternatives in that price-range? When writing is important you want to use 15K rpm disks. I personally use the DL380 and is very satisfied with the hardware and the buildin ciss-controller (with 256 MB cache using 10K rpm disks). How much space do you need? 72 GB is the largest 15K 2.5" sas-disk from HP. -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare