On Nov 6, 2007, at 12:36 , Claus Guttesen wrote:
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.
Okay, thanks. We need 100GB for the database, so 4 72GB in raid 10
will be fine.
Regards,
- Tore.
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