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DL385 G7 - I/O Sub System

Jakey1999
Occasional Contributor

DL385 G7 - I/O Sub System

Given budget constraints I have a choice of the following IO sub-system options that I wanted to get some opinions/advice on. Both price out about the same for the DL385 G7 running SQL 2005 64bit and within our budget, so at this point I’m more interested in the performance benefit of one option over the other, if any. Here they are:

Option 1:
2 - P410 (one integrated) Controllers with 512MB Flashback Cache;
12 72GB 6G Hot Plug 2.5 SAS Drives:
System Drive - RAID 1;
SQL Log – RAID 1;
SQL Temp DB – RAID 1;
SQL User Databases – RAID 1+0 (4 disks);
2 online spares – one for each controller.

Option 2:
1 - P410 (one integrated) Controller with 1GB Flashback Cache;
1 – SAS Expander Card;
13 72GB 6G Hot Plug 2.5 SAS Drives:
System Drive - RAID 1;
SQL Log – RAID 1;
SQL Temp DB – RAID 1;
SQL User Databases – RAID 1+0 (6 disks);
1 online spare.

Please let me know what you think. Thank you.