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July 7th, 2004 18:00
raid config advice
Hi,
Recently we purchased a PowerEdge server, with 6 hard drives of 18Gb, all connected to channel 0. A virtual disk “One� is configured in Raid-1 with hd_0 and hd_1, where the OS is installed. Virtual Disk “Two� is configured in Raid 10 with hd_2,3,4,5.
What I need: having three hard drives available from the OS point of view, one for the op and the other two for the database system.
My question: which of the following two options is better in performance and/or fail protection:
1- The actual configuration (considering that I divide the second virtual disk in two partitions)
2- Or deleting the virtual disk “Two� in Raid10, and reconfigure 2 virtual disks in Raid-1, one with hd_2 + hd_3, and another with hd_4 + hd_5 ?
Thanks for your help, Aishel
Recently we purchased a PowerEdge server, with 6 hard drives of 18Gb, all connected to channel 0. A virtual disk “One� is configured in Raid-1 with hd_0 and hd_1, where the OS is installed. Virtual Disk “Two� is configured in Raid 10 with hd_2,3,4,5.
What I need: having three hard drives available from the OS point of view, one for the op and the other two for the database system.
My question: which of the following two options is better in performance and/or fail protection:
1- The actual configuration (considering that I divide the second virtual disk in two partitions)
2- Or deleting the virtual disk “Two� in Raid10, and reconfigure 2 virtual disks in Raid-1, one with hd_2 + hd_3, and another with hd_4 + hd_5 ?
Thanks for your help, Aishel
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TeamBase
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July 13th, 2004 21:00
Hi. I've been researching this for many months.
I have just finished reading a chapter in the MS SQL SERVER 2000 admin book that clearly documents why RAID 1 is better than RAID V (or 10).
I would recommend 2 sets of RAID 1 Mirror'd drives 2 2 2 for your 3 logical drives A B and C.
Good luck!