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RE: [Xen-users] RAID10 Array

To: "Bart Coninckx" <bart.coninckx@xxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] RAID10 Array
From: "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx>
Date: Thu, 17 Jun 2010 13:17:38 +0100
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Thread-topic: [Xen-users] RAID10 Array

Hi Bart,

Through this very helpful mailing list, I have over time trimed and changed my plans.

My current train of thought is to have 3 RAID10 arrays with 4 hot spares. The storage server will create 2 LV per RAID Array, and export one LV to each Xen node (So 6 Xen nodes per storage server). The storage server will be connected to the xen nodes via ATA over Ethernet. Each machine will be running 56 DomUs max, however this figure will be closer to around 30 I would say.

Specs for storage server are as follows:

3U Broadberry 836E16-R1200B  chassis (Black) with 1200W high-efficient
(1+1) redundant power supply (Gold Level 93%) 16 x SATA/SAS Hot Swap
drive bays, comprising of the following system validated components:-

1x E5506 Intel Quad-Core Xeon 2.13GHz 4Mb Cache 4.8GT/s 80Watts
8GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM Dual Rank
LSI MegaRAID SAS 9260-4i (6Gb/s) RAID Controller
Intel® PRO/1000 PT Quad Server Adapter RJ45 10/100/1000 Quad Port
X8DTL-iF Serverboard with Dual Gigabit LAN & IPMI Remote Management
Slimline DVD-RW Dual Layer Drive
RAID Controller Battery Backup Module ( LSIiBBU07)
3U Rackmount rail kit included
2x 250Gb 2.5" Drives for Operating System (RAID 1 - Mirrored)

With of course 16 X 1.5TB 7.2k SATA Hard Drives

It would be really appreciated if you could please let me know how my current plan is flawed :)

Many Thanks



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