This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] RAID10 Array

To: jp.pozzi@xxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] RAID10 Array
From: Jonathan Tripathy <jonnyt@xxxxxxxxxxx>
Date: Thu, 17 Jun 2010 21:34:19 +0100
Delivery-date: Thu, 17 Jun 2010 13:35:56 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1276806355.15299.3.camel@xxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <4C195614.1030501@xxxxxxxxxxx> <1276806355.15299.3.camel@xxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20100423 Thunderbird/3.0.4

On 17/06/10 21:25, jpp@xxxxxxxxxxxxxxxxxx wrote:
Hi Everyone,

I have 3 RAID ideas, and I'd appreciate some advice on which would be
better for lots of VMs for customers.

My storage server will be able to hold 16 disks. I am going to export 1
iSCSI LUN to each xen node. 6 nodes will connect to one storage server,
so that's 6 LUNs per server of equal size. The server will connect to a
switch using quad port bonded NICs (802.3ad), and each Xen node will
connect to the switch using Dual port bonded NICs.

Idea 1:
3 X RAID10 Arrays (4 disks per array)
4 Hot Spares
2 LUNs per array

Idea 2:
1 X RAID10 Array (12 disks per array)
4 Hot Spares
6 LUNs per array

Idea 3:
1 X RAID 10 Array (14 disks per array)
2 Hot Spares
6 LUNs per array

It seems to be the best solution for the global IO throughput, I used
to have an Equalogic San with such an architecture, but with a Lun (or
two) for every VM.


Which "Idea" above are you talking about?


Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>