 Home |
Products |
Support |
Community |
News |
xen-users
Re: [Xen-users] performace of disks
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: [Xen-users] performace of disks |
| From: | "Victor Hugo dos Santos" <listas.vhs@xxxxxxxxx> |
| Date: | Thu, 24 Jul 2008 14:49:49 -0400 |
| Delivery-date: | Thu, 24 Jul 2008 11:50:30 -0700 |
| Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=f0iLO8jwL78Kg3D48l5I2QOqe1O3xMCtCezCfrAjfmE=; b=sgLpBNLtrgAwyM/mHfrzRuulrpzSpvOAkTcqS5GyFJx7eMBLVS+LBsDPCfPnxJ6ESJ Utq88OFZmTi1QbAVaaaoIKZcFKnshH3jo4GmBDbdxoa8yQlclpttQgu//1pj7KJiizDJ TswptYy5IdKS0zjxwPV3Dtx4KfzLFxzrK3L4g= |
| Domainkey-signature: | a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=GocJ+SWn8lVHpJ7s5TgqChzfuj/b3aeIcM79rLvWmcT5qwRSTD9v3rYFxhAAzIu1Gh ZwhRQalWYsi5ZNwb+r4j+TyYeZhOnZ3XcBXzzYaWpDfcZ7lBmdvtPuil6ekhy5odK8NE qAoMOoYb5/oGpEmw5gMg9+uhWp2Q2B3Q4f4+Q= |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <op.ues4ni0o50772i@discordia> |
| 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: | <5dce4940807241007p252889fte1dc4059f0a2976b@xxxxxxxxxxxxxx> <op.ues4ni0o50772i@discordia> |
| Sender: | xen-users-bounces@xxxxxxxxxxxxxxxxxxx |
On Thu, Jul 24, 2008 at 1:39 PM, Fernando Jiménez Solano <fernandojs@xxxxxxxxxxxxxx> wrote: > On Thu, 24 Jul 2008 19:07:18 +0200, Victor Hugo dos Santos > <listas.vhs@xxxxxxxxx> wrote: [...] >> 1 - what is the best RAID (0,1,5,10,50) for server running very, very >> VM instances ??? >> 2 - and config of stripes/element sizes (32, 64, 128, 256, etc, KB) ?? > > I guess it depends more on the kind of disk activity of the VMs rather than > the number of VMs. Database server? Desktop? Media streamer? mmmm.. mmmm.. and mmmm but.. all virtual disks aren't one big image for Dom0 ??? in other words, this type of data in the virtual disks is relevant ?? > As you may know, RAID 5 is the all around performer and large stripes > give higher performance on large files. > >> 3 - in the configuration of VM, exit one difference in performance >> between image file (disk:/) or LVM partition (phy:/) ??? > > I guess you mean file:/ instead of disk:/ > > They theory would say using a partition is faster, since it evades > the inherent filesystem overhead of using a file. > > Experience-wise, 'tap:aio' performs better that 'file' while doing the same > job, have it a look. sorry.. this correct is file:/ not disk:/ thanks -- -- Victor Hugo dos Santos Linux Counter #224399 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | RE: [Xen-users] Dom0 crashes when serving java content on DomU, Ross S. W. Walker |
|---|---|
| Next by Date: | Re: [Xen-users] performace of disks, Javier Guerra |
| Previous by Thread: | Re: [Xen-users] performace of disks, Fernando Jiménez Solano |
| Next by Thread: | Re: [Xen-users] performace of disks, Javier Guerra |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
