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Re: [Xen-API] SR-IOV support in XCP 1

To: R J <torushikeshj@xxxxxxxxx>
Subject: Re: [Xen-API] SR-IOV support in XCP 1
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Mon, 29 Aug 2011 18:27:02 +0300
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On Thu, Aug 25, 2011 at 10:37:15PM +0530, R J wrote:
>    Hello List,
> 

Hello,

>    I'm evaluating current stable release of XCP1 on Fiber Channel Storage of
>    Hitachi with 4Gb cache AMS2100.
>    I'm using boniee++ to evaluate the 2TB lun from a Centos VM 2 vCPU / 4GB
>    RAM ( file size 8GB ). The VM runs on a Dell R410.
> 

So the subject mentions SR-IOV so does that mean you're 
passing thru HBA VF to the VM ? and using the VF driver in the VM ?

Also: How does the storage perform without any virtualization,
ie. from Linux on baremetal.

-- Pasi

>    I'm getting a good speed of 120Mbps at times over 4Gbps FC.
>    My questions are
>    1) Is it really good speed over a 4Gbps FC ?
>    2) I start getting rport failure error if I repeat the tests for 3-4 times
>    so is it normal ?
>    3) To solve above question xenserver forums are asking to upgrade the
>    qlogic drivers, so are there any ?
>    4) There is no scli command in XCP1 version but as I remember there was
>    "scli" command in XCP0.5, so is there a way to get back it ?
>    5) If I want to limit the storage access speed of VM what can I do ?
> 
>    Thanks for help.
> 
>    Regards,
>    Rushi

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