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Old 01-21-2010, 08:14 PM
Stan Hoeppner
 
Default problem whit optic fibre adapter (emulex LP952)

Marco Vaschetto put forth on 1/21/2010 4:29 AM:

> I want say tank you for your time,

You're welcome. Like I said, sorry I wasn't of more help.

> and I have just a question but this is about the ESX, in my company we
> do testing about virtualization solution the machine whit the optic
> fibre must
>
> do a iSCSI server, my question is how you feel about ESX and do you have
> try ESXi ? I mean about the performance, in my company have do the

So, you want to connect to a FC SAN on the back end, and server iSCSI over GigE
on the front end?

> benchmark on the windows se 2k3 virtualized on xenserver but we wold
> like try ESXi and ESX witch one is better for you?

I've not played with ESXi. My only experience is with ESX 2.5/3.0 on a IBM
Blade environment with Qlogic HBAs and mixed IBM FasTt and Nexsan storage
arrays. The performance was quite good.

--
Stan


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Old 01-21-2010, 09:49 PM
Marco Vaschetto
 
Default problem whit optic fibre adapter (emulex LP952)

Stan Hoeppner ha scritto:

Marco Vaschetto put forth on 1/21/2010 4:29 AM:



I want say tank you for your time,



You're welcome. Like I said, sorry I wasn't of more help.



and I have just a question but this is about the ESX, in my company we
do testing about virtualization solution the machine whit the optic
fibre must

do a iSCSI server, my question is how you feel about ESX and do you have
try ESXi ? I mean about the performance, in my company have do the



So, you want to connect to a FC SAN on the back end, and server iSCSI over GigE
on the front end?


yes, whit your expirience is a good way or have some is better? (the
testing time use the lp952 but when is coming the blade server is Qlogic
but the blade come later the test time) and on company have only a
LP952, and we will use w2k3 for iSCSI server (when is time I try to make
the iSCSI whit Debian and Qlogic)

benchmark on the windows se 2k3 virtualized on xenserver but we wold
like try ESXi and ESX witch one is better for you?



I've not played with ESXi. My only experience is with ESX 2.5/3.0 on a IBM
Blade environment with Qlogic HBAs and mixed IBM FasTt and Nexsan storage
arrays. The performance was quite good.


if you have a chance , and time, do you can make a benchmark whit a
program the name is performantest7.0 have evaluation version is free to
download;


if you can do me this favor pleas attachment this information

quantity host ram, host CPU, quantity guest ram, size of the virtual
disk of the guest machine, the infrastructure of the storage and the log
file of performance test.


Of course if do this test don't give you some trouble.

If you need I will send you back the benchmark of my test.





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Old 01-21-2010, 10:59 PM
Stan Hoeppner
 
Default problem whit optic fibre adapter (emulex LP952)

Marco Vaschetto put forth on 1/21/2010 4:49 PM:

> yes, whit your expirience is a good way or have some is better? (the
> testing time use the lp952 but when is coming the blade server is Qlogic
> but the blade come later the test time) and on company have only a
> LP952, and we will use w2k3 for iSCSI server (when is time I try to make
> the iSCSI whit Debian and Qlogic)

If I read that correctly, you're using Debian to test the FC SAN/iSCSI box, but
in production you're going to install W2K3 instead of Debian? That doesn't make
any sense. I must be reading this wrong.

> if you have a chance , and time, do you can make a benchmark whit a
> program the name is performantest7.0 have evaluation version is free to
> download;

Sorry. I'm no longer with that employer, and we don't have a SAN at my current
place, so I'm unable to do any testing for you.

To be completely honest you're probably better off going with an FC/iSCSI
gateway appliance than with a home brew Linux or Windows box, something like a
Nexsan 400i would probably suit your needs well.

--
Stan



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Old 01-22-2010, 05:49 AM
Marco Vaschetto
 
Default problem whit optic fibre adapter (emulex LP952)

Gilles Mocellin ha scritto:

On Wed, Jan 20, 2010 at 07:45:58PM -0600, Stan Hoeppner wrote:


Marco Vaschetto put forth on 1/20/2010 2:36 PM:


[...]



Debian is not a "commercial" distribution. Fiber channel is only found in
commercial environments. Thus, most of the people around the world using FC
adapters with Linux are NOT using Debian Linux, but rather Red Hat Enterprise or
SuSE Linux. Notice I am the only person on this list to try to help you? And
as I previously stated, I've not actually used FC cards with Linux on bare
metal. You need to be talking to an audience that actually has FC experience on
bare metal Linux. You may even try a SuSE or Red Hat mailing list as well.



Sorry but I use Debian on our SAN, with QLogic and Emulex FC cards.
I have no problems, but use different Emulex models...
(Zephyr-X LightPulse Fibre Channel Host Adapter)


Hi, on your infrastructure have a optic fiber switch?
I read some think about that have some problem whit emulex card connect
point to point.




You're right that with Debian, it is not easy to have the hardware vendor support
you...
There support Matirix is so restrictive about firmware and driver
versions... (HP here)


Tank's for answer.


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Old 01-22-2010, 06:40 PM
Gilles Mocellin
 
Default problem whit optic fibre adapter (emulex LP952)

On Fri, Jan 22, 2010 at 07:49:53AM +0100, Marco Vaschetto wrote:
[...]

> >Sorry but I use Debian on our SAN, with QLogic and Emulex FC cards.
> >I have no problems, but use different Emulex models...
> >(Zephyr-X LightPulse Fibre Channel Host Adapter)
> Hi, on your infrastructure have a optic fiber switch?
> I read some think about that have some problem whit emulex card
> connect point to point.

Yes, we have brocade FC switchs in Fabric mode.
So point to point, not loop mode.
 

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