Xen users - Aug 2011 - XCP slow install, start and stop vm on IBM X3650 server

Hi!

My vm was running on local storage (DELL R710) with normal performance but,
after export and import it to another server  (IBM X3650 - Xeon(R) CPU
E5310) in a pool with a hardware hba storage, the vm startup and reboot
it''s
very slow. The installation process of new vm is very slow too.

The Xeon E5620 CPU is better for virtualization than Xeon E5310?

Can someone explain to me why?

Sorry for my poor english!

-- 
Rogério da Costa


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On Mon, Aug 29, 2011 at 1:36 PM, DJ Roger <djroger.abalando@gmail.com>
wrote:
> Hi!
>
> My vm was running on local storage (DELL R710) with normal performance but,
> after export and import it to another server  (IBM X3650 - Xeon(R) CPU
> E5310) in a pool with a hardware hba storage, the vm startup and reboot
it''s
> very slow. The installation process of new vm is very slow too.
>
> The Xeon E5620 CPU is better for virtualization than Xeon E5310?
>
> Can someone explain to me why?
Did you change any configuration of the guest after moving it? Does
the guest still have the Xen Tools installed on the IBM system?

Can you give more details on the hardware specs and also the specifics
on your domU configuration in terms of memory, HVM or PV, etc.?

Thanks,
Todd

-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

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On Tue, Aug 30, 2011 at 11:30 AM, DJ Roger <djroger.abalando@gmail.com>
wrote:
> I don''t change any config of the guests.
>
> The guests are Suse Linux Enterprise server PV with the xen tools
installed.
>
> I think the problem is related to rdac/multipath config. I use the IBM
> DS4700.
>
> In one test, I reinstalled the server without setting up access to storage,
> using only local storage and the performance on start, stop of the guest
> returned to normal.
>
> I found some references about this in XenServer and XCP but none solves the
> problem:
>
>
http://www.michaelcolson.com/2009/10/02/xenserver-multipathing-with-ibm-ds4800/
>
> http://lists.xensource.com/archives/html/xen-users/2010-12/msg00337.html
>
> http://support.citrix.com/article/CTX125403
>
> There is no RDAC support in XCP for storage IBM DS4700?
>
Maybe it is a bug in XCP?
http://lists.xensource.com/archives/html/xen-users/2010-12/msg00346.html

What version of XCP are you using?


Thanks,
Todd

-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

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On Tue, Aug 30, 2011 at 2:38 PM, DJ Roger <djroger.abalando@gmail.com>
wrote:
>
>
> 2011/8/30 Todd Deshane <todd.deshane@xen.org>
>>
>> What version of XCP are you using?
>>
>>
>
> I''m using XCP 1.0
Please keep these messages on the list(s) as appropriate.

Thanks,
Todd

-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

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2011/8/30 Todd Deshane <todd.deshane@xen.org>
> On Tue, Aug 30, 2011 at 11:30 AM, DJ Roger
<djroger.abalando@gmail.com>
> wrote:
> > I don''t change any config of the guests.
> >
> > The guests are Suse Linux Enterprise server PV with the xen tools
> installed.
> >
> > I think the problem is related to rdac/multipath config. I use the IBM
> > DS4700.
> >
> > In one test, I reinstalled the server without setting up access to
> storage,
> > using only local storage and the performance on start, stop of the
guest
> > returned to normal.
> >
> > I found some references about this in XenServer and XCP but none
solves
> the
> > problem:
> >
> >
>
http://www.michaelcolson.com/2009/10/02/xenserver-multipathing-with-ibm-ds4800/
> >
> >
http://lists.xensource.com/archives/html/xen-users/2010-12/msg00337.html
> >
> > http://support.citrix.com/article/CTX125403
> >
> > There is no RDAC support in XCP for storage IBM DS4700?
> >
>
> Maybe it is a bug in XCP?
> http://lists.xensource.com/archives/html/xen-users/2010-12/msg00346.html
>
> What version of XCP are you using?
>
>
> Thanks,
> Todd
>
> --
> Todd Deshane
> http://www.linkedin.com/in/deshantm
> http://www.xen.org/products/cloudxen.html
> http://runningxen.com/
>
I''m using XCP 1.0

-- 

Rogério da Costa


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Todd,

There is a way to update the RDAC driver? I have tried to compile the
module downloaded
from IBM but many errors occur in the compilation.

Does this problem will be fixed in version 1.1 final?

Or is it just a bug of the driver included in version 1.0. Also did tests with
the 1.1 beta and had the same problems.

When checking the server logs I saw several messages related to
successive changes
of state (roundrobin - active - ghost) of disk paths and received several
warnings from IBM Storage Manager related to preferred path config error.

Thanks

2011/8/30 Todd Deshane <todd.deshane@xen.org>
> On Tue, Aug 30, 2011 at 2:38 PM, DJ Roger
<djroger.abalando@gmail.com>
> wrote:
> >
> >
> > 2011/8/30 Todd Deshane <todd.deshane@xen.org>
> >>
> >> What version of XCP are you using?
> >>
> >>
> >
> > I''m using XCP 1.0
>
> Please keep these messages on the list(s) as appropriate.
>
> Thanks,
> Todd
>
> --
> Todd Deshane
> http://www.linkedin.com/in/deshantm
> http://www.xen.org/products/cloudxen.html
> http://runningxen.com/
>


-- 
DJ ROGER
www.bsbblack.com
twitter.com/djrogerbsbblack

Rogério da Costa
Analista de informática e consultor de T.I.
(Linux - Windows - Redes)
+55 61 8135-7595
www.tisolution.net


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Hi, all,

I just found this reference which I think explains the problem I''m
having
with multipathing and IBM DS4700.

It seems that the DMP RDAC implementation included in XCP does not give good
support for IBM storage arrays.

Thanks.



2011/9/1 DJ Roger <djroger.abalando@gmail.com>
> Todd,
>
> There is a way to update the RDAC driver? I have tried to compile the
> module downloaded from IBM but many errors occur in the compilation.
>
> Does this problem will be fixed in version 1.1 final?
>
> Or is it just a bug of the driver included in version 1.0. Also did tests
with
> the 1.1 beta and had the same problems.
>
> When checking the server logs I saw several messages related to successive
changes
> of state (roundrobin - active - ghost) of disk paths and received several
> warnings from IBM Storage Manager related to preferred path config error.
>
> Thanks
>
>
> 2011/8/30 Todd Deshane <todd.deshane@xen.org>
>
>> On Tue, Aug 30, 2011 at 2:38 PM, DJ Roger
<djroger.abalando@gmail.com>
>> wrote:
>> >
>> >
>> > 2011/8/30 Todd Deshane <todd.deshane@xen.org>
>> >>
>> >> What version of XCP are you using?
>> >>
>> >>
>> >
>> > I''m using XCP 1.0
>>
>> Please keep these messages on the list(s) as appropriate.
>>
>> Thanks,
>> Todd
>>
>> --
>> Todd Deshane
>> http://www.linkedin.com/in/deshantm
>> http://www.xen.org/products/cloudxen.html
>> http://runningxen.com/
>>
>
>
-- 
Rogério da Costa


_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Hi, all,

I just found this reference which I think explains the problem I''m
having
with multipathing and IBM DS4700.

It seems that the DMP RDAC implementation included in XCP does not give good
support for IBM storage arrays.

http://support.citrix.com/article/CTX121364

Thanks.


2011/9/1 DJ Roger <djroger.abalando@gmail.com>
> Todd,
>
> There is a way to update the RDAC driver? I have tried to compile the
> module downloaded from IBM but many errors occur in the compilation.
>
> Does this problem will be fixed in version 1.1 final?
>
> Or is it just a bug of the driver included in version 1.0. Also did tests
with
> the 1.1 beta and had the same problems.
>
> When checking the server logs I saw several messages related to successive
changes
> of state (roundrobin - active - ghost) of disk paths and received several
> warnings from IBM Storage Manager related to preferred path config error.
>
> Thanks
>
>
> 2011/8/30 Todd Deshane <todd.deshane@xen.org>
>
>> On Tue, Aug 30, 2011 at 2:38 PM, DJ Roger
<djroger.abalando@gmail.com>
>> wrote:
>> >
>> >
>> > 2011/8/30 Todd Deshane <todd.deshane@xen.org>
>> >>
>> >> What version of XCP are you using?
>> >>
>> >>
>> >
>> > I''m using XCP 1.0
>>
>> Please keep these messages on the list(s) as appropriate.
>>
>> Thanks,
>> Todd
>>
>> --
>> Todd Deshane
>> http://www.linkedin.com/in/deshantm
>> http://www.xen.org/products/cloudxen.html
>> http://runningxen.com/
>>
>
>
> --
Rogério da Costa


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