[gentoo-dev] OffTopic: VMWare ESX

[gentoo-dev] OffTopic: VMWare ESX

[John Mylchreest]

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Hi All,

Apologies for posting my question to such lists, but it hits the exact
audience I'm after a response from :)

Does anyone at work run Vmware ESX Server? If so, could they please get
in touch with me so that I might talk about experiences?

Regards,
John

-- 
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Re: [gentoo-dev] OffTopic: VMWare ESX

[Omkhar Arasaratnam]

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John Mylchreest wrote:

>Hi All,
>
>Apologies for posting my question to such lists, but it hits the exact
>audience I'm after a response from :)
>
>Does anyone at work run Vmware ESX Server? If so, could they please get
>in touch with me so that I might talk about experiences?
>
>Regards,
>John
>
>
>
John,

I've worked with it before and have a number of colleagues in the field
- what's up?

--

Omkhar Arasaratnam - Gentoo PPC64 Developer
omkhar@gentoo.org - http://dev.gentoo.org/~omkhar
Gentoo Linux / PPC64 Linux: http://ppc64.gentoo.org


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Re: [gentoo-dev] OffTopic: VMWare ESX

[DK Smith]

Quoting John Mylchreest <johnm@gentoo.org>:

> Hi All,
>
> Apologies for posting my question to such lists, but it hits the exact
> audience I'm after a response from :)
>
> Does anyone at work run Vmware ESX Server? If so, could they please get
> in touch with me so that I might talk about experiences?
>
> Regards,
> John


Hello John,

I use VMWare (and every other major OS) in my lab at Sun where we design and
test storage products. In this context, we use VMWare as a data host,
primarily, to drive I/O to disk arrays.

However, I'm surprised that I am taking the time to interface with you
considering how your crew treated me last Fall.

Is there a particular question that you wanted to ask of VMWare users?

Cheers,
DK

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Re: [gentoo-dev] OffTopic: VMWare ESX

[John Mylchreest]

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Hi there, thanks for getting back to me.

basically, What I was wanting to know is actual hands-on experience.
Whats it like? Pros? Cons? What to watch out for? what its exceptionally
good at? whats it exceptionally bad at? bugs? all the normal kind of
questions really. How is it so different to vmware workstation? what big
management (of guest OS and resource allocation) features are there?

Also, if you can, how you use it. what it is you do with it? Application
clustering? etc etc.

All the stuff which doesnt come out of press releases, reviews and
promos :)

Cheers, in anticipation :)
Regards,
John

P.S. DK, what happened last fall is water under the bridge.
Misconceptions all around, and glad to see your still here.

On Wed, 2005-05-04 at 15:12 -0400, Omkhar Arasaratnam wrote:
> John Mylchreest wrote:
> 
> >Hi All,
> >
> >Apologies for posting my question to such lists, but it hits the exact
> >audience I'm after a response from :)
> >
> >Does anyone at work run Vmware ESX Server? If so, could they please get
> >in touch with me so that I might talk about experiences?
> >
> >Regards,
> >John
> >
> >
> >
> John,
> 
> I've worked with it before and have a number of colleagues in the field
> - what's up?
> 
> --
> 
> Omkhar Arasaratnam - Gentoo PPC64 Developer
> omkhar@gentoo.org - http://dev.gentoo.org/~omkhar
> Gentoo Linux / PPC64 Linux: http://ppc64.gentoo.org
> 
-- 
Role:            Gentoo Linux Kernel Lead
Gentoo Linux:    http://www.gentoo.org
Public Key:      gpg --recv-keys 9C745515     
Key fingerprint: A0AF F3C8 D699 A05A EC5C  24F7 95AA 241D 9C74 5515
Web:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x9C745515

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Re: [gentoo-dev] OffTopic: VMWare ESX

[Jan Kundrát]

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John Mylchreest wrote:
> basically, What I was wanting to know is actual hands-on experience.
> Whats it like? Pros? Cons? What to watch out for? what its exceptionally
> good at? whats it exceptionally bad at? bugs? all the normal kind of
> questions really. How is it so different to vmware workstation? what big
> management (of guest OS and resource allocation) features are there?

*Really* OT here, but you may find Xen (http://xen.sourceforge.net/)
interesting.

-jkt

-- 
cd /local/pub && more beer > /dev/mouth

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Re: [gentoo-dev] OffTopic: VMWare ESX

[John Mylchreest]

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Unfortunately it has to be vmware. Xen is excellent fro many things, but
this ESX server is considerably different to most things. Anyways, aside
from that the choice of product has been made. Just not the decision to
go with it. So that's what this is for. Some real life feedback.


On Wed, 2005-05-04 at 23:37 +0200, Jan Kundrát wrote:
> John Mylchreest wrote:
> > basically, What I was wanting to know is actual hands-on experience.
> > Whats it like? Pros? Cons? What to watch out for? what its exceptionally
> > good at? whats it exceptionally bad at? bugs? all the normal kind of
> > questions really. How is it so different to vmware workstation? what big
> > management (of guest OS and resource allocation) features are there?
> 
> *Really* OT here, but you may find Xen (http://xen.sourceforge.net/)
> interesting.
> 
> -jkt
> 
-- 
Role:            Gentoo Linux Kernel Lead
Gentoo Linux:    http://www.gentoo.org
Public Key:      gpg --recv-keys 9C745515     
Key fingerprint: A0AF F3C8 D699 A05A EC5C  24F7 95AA 241D 9C74 5515
Web:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x9C745515

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Re: [gentoo-dev] OffTopic: VMWare ESX

[M. Edward (Ed) Borasky]

There are also some serious performance issues with I/O. Xen is a much
better way to go in the long run. See

http://bugs.gentoo.org/show_bug.cgi?id=70161

for the team that's working to bring Xen to life in Gentoo, and the Xen
home page at

http://www.cl.cam.ac.uk/Research/SRG/netos/xen/performance.html



Matthew Marlowe wrote:

>ESX is a completely different beast than workstation, or GSX for that matter.
>
>Good:
>-  Very, very stable
>-  The only real vmware software designed for server apps
>-  Performance VM QoS for disk, cpu, network, etc
>-  Easily run 30-40 VM's on a strong box w/ good mem
>-  Deals with lots of NIC's assigned to different vm's
>-  Per VM User Access Policies
>-  Very nice realtime performance reporting
>  
>Bad:
>- Dont use for apps that really need performance of
>dedicated boxes
>- Not cheap, especially if get all the management add ons.
>- Setting up some of the networking is more complicated than
>it needs to be.
>- Not very good w/ linux 2.6 kernel support yet (read, dont do it)
>-  I don't find the rollback, and cloning functionality as useful
>as others.  In fact, I've seen some vm's be corrupted if you
>select the "append" mode for disk writes, which creates
>a redo log that can get lost if the server hardware crashes.
>
>Matt
>
>--- Original Message---
> To: gentoo-dev@lists.gentoo.org
> From: John Mylchreest <johnm@gentoo.org>
> Sent:  5/04/2005  2:16PM
> Subject: Re: [gentoo-dev] OffTopic: VMWare ESX
>
>  
>
>>>Hi there, thanks for getting back to me.
>>>
>>>basically, What I was wanting to know is actual hands-on experience.
>>>Whats it like? Pros? Cons? What to watch out for? what its exceptionally
>>>good at? whats it exceptionally bad at? bugs? all the normal kind of
>>>questions really. How is it so different to vmware workstation? what big
>>>management (of guest OS and resource allocation) features are there?
>>>
>>>Also, if you can, how you use it. what it is you do with it? Application
>>>clustering? etc etc.
>>>
>>>All the stuff which doesnt come out of press releases, reviews and
>>>promos :)
>>>
>>>Cheers, in anticipation :)
>>>Regards,
>>>John
>>>
>>>P.S. DK, what happened last fall is water under the bridge.
>>>Misconceptions all around, and glad to see your still here.
>>>
>>>On Wed, 2005-05-04 at 15:12 -0400, Omkhar Arasaratnam wrote:
>>>      
>>>
>>>>John Mylchreest wrote:
>>>>
>>>>        
>>>>
>>>>>Hi All,
>>>>>
>>>>>Apologies for posting my question to such lists, but it hits the exact
>>>>>audience I'm after a response from :)
>>>>>
>>>>>Does anyone at work run Vmware ESX Server? If so, could they please get
>>>>>in touch with me so that I might talk about experiences?
>>>>>
>>>>>Regards,
>>>>>John
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>John,
>>>>
>>>>I've worked with it before and have a number of colleagues in the field
>>>>- what's up?
>>>>
>>>>--
>>>>
>>>>Omkhar Arasaratnam - Gentoo PPC64 Developer
>>>>omkhar@gentoo.org - http://dev.gentoo.org/~omkhar
>>>>Gentoo Linux / PPC64 Linux: http://ppc64.gentoo.org
>>>>
>>>>        
>>>>
>>>--
>>>Role:            Gentoo Linux Kernel Lead
>>>Gentoo Linux:    http://www.gentoo.org
>>>Public Key:      gpg --recv-keys 9C745515
>>>Key fingerprint: A0AF F3C8 D699 A05A EC5C  24F7 95AA 241D 9C74 5515
>>>Web:
>>>http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x9C745515
>>>
>>>
>>>      
>>>
>
>
>  
>
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Re: [gentoo-dev] OffTopic: VMWare ESX

[Donnie Berkholz]

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M. Edward (Ed) Borasky wrote:
> There are also some serious performance issues with I/O. Xen is a much
> better way to go in the long run. See

Did you read his post that said that wasn't an option? I hope not,
because it would be annoying if you posted this anyway.
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