Veritas-bu

Re: [Veritas-bu] VM Master / Media Servers

2008-05-23 11:07:56
Subject: Re: [Veritas-bu] VM Master / Media Servers
From: "Dave Carpe" <david_carpe AT symantec DOT com>
To: "Martin, Jonathan" <JMARTI05 AT intersil DOT com>, "Curtis Preston" <cpreston AT glasshouse DOT com>, "WEAVER, Simon (external)" <simon.weaver AT astrium.eads DOT net>, <Bluejay AT fujigreenwood DOT com>, <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Fri, 23 May 2008 07:44:20 -0700
OK.

The OS Compatibility Guide will show you that VMware supported as a
client only and then references the best practices for backing up VMware
document:

http://support.veritas.com/docs/278064

The best practices document discusses running a media server within
VMware on page 12:

http://support.veritas.com/docs/285515

This explains the problems and the fact that VMware does not support
Fibrechannel attached tape drives.

NBU PM is looking at how we can support NBU Media servers on Virtual
Machines for the future but right now, if you do it and have problems,
Tech Support will make a best effort to help but it is ultimately
unsupported.

Best Regards,

Dave

David K. Carpe
Principal Systems Engineer
Symantec Corporation
Office: 646.487.6012 
Mobile: 908.963.6818
Home Office: 973.940-1805
email: david_carpe AT symantec DOT com
 
 

-----Original Message-----
From: Martin, Jonathan [mailto:JMARTI05 AT intersil DOT com] 
Sent: Friday, May 23, 2008 8:24 AM
To: Dave Carpe; Curtis Preston; WEAVER, Simon (external);
Bluejay AT fujigreenwood DOT com; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] VM Master / Media Servers

Can you please be more specific on your massive I/O problems? Are we
talking about SCSI?  Fiber?  Tape?  Disk?  VMWare claims 60,000 I/O per
second per ESX Host (assuming your disk can keep up) and explicitly says
no tape drives for their configs.  I'd assume your problems are related
to tape and not to disk?
 
-Jonathan

________________________________

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu on behalf of Dave Carpe
Sent: Thu 5/22/2008 1:48 PM
To: Curtis Preston; WEAVER, Simon (external); Bluejay AT fujigreenwood DOT com;
veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VM Master / Media Servers



It is not supported. There are massive problems with the I/O.

David K. Carpe
Principal Systems Engineer
Symantec Corporation
Office: 646.487.6012
Mobile: 908.963.6818
Home Office: 973.940-1805
email: david_carpe AT symantec DOT com



-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Curtis
Preston
Sent: Thursday, May 22, 2008 1:13 PM
To: WEAVER, Simon (external); Bluejay AT fujigreenwood DOT com;
veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VM Master / Media Servers

It works for me just fine, but I don't think it's supported.



Curtis Preston  |  VP Data Protection  
GlassHouse Technologies, Inc.
 
T: +1 760 710 2004 |  C: +1 760 419 5838 |  F: F: +1 760 710 2009  
cpreston AT glasshouse DOT com |  www.glasshouse.com
Infrastructure :: Optimized

-----Original Message-----
From: WEAVER, Simon (external) [mailto:simon.weaver AT astrium.eads DOT net]
Sent: Wednesday, May 21, 2008 11:24 PM
To: Curtis Preston; Bluejay AT fujigreenwood DOT com;
veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] VM Master / Media Servers


Hi Curtis
Well guess what...... there is a client that is looking at VM'ing Master
and Media Servers and want to use a tape drive or robot!

I am under the impression its not supported or works. Your comments seem
to reflect this may not be the case.

Can you clarify?

Simon

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Curtis
Preston
Sent: Wednesday, May 21, 2008 10:31 PM
To: Bluejay AT fujigreenwood DOT com; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VM Master / Media Servers

When you say they don't support, you must mean that they won't give you
support on it.  All you have to do is create virtual scsi devices for
each tape drive/robot device, then you see the robot and drives in the
guest OS. 

Admittedly, I haven't done it for production, but I haven't found it to
be too difficult or unreliable.

BUT, I'm trying to figure out why anyone would do that in production.
Performance SUCKS!



Curtis Preston  |  VP Data Protection
GlassHouse Technologies, Inc.
 
T: +1 760 710 2004 |  C: +1 760 419 5838 |  F: F: +1 760 710 2009
cpreston AT glasshouse DOT com |  www.glasshouse.com Infrastructure ::
Optimized

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
Bluejay AT fujigreenwood DOT com
Sent: Tuesday, May 13, 2008 4:10 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VM Master / Media Servers

> Is Symantec actually going to be supporting a Virtual Machine as a
> Master or Media Server (San Media too), which can use SSO to share a
> tape library?

A recent exercise with VMware a few months ago brought to light that
VMware does NOT support guest access to SAN-based tape drives, and has
no plans to do so. Some fiddling around managed to get a guest to see
such tape drives, but they did not work reliably at all.

                                                                      -
Bluejay Adametz

"I took off my watch and found I had all the time in the world."
- The Association

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