Veritas-bu

Re: [Veritas-bu] windows 2008 cluster backups

2010-08-09 19:47:18
Subject: Re: [Veritas-bu] windows 2008 cluster backups
From: Brendan Clover <Brendan.Clover AT unisa.edu DOT au>
To: "judy_hinchcliffe AT administaff DOT com" <judy_hinchcliffe AT administaff DOT com>, "ewilts AT ewilts DOT org" <ewilts AT ewilts DOT org>
Date: Tue, 10 Aug 2010 09:17:05 +0930

To add to Ed’s response, with Windows 2008 you will also need a job for each service or application (or a entry in a job for each service) configured in your cluster unless you have turned strict name checking off (on by default).  Strict name checking means that only connections made through the virtual server name can see the resources (e.g. disks) assigned to the service.

 

An Example

 

Say you have a clustered file server called File_Server which has multiple file server services named accounting_files and sales_files, your Netbackup policy may look something like this:

 

Clients:

 

Accounting_files

Sales_files

 

Backup Selections:

 

All_Local_Drives

 

 

Regards,

 

Brendan Clover

Information Technologist

Systems Infrastructure
University of South Australia
Phone: +61 8 830 23641

Fax: +61 8 830 25800

 

Log your own service calls here: http://www.unisa.edu.au/helpdesk

AskIT documentation and FAQs: http://www.unisa.edu.au/askit

 

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From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of judy_hinchcliffe AT administaff DOT com
Sent: Tuesday, 10 August 2010 5:24 AM
To: ewilts AT ewilts DOT org
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] windows 2008 cluster backups

 

Thanks for the comments – the part about restores – tells me I do want Physical/Physical/Virtual

 

However – note: Physical-2 did NOT give errors for the resources not being there. Which is what I expected (2003 servers I know will give errors)

And in fact ONLY give me 2 jobs C:\ and SCC

 

And I know the cluster works as of right now all resources are on Physical-2 today.

 

 

So I was just wondering if there was that much of a difference in a Cluster from 2003 to 2008.

 

Again thanks for your comments.

 

 

From: Ed Wilts [mailto:ewilts AT ewilts DOT org]
Sent: Monday, August 09, 2010 2:19 PM
To: Judy Hinchcliffe
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] windows 2008 cluster backups

 

On Mon, Aug 9, 2010 at 2:05 PM, <judy_hinchcliffe AT administaff DOT com> wrote:

Need a little info from a windows person on cluster backups.

With 2003 if we did a cluster backup you did

Physical-1 - C:\ and System state

Physical-2 - C:\ and System State

Virtual-3 - All resources that belong to the virtual
And maybe a Virtual-4 and all of its resources.


Now with 2008 - while I was on PTO someone else put in a new clustered server for backups, but did not follow the above method.

Instead they did

Physical-1 - All Local Drives
Physical-2 - All Local Drives

-------

Now the part that surprised me is that
Physical-1 got all the Resources plus the C and SS

And Physical-2 just go the C and SS

-----------------

My question -
Is it still (for 2008 servers) correct to set up a clustered server backup getting both the physical and virtual server names.
Or does it work correctly just doing all local drives on the physical names?



What the new person did works but is wrong.  Your virtual resources are being backed up by physical1.  When the resources migrate to physical2, they'll automatically get full backups.  At restore time, you have to figure out which node the resources were on by searching the backups for both physical1 and physical2 and piecing together your restore recovery.

In addition, you should be seeing status 71 errors for the backups of the resources on physical2 because the disks are seen by bpmount but can't be backed up.

NetBackup makes no attempt to figure out what virtual servers have what resources.  It's why I continue to claim that NBU *tolerates* active/passive clusters but doesn't really *support* them.  The same holds true of Veritas clusters.

   .../Ed

Ed Wilts, RHCE, BCFP, BCSD, SCSP, SCSE
ewilts AT ewilts DOT org

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