Veritas-bu

[Veritas-bu] Alternate methods for catalog vackup - egBCVsna pshots?

2006-06-27 08:27:00
Subject: [Veritas-bu] Alternate methods for catalog vackup - egBCVsna pshots?
From: simon.weaver at astrium.eads.net (WEAVER, Simon)
Date: Tue, 27 Jun 2006 13:27:00 +0100
Hi Tim
Well this is very interesting, because I went down a very similar route to
this (excluded images from the NORMAL catalog backup) and got told that this
is NOT the best way for recovering your system, because it could invalidate
the images with the volume database.

Hence why, occasionly I took full offline backups of the DB, stored on a
drive and placed in a safe.

If there is absolutely no way you can take an offline backup, then yes
create a policy for images and exclude everything else.

But, if you got a 24x7 setup, you have 2 other choices:

1) Upgrade to 6.0 - allows for hot online backups exactly for environments
which operate 24x7
2) Allow a time allocation for a catalog backup

I have an environment, which works the same way, and never, EVER gets chance
for a good catalog backup - however after going through their configuration,
I have allocated a 3 hour window for the catalog to run (only takes an
hour!).

Where possible, see if you can make a window of oppurtunity - if not, run
the ONLINE IMAGES POLICY backup to tape (or disk for that matter) and
capture the rest on the catalog.

If it was me (personally), I would deactivate policies, allow the catalog to
run and then reactivate the jobs! Its nice to have assurance the catalog is
all in one piece of media / drive and captured correctly.

BTW, no harm was intended about your importance of the catalog backup :-) I
hope I did not come across as rude.

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 

EADS Astrium Limited, B32AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email: Simon.Weaver at Astrium-eads.net



-----Original Message-----
From: timbiller at hsbc.com [mailto:timbiller at hsbc.com] 
Sent: 27 June 2006 13:16
To: WEAVER, Simon
Cc: veritas-bu at mailman.eng.auburn.edu
Subject: RE: [Veritas-bu] Alternate methods for catalog vackup -
egBCVsnapshots?


Hi Simon,.

Thanks for the reply. I'm in no doubt whatsover of the importance of a valid
catalog backup. The reason for the issue is simple - there are
50-100+ jobs running at any time of day. There is never any inactivity 
50-100+ for
long enough to get the 80 gigs-worth of catalog data  backed up via the
normal method.

I had a long chat earlier with a ex-Veritas pal about this and he came up
with a plan as a workaround. (He called it the Devon Method, as that's where
all the best fudge is made ;-) )

Firstly, yes, backup to disk.  That's easy, the database volumes are already
on SAN disk, so backup to disk is a trivial effort for us here. Then
reconfigure the catalog backups as follows:

master:/usr/openv/netbackup/db/images/master
master:/usr/openv/var
master:/usr/openv/volmgr/database
master:/usr/openv/netbackup/db/[A-Zabd-hj-z]*

This will exclude the images completely. Then configure two standard
policies to backup up the image directories ONLY as a daily FULL with a two
day retention alternating between the two. A copy could be taken to tape and
offsited from those.

How about that?

Tim Biller
Technical Specialist (Storage) (HBEU-SS-SMMIDLI)

Tel:   +44 (0) 1226 353574 internal (7311 5853)
Cell:  +44 (0) 7740 191329
Fax:   +44 (0)1226 353368 internal (7311 3368)


                                                                           
             "WEAVER, Simon"                                               
             <simon.weaver at ast                                             
             rium.eads.net>                                             To 
                                       Tim_BILLER/HBEU/HSBC at notesemea.com, 
             27/06/2006 12:45          veritas-bu at mailman.eng.auburn.edu   
             Mail Size: 6631                                            cc 
                                                                           
                                                                   Subject 
                                       RE: [Veritas-bu] Alternate methods  
                                       for catalog vackup - eg  BCVsn      
                                       apshots?                            
                                                                    Entity 
                                       HSBC Bank plc - HBEU                
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





Tim
>From a professional point, I would be investigating EXACTLY why your Catalog
backups are failing! This is so, so important.

Post any details onto the list, and we can all try and help.

Alternatively, I occasionly take OFFLINE backups of the Catalogue and store
them onto a drive, which in turn is placed in a safe. However, this is
really a last resort.

Can you try doing a catalog backup to DISK rather than tape (assuming that
is how you were doing it?).

Hopefully we can try and help :-)

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator

EADS Astrium Limited, B32AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email: Simon.Weaver at Astrium-eads.net



-----Original Message-----
From: timbiller at hsbc.com [mailto:timbiller at hsbc.com]
Sent: 27 June 2006 10:34
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Alternate methods for catalog vackup - eg
BCVsnapshots?


Our catalog backups hardly every complete as there is never inactivity on
the Master. (5.0 MP5 on AIX 5,3)

 Does anyone know of any mechanism (such as a BCV snap) to take a point in
time catalog backup and more importantly, would this actually work?

Thanks.

Tim Biller
Technical Specialist (Storage) (HBEU-SS-SMMIDLI)


Tel:   +44 (0) 1226 353574 internal (7311 5853)
Cell:  +44 (0) 7740 191329
Fax:   +44 (0)1226 353368 internal (7311 3368)





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