Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU
2008-04-10 02:44:04
agreed! as stated, warrants investigation. It will only
come back to bite you if you cannot restore it...
I’d amend point 3 to
say “does NOT ALWAYS mean”.
There are many OS and
filesystem level backups that are complete despite status 1.
However, having a status 1 on a database backup can be a real
killer…
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Stuart Liddle Sent: Wednesday, April 09, 2008 3:52
PM To:
VERITAS-BU AT mailman.eng.auburn DOT edu Subject: Re: [Veritas-bu] Top 20 (or so)
misunderstood things about NBU
I think I would agree
with all of what Ed has stated here. However, I think that these points
would apply to ANY backup product and not just NBU.
Since the question was
about the “top 20 (or so) misunderstood things about NBU”, I’d have to add the
following:
1)
Yes, there is a command line
interface! The GUI is NOT the only way to do things with NBU. (yeah,
this might be generic, but…)
2)
Multiplexing and Multistreaming are not
the same thing and both need to be tuned properly in order to optimize your
backups.
3)
A return code of “1” on a backup does
NOT mean that the backup has failed. Nor does it mean that the files that
could not be backed up are essential to the recovery of the system. (This
DOES mean that the backup admin needs to have a discussion with the system
admins and application support folks about what files can be safely ignored on
backups. Building exclude lists helps.) I had to explain to a
manager once why we treated a return code “1” (partial success) the same as
return code zero (successful). His thought was that he wanted everything
to be zero return code!
4)
Yes, NBU includes reporting, but it is
no substitute for a 3rd party reporting tool like Bocada.
(another item that could be about any backup tool).
I’ll have to think up
some other NBU specific items and add to this list later.
-stuart
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Ed Wilts Sent: Tuesday, April 01, 2008 8:11
AM To: Curtis
Preston Cc:
VERITAS-BU AT mailman.eng.auburn DOT edu Subject: Re: [Veritas-bu] Top 20 (or so)
misunderstood things about NBU
On Mon, Mar 31, 2008 at 4:48 PM, Curtis Preston <cpreston AT glasshouse DOT com>
wrote:
What are the top 5/20/30 things about NBU that you
think people get wrong?
1. People think that you're
working on a backup system. You're not - you're working on a
*recovery* system. If you can't recover, backups are
useless.
2. File system backups are not a replacement for bare
metal restore. It is usually not acceptable to just do a fresh install,
restore files, and expect to be back to where they're started
3.
Error messages really are important. Check them every day or you'll
eventually discover that failures were missed in the noise and backups haven't
run in a long time. When you do a restore is not the time to check to see
if backups actually ran.
4. Audits are important. The larger
the environment, the more likely it is that file systems are missed. This
is especially true of clusters. Sometimes it's not the failures that get
you but the lack of attempts.
5. Backing up clusters by physical
host names will cause you grief.
6. Application owners are responsible for ensuring
the application is recoverable. A backup admin, working in a vacuum, can
not help you.
7. Test your restores
regularly.
There are lots more but this is a start...
-- Ed
Wilts, Mounds View, MN, USA mailto:ewilts AT ewilts DOT org
---------------------------------- CONFIDENTIALITY NOTICE: This e-mail
may contain privileged or confidential information and is for the sole use of
the intended recipient(s). If you are not the intended recipient, any
disclosure, copying, distribution, or use of the contents of this information is
prohibited and may be unlawful. If you have received this electronic
transmission in error, please reply immediately to the sender that you have
received the message in error, and delete it. Thank
you. ----------------------------------
This email (including any attachments) may contain confidential and/or
privileged information or information otherwise protected from disclosure.
If you are not the intended recipient, please notify the sender
immediately, do not copy this message or any attachments and do not use it
for any purpose or disclose its content to any person, but delete this
message and any attachments from your system. Astrium disclaims any and all
liability if this email transmission was virus corrupted, altered or
falsified.
---------------------------------------------------------------------
Astrium Limited, Registered in England and Wales No. 2449259
REGISTERED OFFICE:-
Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, England
|
|
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
<Prev in Thread] |
Current Thread |
[Next in Thread>
|
- Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, (continued)
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, Ed Wilts
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU,
WEAVER, Simon (external) <=
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, WEAVER, Simon (external)
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, Smithers, Mike
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, Rusty . Major
Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU, Weber, Philip
|
|
|