Hampus,
Sounds very interesting, what sort of unwanted
files are you talking about ?
Dave
From: Hampus Lind
[mailto:hampus.lind AT rps.police DOT se]
Sent: 09 July 2007 21:42
To: 'Kevin Whittaker';
bobbyrjw AT comcast DOT net; Clooney, David; veritas-bu AT mailman.eng.auburn DOT edu
Subject: SV: [Veritas-bu] Catalog
performence to tape
Hi,
I have come across performance issue in the catalog several
times.. I all cases there have been files or dir`s under the images catalog
which should not bee there.. After finding those files and removing them, the
speed was back to normal.
I did not find these files in any log, they did not show up
in “bpdbm –consistency 2” check either.. The bpdbm command
never finished at all..
We had about 70 GB in the images catalog and the catalog
backup took about 4 hours to complete when we had “unauthorized”
files in there.. After removing the files the backup took about 1 hour to
complete.
It`s not a fun job to do, looking trough the images
cataloges, but it always payoff..
Good luck!
-----Ursprungligt meddelande-----
Från:
veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu]
För Kevin Whittaker
Skickat: den 9 juli 2007 21:40
Till: bobbyrjw AT comcast DOT net;
Clooney, David; veritas-bu AT mailman.eng.auburn DOT edu
Ämne: Re: [Veritas-bu] Catalog
performence to tape
Actually, yes I
have. I am in the process of starting the upgrade to 6.x and ran the nbcc
tool. Everything has come back cleaned.
Kevin
From: bobbyrjw AT comcast DOT net
[mailto:bobbyrjw AT comcast DOT net]
Sent: Monday, July 09, 2007 3:39
PM
To: Kevin Whittaker; Clooney,
David; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Catalog
performence to tape
Have you run a consistency check to see if you
have bad image files?
-------------- Original message --------------
From: "Kevin Whittaker" <Kevin.Whittaker AT syniverse DOT com>
I wish had an
answer for you, but alas I have almost the same issue.
I am running
Solaris 9, NB 5.1 MP6 with a catalog size of 40GB. The catalog backup
takes around 2.5 hours to backup. I even turned up logging and found it
spent all of it's time in the images directory.
I am even running
SAN attached 9940B tape drives.
If I can not find
an answer, I am considering using SRDF from EMC to duplicate the file system of
the catalog images. I just have to figure out how to pause backups long
enough to break the SRDF connection and then restart them. Then I can
backup the duplicate that will be located in our DR site.
Anyway, does
anybody have any idea how to speed up the backups of the catalog?
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Clooney, David
Sent: Wednesday, July 04, 2007
9:34 AM
To:
veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Catalog
performence to tape
Hi all
Apologies for not participating in this list as
much as I used to however I have been totally inundated.
Was wondering whether someone could shed some
light on an issue I am currently faced with.
One of our Netbackup environments currently
residing on Solaris 8 64 bit NBU 5.1 MP6 has a catalog size of approx 50
Gb
The NBU catalog backup is taken over three
hours to complete which is madness.
What I have discovered is that when the catalog
backup runs the use of SIZE_DATA_BUFFERS and NUMBER_OF_DATA_BUFFERS is
excluded. I can understand this as the catalog should be outside the realms of
NBU essentially.
When I create a policy based backup of the
catalog mount point the backup flies through in no time at all, as I presume
the buffer settings are utilised.
For a further test I have used Solaris’s
tar to backup the same mount point to tape and this too takes forever and a
day.
So I'm sort of concluding that the OS in some
way, shape or form is letting me down.
1. Can
anyone think of anything or point me in the right direction as to tune the OS
so I can increase throughput to our SAN attached 9940B's ?
2. On
another topic I was going to try and setup rsync to take copies of the catalog,
would it be detrimental to the NBU environment if I gave the rsync’s user
group read access to the catalog mount point ?
Thanks in advance
Dave
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