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?
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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