[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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