Netbackup 5220 - VNX LUN trespass while backup

[JKIM1]

Hi All,

Does anyone have any ideas on how NetBackup appliance works with 4 paths to SAN fabrics, ie. round-robin or fixed path to pull data from SAN?

At the moment, I sometimes get a LUN trespass after NetBackup finishes backup for the night.

EMC VNX has its own mechanism to do implicit trespass when more I/O request is coming from non-optimal path.

For example, SP A is the owner of LUN A. Netbackup pulls data from the path connected to SP B. VNX triggers implicit trespass.

Cheers,

John

[Nicolai]

Veritas Volume Manager (VxVM)  has the ability to control multipathing to a EMC VNX device. Volume Manager is used internaly in the 5230 appliance.

I found this document for reference : http://www.cpuservice.pl/pub/EMClinux.pdf

I do not if this is supported by Symantec at all.

[quebek · Accepted solution]

Well with NBU 2.6.0.2 this is supported on appliance (5230 for sure).

Check out this screen shot

As you can see this is taken from NetBackup apliances 2.6.0.2 release notes...