Forum Discussion

JKIM1's avatar
JKIM1
Level 3
12 years ago
Solved

Netbackup 5220 - VNX LUN trespass while backup

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

Backup and Recovery
NetBackup
Not Applicable
  • quebek's avatar
    quebek
    12 years ago

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

    Check out this screen shot

    dmp.png

     

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

2 Replies

Sort By
  • Nicolai's avatar
    Nicolai
    Moderator
    12 years ago

    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's avatar
    quebek
    Moderator
    12 years ago

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

    Check out this screen shot

    dmp.png

     

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