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Limitations for NetBackup Master in a VMware 5.x Guest

Created: 21 Jan 2013 • Updated: 30 Jan 2013 | 4 comments
CKWallace's picture
This issue has been solved. See solution.

We have several customers with NetBackup Master Servers in a VMware guest.  Most of these environments are less than 20 FETB and have catalogs less than 100GB.  We have a site at 40FETB with a catalog of over 300GB.  I fully understand limitation for connection of tape drives and the like, but am wondering of scale is an issue for bigger sites.  I should be able to get "whatever is required" for CPU and RAM.  (NetBackup 7.5, VMware 5.x, Cisco UCS Chassis, Windows 2008 R2 and NetApp SAN)

Thanks in advance for your input. - Clark Wallace, LOGICALIS

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RamNagalla's picture
  Support for NetBackup 7.x in virtual environments


may be above does would help you ..

CKWallace's picture

Nagalla - thanks for the response.  I access to all of these documents.  I was hoping for some real life feedback on when does the NetBackup Master server get too big to run on a VM.

Thanks - Clark

Marianne's picture

Maybe you can use these docs as a guideline:

Designing your backup system How to estimate the number of master servers needed


When making an estimate, consider the following:

  • Type of processor

    For a NetBackup master server, Symantec recommends using multiple discrete processors instead of a single multi-core processor. The individual cores in a multi-core processor lack the resources to support some of the CPU-intensive processes that run on a master server. Two physical dual-core processors (for a total of four processors) are better than a single quad-core processor. 

As you can see, a master needs multiple physical cpu's. 
A sign of a master server that is battling to cope is normally seen during starting phase of jobs - i.e. the time it takes to allocate resources. Delays of 5 - 15 min (or longer) between identifying and allocating resources can be considered as 'taking strain'.

Hope this helps somewhat...

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

CKWallace's picture

Thanks for the input.  We actually decided to stay physical, primarilly so we have the NetBackup master self contained and not imbedded in the infrastructure it is protecting.

-Clark Wallace