I have a ticket open with Symantec for the official answer.  I will
reply with the information they provide.  The info that I have suggests
that it will be fixed in 6.0.

 

http://support.veritas.com/docs/273806
<http://support.veritas.com/docs/273806> 

 

Formal Resolution:
VERITAS Engineering is working towards providing a permanent solution
for this issue. Until this issue has been resolved with a future release
of NetBackup, VERITAS strongly recommends configuring your environment
to ensure NDMP backups do not exceed 1 terabyte in size. VERITAS
Engineering has scheduled to include a permanent fix for this issue with
NetBackup 6.0 (scheduled for release late Q4 of 2005) and NetBackup 5.1
Maintenance Pack 3A, available at:
http://support.veritas.com/menu_ddProduct_NBUESVR_view_DOWNLOAD.htm
<http://support.veritas.com/menu_ddProduct_NBUESVR_view_DOWNLOAD.htm>  .

 

 

________________________________

From: bobbyrjw at comcast.net [mailto:bobbyrjw at comcast.net] 
Sent: Tuesday, April 10, 2007 9:58 AM
To: Scott Jacobson; veritas-bu at mailman.eng.auburn.edu; Adams, Dwayne
Subject: Re: [Veritas-bu] maximum backup streams for SAN data

 

Kate supplied it.  I have an 5.1MP6 master that still sees it.  May have
something to do with the client version.

 

 

http://support.veritas.com/docs/273806
<http://support.veritas.com/docs/273806>  

 

Products Applied: 
 NetBackup BusinesServer 4.5, 4.5 (FP6), 4.5 (FP7), 4.5 (FP8), 4.5
(MP6), 4.5 (MP7), 4.5 (MP8)
 NetBackup DataCenter 4.5, 4.5 (FP6), 4.5 (FP7), 4.5 (FP8), 4.5 (MP6),
4.5 (MP7), 4.5 (MP8)
 NetBackup Enterprise Server 5.0, 5.0 MP1, 5.0 MP2, 5.0 MP3, 5.0 MP4,
5.1, 5.1 MP1, 5.1 MP2, 5.1 MP3 (Fixed)
 NetBackup Server 5.0, 5.0 MP1, 5.0 MP2, 5.0 MP3, 5.0 MP4, 5.1, 5.1 MP1,
5.1 MP2, 5.1 MP3 (Fixed)

~Kate

 

        -------------- Original message -------------- 
        From: "Scott Jacobson" <SJACOBSO at novell.com> 

        Bobby,

         

        I'd be interested in knowing of a link to that documentation/bug
from Veritas.

         

        Scott
        
        >>> <bobbyrjw at comcast.net> 4/10/2007 9:51 AM >>>

        If you are using NB5.1, don't make them larger than 1TB.  There
is a reported bug that documents that even though you get good backups,
you can't restore.

         

        I have seen the restores fail.  There is not a way to get it off
of the tape.

         

        Bobby.

         

                -------------- Original message -------------- 
                From: "Adams, Dwayne" <AdamsDC at medsch.ucsf.edu> 

                Hello,

                 

                I am designing a new backup environment.  I have some
NDMP data to backup with volumes that can grow up to 5TB each. Should I
separate the volumes into to multiple streams for NDMP backups in excess
of a TB? I have read that this is a best practice but I would like to
know what people are doing in the real world.  I am aware of the
benefits of shrinking the dataset if a job fails. =)

                 

                Thanks in advance,

                 

                Dwayne Adams

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