Veritas-bu

[Veritas-bu] NBU support for mixed media

2000-08-31 19:13:51
Subject: [Veritas-bu] NBU support for mixed media
From: Bob Bakh bbakh AT veritas DOT com
Date: Thu, 31 Aug 2000 16:13:51 -0700
Actually you would not need separate media servers just separate Storage
Units, Storage Units are Media type specific.  So a 9840 and DLT and AIT
could reside in the same library attached to the same system, with one tape
pool, one Volume Group, but 3 Storage Units.

You will also want two different Storage Units if you mix DLT 7000 and DLT
4000, because you really don't want those tapes mixing, that is why there
are DLT, DLT2 and in 3.4 DLT3 tape types in NBU.

Bob

-----Original Message-----
From: David A. Chapa [mailto:david AT datastaff DOT com]
Sent: Wednesday, August 16, 2000 12:47 PM
To: KevinB AT paccessglobal DOT com
Cc: david AT datastaff DOT com; mike_andres AT cnt DOT com;
veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] NBU support for mixed media


You are right, NetBackup doesn't care about what is 
contained within the physical robot.  It only becomes 
concerned when you begin to logically create the 
storage units.  For instance, Media Server (1) having 
all DLT technology in its storage unit and Media Server 
(2) having all 9840.  They can be in the same physical 
tape library, but must be in separate storage units by 
definition.  But I believe you do need to have multiple 
media servers.

This configuration is quite common in larger sites.

Incidentally with regards to the media question, 
netbackup tracks that based on the robot residence 
(such as TLD(0) TLD(1), etc.), therefore, it knows 
where the tapes belong.  Furthermore, from an 
administrative point of view a descriptive volume pool 
or volume group would probably help in this matter as 
well.

David

Quoting KevinB AT paccessglobal DOT com:

> I have not done this (or known anyone that has) so I 
am not trying say this
> can be done, but why should NBU care if you have 
different media/drives in
> the same robot.  When you configure each drive in the 
robot you have to
> define what type of drive it is.  It would seem that 
the only issue would
> be
> knowing which slot contained which type of media.  In 
a dream world the
> robot should track that and pass it on to NBU.  In a 
practical work around
> world, it would seem that if you set up separate 
pools or volume groups for
> the different media it would work.  Has anyone tried 
it?  It seems that
> with
> different drive technologies coming on and HSM 
available this would be an
> important feature.
>
> -----Original Message-----
> From: David A. Chapa [mailto:david AT datastaff DOT com]
> Sent: Wednesday, August 16, 2000 10:08 AM
> To: Mike Andres
> Cc: 'Veritas NBU'
> Subject: Re: [Veritas-bu] NBU support for mixed media
>
>
> Ture, you may only have similar physical devices 
within
> a storage unit.  You're assumption is correct.
>
> David
>
> Quoting Mike Andres <mike_andres AT cnt DOT com>:
>
> > Hi,
> >
> >      Does anyone know if NBU supports mixed media
> (9840 and 9490) in an STK
> > Powderhorn library?  Would you just set up a
> different storage unit for
> > each
> > drive type?
> >
> >
> > thanks,
> > -mike
> >
> > _______________________________________________
> > Veritas-bu maillist  -  Veritas-
> bu AT mailman.eng.auburn DOT edu
> >
> 
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-
> bu
> >
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> David A. Chapa                847 413 1144 p
> Director of Technology        847 413 1168 f
> DataStaff, Inc.               http://www.datastaff.com
> nbu-lserv AT datastaff DOT com       majordomo AT datastaff DOT com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> _______________________________________________
> Veritas-bu maillist  -  Veritas-
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bu
> 



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
David A. Chapa                847 413 1144 p
Director of Technology        847 413 1168 f
DataStaff, Inc.               http://www.datastaff.com
nbu-lserv AT datastaff DOT com       majordomo AT datastaff DOT com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu



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