I'm not yes seeing this as a problem,
Doesn't netbackup Storage units consider all available drives, of a particular
density eg HCART2, for the library eg ACS 0, that are configured in netbackup
say 10 of them, fair game for any storage unit.
if the storage unit "staging_A" is configured for a maximum of 4 drives then
that's all it can use,
If the storage unit "backups_C" is configured for a maximum of 10 drives, then
it will use all of the drives.
Should the priority configured for staging (99999 by default isnt it?) mean
that it gets it's 4 drives when needed and backups can use them when not ?
Adam.
-----Original Message-----
From: rcarlisle [mailto:rcarlisle AT serverwarecorp DOT com]
Sent: Thursday, 18 October 2007 7:36 PM
To: 'Curtis Preston'; 'Kevin Whittaker'; Mellor, Adam A.; VERITAS-BU AT
mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Netbackup 6.5 - disk staging Units
I can think of an issue. When you create a storage unit, you need to define
what drives are in it. Let's say I have a tape library with 10 drives, but I
only want to use 4 of them for disk staging. If I create a storage unit, I am
limited to those four physical drives. If I want to leave those drives also
available for backups - storage unit with 10 drives in it- A backup may pick on
of my staging unit drives, and now I am limited to three drives even though
there may be available drives in the library, just not defined in that
particular storage unit. The touch file allowed for greater flexibility for
staging to pick any four of the ten drives available.
Reneé Carlisle
ServerWare Corporation
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Curtis
Preston
Sent: Thursday, October 18, 2007 4:07 AM
To: Kevin Whittaker; Mellor, Adam A.; VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Netbackup 6.5 - disk staging Units
What's wrong with creating an additional storage unit?
---
W. Curtis Preston
Backup Blog @ www.backupcentral.com
VP Data Protection, GlassHouse Technologies
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Kevin
Whittaker
Sent: Wednesday, October 17, 2007 7:47 AM
To: Mellor, Adam A.; VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Netbackup 6.5 - disk staging Units
I am scheduled to upgrade from 5.1 to 6.5 and would be very interested
in the answer to this question. I checked the documentation and in the
Veritas NetBackup 6.5 Admin Guide for UNIX and Linux Vol 1 had the
answer... I think
On page 250: It says that the final destination storage unit will
control the "maximum concurrent write drives". That explanation was on
page 231.
This is not good! I do not want to have to create a new storage unit to
control the # of drives that the copy from disk to tape will use.
Has anybody found out anything more on this issue?
Kevin
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Mellor,
Adam A.
Sent: Wednesday, October 17, 2007 7:32 AM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup 6.5 - disk staging Units
Good evening,
I have another NBU 6.5 Question,
I have just completed my 5.1 to 6.5 upgrade, no real drama's with the
upgrade.
I am monitoring the progress of the scheduled backups to see how much
carnage there is.
My disk staging units are using all of the available tape drives,
previously in NBU 5.1 I was able to limit this using the
MAX_STAGING_JOBS touchfile.
Is there some way to limit the number of jobs for de-staging disk
backups in 6.5 ?
Thanks,
Back to monitoring logs...
Adam Mellor
Senior Unix Support Analyst
CF IT TECHNOLOGY SERVICES
Woodside Energy Ltd.
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