Re: [Veritas-bu] Data Expiration

2013-03-08 15:05:37
Subject: Re: [Veritas-bu] Data Expiration
From: Jim VandeVegt <Jim.Vandevegt AT physiciansmutual DOT com>
To: "veritas-bu AT mailman.eng.auburn DOT edu" <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Fri, 8 Mar 2013 14:01:22 -0600
My suspicion is that value (media data expiration) is a value that can only increment. It is a convenience value that really doesn't mean anything concrete, since images expire, not media. (Well, media can expire, but for different reasons, and media expiration means NBU will not write to it any more and has nothing to do with the images on the media.)
Any operation on the tape that involves an expiration time:
changing expiration of an image,
writing a new image, etc.,
causes the expiration of that image to be compared to the media data expiration time.
If the expiration of the image has a later time stamp than the media data expiration, then the media data expiration is set equal to the image expiration.
The media will still return to scratch once all the images have expired, during the daily "deassign empty" run.

Jim VandeVegt | Technical Integrator, ETG

Physicians Mutual | 2600 Dodge Street | Omaha, NE 68131

402.930.2649 | | Jim.VandeVegt AT PhysiciansMutual DOT com


Insurance for all of us.™

health | life | retirement


From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Infantino, Joe [JINFANTINO AT intersil DOT com]
Sent: Friday, March 08, 2013 10:41
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Data Expiration

NBU 6.5.6

Windows 2008 x64

I used the following command to change the retention of images from 1 year to 6 months but the Data Expiration date shown on the media in the GUI or when running bpmedialist (see below for syntax) did not change. 

bpexpdate -recalculate -backupid [name_time] -ret 6 -force

bpmedialist -m [media_id]

I did verify both from the GUI (Reports -> Tape Reports -> Images On Tape, and using bpimmedia -mediaid [media_id]) that all images on the media have had their retention changed.

Any ideas?

Joe Infantino

MCP, MCSA, Security+, ITILv3

Senior Systems Analyst

Security and Server Operations

Intersil Corporation

email: jinfantino AT intersil DOT com

office: 321-724-7119

fax: 321-729-1186

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