Veritas-bu

Re: [Veritas-bu] Script to label expired tapes in a VTL

2007-09-24 15:15:02
Subject: Re: [Veritas-bu] Script to label expired tapes in a VTL
From: "Curtis Preston" <cpreston AT glasshouse DOT com>
To: "Paul Keating" <pkeating AT bank-banque-canada DOT ca>, "Clem Kruger" <clem AT re-thinking-it DOT com>, "Liddle, Stuart" <liddles AT amgen DOT com>, <VERITAS-BU AT mailman.eng.auburn DOT edu>
Date: Mon, 24 Sep 2007 14:49:32 -0400

Paul said:

 

>But in other cases, yes, as you said, even though Netbackup expires a VT, the VTL doesn't know it's "allowed" to delete the pointers for the VT untill NBU does a bplabel on that Cart ID.

 

Or starts writing to it from the beginning, such as when it reuses a tape.  Either way, you start writing from the beginning of the tape, which tells the VTL to delete the old space.

 

 

---

W. Curtis Preston

Backup Blog @ www.backupcentral.com

VP Data Protection, GlassHouse Technologies


From: Paul Keating [mailto:pkeating AT bank-banque-canada DOT ca]
Sent: Monday, September 24, 2007 11:12 AM
To: Clem Kruger; Liddle, Stuart; Curtis Preston; VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Script to label expired tapes in a VTL

 

unless the VTL has the option to "free" the disk space on a schedule, which it sounds like what Stuart is saying about the NetApp.

ie, your tape retention is set to 3 weeks, then your VTL essentially has a 3+ week "time to live" on pointers.

 

would be kinda scarey if you entended the retention on a tape and your VTL doesn't "get the message".

 

But in other cases, yes, as you said, even though Netbackup expires a VT, the VTL doesn't know it's "allowed" to delete the pointers for the VT untill NBU does a bplabel on that Cart ID.

 

Paul

 

 

--

-----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 Clem Kruger
Sent: September 23, 2007 1:18 PM
To: Liddle, Stuart; Curtis Preston; VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Script to label expired tapes in a VTL

Hi Stuart,

 

In my experience we had to as the “DISK SPACE” was still in use!

 

 

 

 

 

Kind Regards,

Clem Kruger-bu

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