Networker

Re: [Networker] AW: [Networker] removing tapes after backup

2005-12-15 15:25:58
Subject: Re: [Networker] AW: [Networker] removing tapes after backup
From: Tim Mooney <mooney AT DOGBERT.CC.NDSU.NODAK DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 15 Dec 2005 14:22:33 -0600
In regard to: Re: [Networker] AW: [Networker] removing tapes after backup,...:

Imagine...it is setup!!

idle device timeout: 10;

Doesn't work!  Tapes never unmount themselves unless another tape needs
the drive!

Kathleen-

This issue was just discussed a couple weeks ago, but it seems that we
never get everyone on the same page, so people still reply to questions
like this and say "oh, just use the idle device timeout."  That answer
is *wrong* for most people.

Here's the deal: unless the jukebox devices are *shared* between multiple
storage nodes (including your server), the "Idle device timeout:" setting
DOES NOT APPLY.

That setting is *only* used for shared devices.  For the situation where
you only have one system talking to the jukebox, the "Idle device
timeout:" is ignored.

This is clearly stated in the entry for "Idle Device Timeout" when
you do a "Help->On Window" with the "Jukeboxes" Window open in the UNIX Gui. I would assume that the Windows Admin GUI has the same
information.

The only way to do what you want to do in a non-shared jukebox environment
is to periodically (or after your backups finish) run nsrjb to unmount and
eject the tapes.  That's what we do.

Tim
--
Tim Mooney                              mooney AT dogbert.cc.ndsu.NoDak DOT edu
Information Technology Services         (701) 231-1076 (Voice)
Room 242-J6, IACC Building              (701) 231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164

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