Networker

Re: [Networker] Two jukeboxes using same pools

2006-08-17 11:14:48
Subject: Re: [Networker] Two jukeboxes using same pools
From: Stuart Whitby <swhitby AT DATAPROTECTORS.CO DOT UK>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 17 Aug 2006 16:14:48 +0100
Another alternative which will avoid the licensing restriction is to delete the 
old jukebox definition and leave a drive attached as a standalone drive.  If a 
restore requests the tape, you can manually load that tape using sjirdtag/sjimm 
to identify the slot and load the tape.  This depends on how your organisation 
works regarding restores though.  If users request restores from you, then you 
can do this.  If they do them themselves, probably a bit tougher to implement.
 
Cheers,
 
Stuart.

________________________________

From: Legato NetWorker discussion on behalf of Krishnan, Ramamurthy
Sent: Thu 17-Aug-06 15:49
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Two jukeboxes using same pools



We have tried reading LTO-1 with LTO-2 drives which did work.  Marking
all the LTO-1 tapes as Read-only AND Manual will avoid the trouble of
using two jb licenses until the old library is retired. 

When we did the migration to LTO-2, we physically marked all the LTO-1
tapes read-only.  This was a belt and braces approach, even if NetWorker
takes a tape accidentally it can't overwrite the contents as its
physically protected.

Rgds, Ram.

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of Peter Viertel
Sent: 17 August 2006 15:40
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Two jukeboxes using same pools

We just did this when migrating from SDLT to LTO in a fairly small
site.. Only a few small tricks needed...

A) Two jukeboxes will need two autochanger licenses.  
B) if you do have more than one library, then nsrjb works slightly
differently, your scripts may break - you can ensure you use -j
{jukebox} always in your scripts and also you can set a cmdline variable
NSR_JUKEBOX to the name of your favourite one...
C) if you set the drives in the old jukebox to be read-only then you
wont have any problems with the system attempting to use the old tapes.

Personally, I'd be taking advantage of the fact that LTO-3 drives can
read LTO1 media (ok that's what the brochure says, does anyone have any
exerience here?) ...   Why not just decomm the old jukebox - put all
your LTO1 tapes on a shelf or in the new jukebox, mark all the LTO1
tapes as manual, and delete with nsrmm when the tapes expire.

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT listserv.temple DOT edu]
On Behalf Of Thomas Staudenmaier
Sent: Thursday, 17 August 2006 11:37 PM
To: NETWORKER AT listserv.temple DOT edu
Subject: [Networker] Two jukeboxes using same pools

Hello list,

my intention is to retire the old jukebox (LTO1 drives) and replace it
with a new box with LTO3 tape drives.
Until the retention period for the data on LTO1 media is expired I plan
to attach both jukeboxes to the Networker server.

All backups shall go to the new box, the old box shall be available only
for restore. I guess this should achieve this:
- label new LTO3 media into exisiting pools
- set all LTO1 media to read-only

Is there a flaw in this plan?
Can Networker handle media of the same pool in two jukeboxes in this
way?


Thanks for your time.

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