Networker

Re: [Networker] Stage savesets from AFTD to tape

2009-11-11 15:58:46
Subject: Re: [Networker] Stage savesets from AFTD to tape
From: Preston de Guise <enterprise.backup AT GMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 12 Nov 2009 07:48:36 +1100
Hi Tom,

On 12/11/2009, at 07:20 , Tom Birkenbach wrote:

> In an effort to stage savesets from AFTDs to tape, I'm using the following
> procedure.
> 
> #mminfo -ot -q 'location=storagenode1,copies=2' -r ssid > stagelist.txt
> #nsrstage -v -m -d -b LTO3Pool -S -f ./stagelist.txt
> 
> I believe my only real "gotcha" is if I forget to set the location on the
> AFTD.  Ultimately, what I'm trying to do is stage all the savesets from the
> AFTD to tape to clear the disk (for maintenance purposes, disk resizing,
> whatever...).  My method feels a bit "hackey" and, with the multitude of
> Networker commands, it seems like there could be a better way.  Any ideas or
> suggestions?

The absolute number one suggestion I have for you is DON'T specify just the 
saveset id.

(Sorry for the caps but it's that important.)

If you're cloning out to tape first, then subsequently stage, then staging 
specifying just the saveset ID will have unintended consequences.

If you stage by saveset ID alone, NetWorker will delete _all_ details of _all_ 
instances of the saveset except the instance you just staged out. I.e., you 
lose reference to your clones as well.

Always run mminfo for staging operations as:

mminfo <rest> -r ssid,cloneid -xc\/ | grep -v ssid

That way, mminfo will construct the results including saveset ID and clone ID.

Also, because of that, you'd want to change your query field from 'location=X' 
to say:

volume=Y.RO

where Y.RO is the read-only volume you want to stage from; run once per disk 
backup unit.

I realise with you using a query of "copies=2" that you're probably not cloning 
--- however, honestly, staging by just saveset ID alone is something you want 
to avoid getting in the habit of; it's just too dangerous.

Cheers,

Preston.

--
Preston de Guise


"Enterprise Systems Backup and Recovery: A Corporate Insurance Policy":

http://www.amazon.com/Enterprise-Systems-Backup-Recovery-Corporate/dp/1420076396

http://www.enterprisesystemsbackup.com

NetWorker blog: http://nsrd.wordpress.com


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