Networker

Re: [Networker] Can you recover indexes from clones?

2004-11-04 17:13:31
Subject: Re: [Networker] Can you recover indexes from clones?
From: George Sinclair <George.Sinclair AT NOAA DOT GOV>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Thu, 4 Nov 2004 17:15:39 -0500
Well, in our case, most clients have a 2 month browse policy and a 1
year retention policy. We only relabel tapes that are at least 1 year
old, so in that case, the file indexes would have long since been
removed anyway. I think maybe only once have I ever prematurely (say
within a month after creating the volume) deleted a volume while keeping
its index entries. But, it does seem logical that as long as you have a
volume (clone or non-clone) that contains the index in question then
nsrck -L7 should work. I certainly hope so!

George


Darren Dunham wrote:
>
> >
> > The post regarding "Volume Clone Question" raises an interesting
> > question to me. It was pointed out that when you clone savesets, they
> > don't have separate entries in the database, so if you remove either the
> > original volume or the clone, the index entries are gone.
>
> I think that's only true in certain situations (such as marking a volume
> recyclable).  There are ways that the original can be removed without
> deleting the file indexes for its component savesets.
>
> > Okay. Now,
> > lets suppose in the process of cloning some savesets, you also clone the
> > indexes, and now your clone volume has both.
>
> Rather than saying you "clone the indexes" I'd say you clone an index
> saveset.  They're separate.  The indexes are on disk.  The index saveset
> is just an old copy.
>
> > If you remove the original,
> > and the index entries are now gone, can you simply run: 'nsrck -t "date"
> > -L7 clientname' to recover the indexes from the clone volume?
>
> I think it should.  Both the original and clone of the index saveset
> have the same SSID, so a load/merge should easily happen from either
> copy.  I've never tried that though.  It shouldn't be too hard to test.
>
> --
> Darren Dunham                                           ddunham AT taos DOT 
> com
> Senior Technical Consultant         TAOS            http://www.taos.com/
> Got some Dr Pepper?                           San Francisco, CA bay area
>          < This line left intentionally blank to confuse you. >
>
> --
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