Networker

Re: [Networker] mminfo questions

2003-06-06 15:33:27
Subject: Re: [Networker] mminfo questions
From: "Eberhart, Deborah" <DEberhart AT BBANDT DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 6 Jun 2003 15:30:20 -0400
Thanks that helps a alot.  :)

Deborah Eberhart
BB&T Legato Team
(252) 246-2719
deberhart AT BBandT DOT com



-----Original Message-----
From: Stan Sander [mailto:ssande AT sandia DOT gov]
Sent: Friday, June 06, 2003 3:27 PM
To: Eberhart, Deborah
Cc: Legato NetWorker discussion
Subject: Re: [Networker] mminfo questions


Eberhart, Deborah wrote:

>Thank.  But... If there is a clone id doesn't that mean a clone was made?
>If so then how can some of the clone id's say there is only 1 copy.  (If 1
>copy means it is just a copy of the data off the drive.)
>
>Deborah Eberhart
>BB&T Legato Team
>(252) 246-2719
>deberhart AT BBandT DOT com
>
>
No, a clone id does not mean a clone was made.  Every saveset has a
clone id in the media database, even the original.  The combination of
saveset id and clone id is always unique so you can pick which copy of a
backup you want to work with using this combination.  1 copy means just
that there is 1 copy of this data known to Networker (the original
backup) 2 copies means Networker knows about 2 copies the original plus
one clone.  By Networker I mean more specifically the media database.
 If you have savesets for which you believe a clone was made and mminfo
is only reporting one copy, then the media database and therefore the
rest of Networker, does not know about this clone copy.  So, it either
was not copied successfully or somehow the media database has lost track
of it.  This can happen if a volume is relabled or deleted from the
media database.

>
>
>-----Original Message-----
>From: Stan Sander [mailto:ssande AT sandia DOT gov]
>Sent: Friday, June 06, 2003 9:39 AM
>To: Legato NetWorker discussion; Eberhart, Deborah
>Subject: Re: [Networker] mminfo questions
>
>
>Eberhart, Deborah wrote:
>
>
>
>>Hi,
>>
>>I need to get clarification of some options for mminfo.  The options are
>>copies, cloneid.  For the option copies, I believe that a response of 1
>>means no clone was created.  It is just a backup "copy" of the data from
>>
>>
>the
>
>
>>drive.  The response of 2 means there is the original backup and a clone
>>"copy" of the data.  I am guessing that the response of 3 would mean there
>>is the original backup and two clones of  the data.  We are not setup to
>>have two clones per saveset so why would it even try to create two clones
>>instead of just one.  For the option of clone id, how can multiple
>>
>>
>different
>
>
>>savesets have the same clone id?
>>
>>
>>
>>
>>
><snip>
>
>You are correct in your assesment of the clone id and it's meaning.  As
>for why it would try to create more than 1 clone, my experience has show
>that this is an "undocumented feature" in Legato.  I call it an
>undocumented feature since we all know that Legato doesn't contain any
>bugs.   ;-)  As for why multiple different savesets would have the same
>clone id it is because they were completed at the same time.  The clone
>ID bears a striking resemblance to epoch seconds.  Unix folk will know
>what I mean by that but for the rest of the world it is the number of
>seconds elapsed since January 1, 1970 UTC time.
>
>
>


--
Stan Sander - CSU Special Projects
Unix Systems/Server Administrator
(505)284-4915

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