Networker

Re: [Networker] Verifying data written

2006-11-02 11:12:39
Subject: Re: [Networker] Verifying data written
From: Dag Nygren <dag AT NEWTECH DOT FI>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 2 Nov 2006 17:59:09 +0200
On Thursday 02 November 2006 17:55, Howard Martin wrote:
> On Wed, 1 Nov 2006 15:57:14 +0200, Dag Nygren <dag AT NEWTECH DOT FI> wrote:
> >>> I believe that drives with a tape mounted but not being written to when
> >
> >a
> >
> >>> bus reset occurs will show an error with scanner along the lines of
> >>> expected file number X got file number X+N.
> >
> >And here the reset will have no effect other than perhaps generating an
>
> error
>
> >message about an unexpected filenumber in the log. The data will still be
> >intact.
> >
> >The dangers of top-posting....
> >
> >Best
> >Dag
>
> But the reset will rewind the tape and networker will not know it, I
> thought that although it might check the media label it still assumes it
> was where it last wrote to the tape and would therefore overwrite the
> previous backups. This is the behaviour I believe I have seen with
> networker 6.1.4.

It will (is supposed to) check before it starts writing again. Actually it 
will check the "mini" label of the tape by rewinding it two file marks, but 
at the same time the filenumber will be checked.

Best
Dag

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