Amanda-Users

Re: What does your DLT IIIXT and DLT4 tapetype look like

2005-09-06 09:04:52
Subject: Re: What does your DLT IIIXT and DLT4 tapetype look like
From: Alexander Jolk <alexj AT buf DOT com>
To: Guy Dallaire <clepeterd AT gmail DOT com>
Date: Tue, 06 Sep 2005 14:56:33 +0200
Guy Dallaire wrote:
Is 8kb enough for the filemark ? My last amdump reported en error
writing filemark (But it ran fine for the past 2 months)

There's a misunderstanding. The filemark length is just calculated by amtapetype in order to estimate how much space your drive uses for writing a filemark. It can fluctuate wildly between 0 (for instance, drive technology which writes filemarks in an out-of-band track) and a few megabytes.

The error message that you got cited `writing filemark', but that's just amanda's way to tell you that writing hit EOT. The problem is not in the filemark itself.

If I change the filemark length, will I be able to read my previous
tapes with amrestore/amrecover ?

Yes, definitely. amanda uses the filemark length only to estimate the remaining space; and given that it amounts to a minuscules proportion of the total tape length, whatever you put in there doesn't have any real influence on amanda's operation.

Alex


--
Alexander Jolk  * BUF Compagnie * alexj AT buf DOT com
Tel +33-1 42 68 18 28  *  Fax +33-1 42 68 18 29

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