Amanda-Users

Re: big filemark

2004-02-13 09:52:16
Subject: Re: big filemark
From: Jean-Louis Martineau <martinea AT iro.umontreal DOT ca>
To: amanda-users AT amanda DOT org
Date: Fri, 13 Feb 2004 09:47:34 -0500
On Thu, Feb 12, 2004 at 12:14:45PM -0500, Jon LaBadie wrote:
> When people have expressed terrible concern for
> large filemarks in their measured tapetypes
> I have often said basically "don't worry".
> 
> Well I think we have a new champion filemark.
> 
> Just posted to the Faq-O-Matic list was:
> 
>   define tapetye IBM_ULTRIUM-TD2 {
>       comment "just produced by tapetype program"
>       length 205572 mbytes
>       filemark 534180 kbytes
>       speed 18522 kps
>   }
> 
> 
> Note, that is 534 MEGABYTES, 1/2 a GIGABYTE.
> 
> 
> But again I say, "don't worry"!
> It is only 1/4 of one percent (0.25%)
> of the total tape length of 200GB.
> 
> If that measured tapetype and filemark are accurate,
> it will have very little impact on amanda's calculations.

But if you have 200 DLE, amanda will think that the 200 filemarks
will use 100GB (1/2 of your tape). You should worry about that.

Jean-Louis

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