Amanda-Users

Re: Using only one tape, full dump delayed

2003-03-05 16:00:48
Subject: Re: Using only one tape, full dump delayed
From: "Urs Forster" <forster AT bluemail DOT ch>
To: amanda-users AT amanda DOT org
Date: Wed, 5 Mar 2003 19:36:04 +0100
Ok Guys

You're so smart and kind.
I do hope 'dude' is not too rude (since it's not my native language).

I found it after disassembling the drive (some of you may have a notch at
the bottom of the case, the SUN-Version does not).

BTW it does work fine for days already, and I like it.

Cheers
Urs


>
>On Mon, Mar 03, 2003 at 04:39:05PM +0100, Urs Forster wrote:
>> The '72-144 Gbyte 4mm DDS-3 Autoloader Installation and User's Guide'
says
>> that a DDS-3 125m tape would hold 72GB uncompressed and 144GB compressed.
>
>Dude, that's the capacity of the whole *Library*!
>
>6*12GB = 72GB, 6*24GB = 144GB.
>
>> The tape itselfes says: 12GB native Capacity.
>
>That is correct, for a a DDS-3 tape drive with 125m tape.
>
>> There is no switch inside the drive to enable/disable compression,
>
>Really?  Not like this?
>
>  
> http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg51068
>
>> so I assume
>> when not using the 'c,u' option, it wont compress.
>
>You have some sort of front-panel display that will indicate
>compression during data write, don't you?
>
>> 
>> Then there is the density switch (l,m,h) for low, medium and high. I don't
>> think this has to do with compression. I believe this depends on the made
>> of the tape? (I am not using any)
>
>HP has what seems to be a pretty good Solaris install doc here:
>
>   
> http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg51069
>
>
>-- 
>Jay Lessert                               jay_lessert AT accelerant DOT net
>Accelerant Networks Inc.                       (voice)1.503.439.3461
>Beaverton OR, USA                                (fax)1.503.466.9472


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