Date: Tue, 14 Dec 1999 16:02:19 -0500 From: Mitch Collinsworth <mkc@Graphics.Cornell.EDU> To: Adon <ahwang@fas.harvard.edu> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: DDS-4 set density woes Message-ID: <199912142102.QAA31206@benge.graphics.cornell.edu> In-Reply-To: Message from Adon <ahwang@fas.harvard.edu> of "Tue, 14 Dec 1999 15:36:40 EST." <Pine.OSF.4.10.9912141531400.5936-100000@is04.fas.harvard.edu>
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>i have a HP SureStore DAT40i (HP C5683A C908). it is a DDS-4 drive that >purports to write to smaller formats such as DDS-2 or DDS-3. my problem >is when i try to write to a DDS-2 tape. in its default configuration, i >cannot write the full capacity of the tape (4 GB uncompressed). with >hardware compression turned on, i get about 3.6 GB on a tape. Is the data you're writing already compressed before it goes to the tape? Hardware compressing a file that is already software compressed will actually end up making it bigger rather than smaller. From your numbers above it sounds like this might be what's happening here. -Mitch To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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