X-Recipient:	archive-cygwin AT delorie DOT com
X-Spam-Check-By:	sourceware.org
X-BigFish:	VPS0(zzzzzzz2fh6bh62h)
X-Spam-TCS-SCL:	1:0
From:	Bruce Dobrin <dobrin AT imageworks DOT com>
To:	Cygwin <cygwin AT cygwin DOT com>
Date:	Tue, 25 Nov 2008 15:25:33 -0800
Subject:	Magnetic tape tools
Message-ID:	<5369FDACFFACA04182E47E00D46B71810AA080F4BF@LAX-EXCH03.spimageworks.com>
Accept-Language:	en-US
acceptlanguage:	en-US
MIME-Version:	1.0
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id mAPNQxqh002586

I found a need to read Tar Archives from a LTO 4 tape and only had a Vista Box to do it.  After messing around with SFU, gnu-tar etc I installed Cygwin and As expected,  was able to mt to filemark 117 and begin extraction (/dev/nst0).  Which was better than I could do with any other tool,  the Problem is that it was excruciatingly slow.  It took over an hour to get to filemark 116 and all night to extract 6500 files.  Much slower than on My Linux boxes (  which are not an option in this case). I haven't had to deal with MT in a long time,  is there a way to speed this up?  Could I Might it be faster to dd the whole (TByte) tape and untar later?  Are there any other tools I should concider? I'm hoping someone has had to do this recently and knows the secret

Mt -f /dev/nst0 fsf 116
Tar -xvb 1024 -f /dev/nst0

Thanks for your wisdom
Bruce D.



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -