From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerhard Schneider Subject: Re: SCSI tape access on 2.6 kernels? Date: Tue, 24 Jan 2006 13:56:06 +0100 Message-ID: <43D623E6.7090507@ilsb.tuwien.ac.at> References: <43D604AD.6050607@ilsb.tuwien.ac.at> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig101E172435E571A56BD21C46" Return-path: Received: from gh-gw1.ilsb.tuwien.ac.at ([128.130.23.14]:52452 "EHLO gh-gw1.ilsb.tuwien.ac.at") by vger.kernel.org with ESMTP id S1030466AbWAXM4P (ORCPT ); Tue, 24 Jan 2006 07:56:15 -0500 Received: from [128.130.71.3] (ilfb02.ilsb.tuwien.ac.at [128.130.71.3]) by gh-gw1.ilsb.tuwien.ac.at (8.13.3/8.13.3/Debian-6) with ESMTP id k0OCuC73032400 for ; Tue, 24 Jan 2006 13:56:12 +0100 In-Reply-To: <43D604AD.6050607@ilsb.tuwien.ac.at> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig101E172435E571A56BD21C46 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Gerhard Schneider wrote: > It's getting me mad.. > > > Another machine w/ > LSI1030 SCSI controller > Megaraid ZCR controller > Overland tape library > HP LTO-3 tape drive > Kernel 2.6.14rc1: > > dd if=linux-2.6.16-rc1.tar.gz of=/dev/nst0 bs=64k > 776+1 records in > 776+1 records out > 50918460 bytes transferred in 45.953133 seconds (1108052 bytes/sec) > After installing an old 53c875 controller on the machine w/ 2.6.14rc1: dd if=linux-2.6.16-rc1.tar.gz of=/dev/nst0 bs=64k 776+1 records in 776+1 records out 50918460 bytes transferred in 27.565659 seconds (1847170 bytes/sec) Perhaps a 53c810 would be the fastest? What am I doing wrong? Gerhard Schneider -- Gerhard Schneider Institute of Lightweight Design and e-Mail:gs@ilsb.tuwien.ac.at Structural Biomechanics (E317) Tel.: +43 1 58801 31716 Vienna University of Technology / Austria Fax: +43 1 58801 31799 A-1040 Wien, Gusshausstrasse 27-29 http://www.ilsb.tuwien.ac.at/~gs/ --------------enig101E172435E571A56BD21C46 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFD1iPqE6e53f4wQG4RAvitAJ4n0DT7yxLhm6QkrhN0cS+a40PUTwCguLsD sGgDqYocJhqoyTK24H3HG50= =0aJp -----END PGP SIGNATURE----- --------------enig101E172435E571A56BD21C46--