From owner-freebsd-scsi Fri Jul 3 13:16:58 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA13460 for freebsd-scsi-outgoing; Fri, 3 Jul 1998 13:16:58 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from mail.HiWAAY.net (fly.HiWAAY.net [208.147.154.56]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA13455 for ; Fri, 3 Jul 1998 13:16:57 -0700 (PDT) (envelope-from dkelly@n4hhe.ampr.org) Received: from nospam.hiwaay.net (tnt3-233.HiWAAY.net [208.147.146.233]) by mail.HiWAAY.net (8.9.0/8.9.0) with ESMTP id PAA06760; Fri, 3 Jul 1998 15:16:53 -0500 (CDT) Received: from n4hhe.ampr.org (localhost.ampr.org [127.0.0.1]) by nospam.hiwaay.net (8.8.8/8.8.8) with ESMTP id PAA21647; Fri, 3 Jul 1998 15:16:50 -0500 (CDT) (envelope-from dkelly@n4hhe.ampr.org) Message-Id: <199807032016.PAA21647@nospam.hiwaay.net> X-Mailer: exmh version 2.0.2 2/24/98 To: Harlan Stenn cc: dc-sage@dc-sage.org, scsi@FreeBSD.ORG, amanda-users@cs.umd.edu From: David Kelly Subject: Re: DDS/2 tape specs In-reply-to: Message from Harlan Stenn of "Fri, 03 Jul 1998 01:27:35 EDT." <596.899443655@brown.pfcs.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 03 Jul 1998 15:16:50 -0500 Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Harlan Stenn writes: > My second test took 8191 `y' characters followed by a newline: > > % yes `cat 8ky` | dd bs=8k of=/dev/rst0 > > and I eventually killed after over 24 hours' elapsed time. > When I killed it, I think it claimed to have written nearly 10G to the tape. 24 hrs for only 10G doesn't sound good. To a similar DDS-2 (with compression) drive I once used dd to copy /dev/null until something broke. Got 88G on a DDS-1 90m tape. Took about 8 hours. SGI Indy R5000, Irix 6.2, OEM SGI/Seagate/Archive DDS-2 tape drive. -- David Kelly N4HHE, dkelly@nospam.hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message