From owner-freebsd-hackers Mon Aug 31 21:16:36 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA12447 for freebsd-hackers-outgoing; Mon, 31 Aug 1998 21:16:36 -0700 (PDT) (envelope-from owner-freebsd-hackers@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 VAA12438 for ; Mon, 31 Aug 1998 21:16:33 -0700 (PDT) (envelope-from dkelly@n4hhe.ampr.org) Received: from nospam.hiwaay.net (tnt1-58.HiWAAY.net [208.147.147.58]) by mail.HiWAAY.net (8.9.0/8.9.0) with ESMTP id XAA11449 for ; Mon, 31 Aug 1998 23:15:33 -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 TAA04928 for ; Mon, 31 Aug 1998 19:07:37 -0500 (CDT) (envelope-from dkelly@n4hhe.ampr.org) Message-Id: <199809010007.TAA04928@nospam.hiwaay.net> X-Mailer: exmh version 2.0.2 2/24/98 To: hackers@FreeBSD.ORG From: David Kelly Subject: Re: 64k physio limit In-reply-to: Message from Warner Losh of "Mon, 31 Aug 1998 00:23:26 MDT." <199808310623.AAA01070@harmony.village.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 31 Aug 1998 19:07:37 -0500 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Warner Losh writes: > Is there any way to get a larger I/O to happen than 64k? I have a tape > drive that would be happiest if I could do 256kish writes to it at a time, > rather than only 64k. I'd like to see this also too. People keep handing me 4mm DDS tapes from SGI systems written in 256k blocks. Even 8mm defaults to 128k on SGI. Then there is another user who thinks writting 1024k (megabyte) blocksize is fun. Well there's little hope for that last guy, but support for 256k tape blocks would let me place FreeBSD machines where none are currently. -- 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-hackers" in the body of the message