From owner-freebsd-questions@FreeBSD.ORG Sun Jul 13 19:19:18 2003 Return-Path: <owner-freebsd-questions@FreeBSD.ORG> Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C8E3E37B401 for <freebsd-questions@freebsd.org>; Sun, 13 Jul 2003 19:19:18 -0700 (PDT) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2DAED43F3F for <freebsd-questions@freebsd.org>; Sun, 13 Jul 2003 19:19:17 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 1CB2E526C9; Mon, 14 Jul 2003 11:49:15 +0930 (CST) Date: Mon, 14 Jul 2003 11:49:14 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Marc Wiz <marc@wiz.com> Message-ID: <20030714021914.GR94666@wantadilla.lemis.com> References: <200307130245.h6D2j8HB000556@soth.ventu> <20030713191453.GF23909@dan.emsphone.com> <20030714003258.GP94666@wantadilla.lemis.com> <20030714015746.GE50589@freshaire.wiz.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="phbq2bkSb+hZnunM" Content-Disposition: inline In-Reply-To: <20030714015746.GE50589@freshaire.wiz.com> User-Agent: Mutt/1.4i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 cc: Dan Nelson <dnelson@allantgroup.com> cc: freebsd-questions@freebsd.org Subject: Re: vinum and hot-swapping X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions <freebsd-questions.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions> List-Post: <mailto:freebsd-questions@freebsd.org> List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=subscribe> X-List-Received-Date: Mon, 14 Jul 2003 02:19:19 -0000 --phbq2bkSb+hZnunM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sunday, 13 July 2003 at 20:57:46 -0500, Marc Wiz wrote: > On Mon, Jul 14, 2003 at 10:02:58AM +0930, Greg 'groggy' Lehey wrote: >>> I don't believe vinum can optimize full-stripe writes, though, since >>> FreeBSD can only do I/O in 64k max chunks, >> >> 128 kB. > > I thought physio was limited to 64 KB? The man page on dump states > this. Please correct me if I am wrong. Physio is limited to MAXPHYS, which you'll find defined in /usr/include/sys/param.h: #ifndef MAXPHYS #define MAXPHYS (128 * 1024) /* max raw I/O transfer size */ #endif I've taken a look at the dump code (yuk!), and it no longer places any limitation on the block size. I'll fix the man page. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers --phbq2bkSb+hZnunM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (FreeBSD) iD8DBQE/EhMiIubykFB6QiMRAki7AJwJtiYt6+0vlZlYhzF6w6lCegQUOQCfesku HFccKD+lbO+5v7q1Oa6WL2g= =TXdJ -----END PGP SIGNATURE----- --phbq2bkSb+hZnunM--