From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 8 Nov 2001 12:29:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 8 Nov 2001 12:29:45 -0500 Received: from abasin.nj.nec.com ([138.15.150.16]:25351 "HELO abasin.nj.nec.com") by vger.kernel.org with SMTP id ; Thu, 8 Nov 2001 12:29:34 -0500 From: Sven Heinicke MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15338.49399.235530.229030@abasin.nj.nec.com> Date: Thu, 8 Nov 2001 12:29:27 -0500 (EST) To: linux-kernel@vger.kernel.org Subject: Configure.help entry for CONFIG_MD_MULTIPATH X-Mailer: VM 6.72 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I just spent a bit of time trying to figure out what Multipath I/O support was because there was no Configure.help entry. Here is a slightly modified description of it from Ingo Molnar first post of the code. It would of saved me time if it was there. $ diff -u Configure.copy.help Configure.help --- Configure.copy.help Thu Nov 8 10:36:57 2001 +++ Configure.help Thu Nov 8 12:17:36 2001 @@ -1795,6 +1795,16 @@ If unsure, say Y. +Multipath I/O support +CONFIG_MD_MULTIPATH + Multipath-IO is the ability of certain devices to address the same + physical disk over multiple 'IO paths'. The code ensures that such + paths can be defined and handled at runtime, and ensures that a + transparent failover to the backup path(s) happens if a IO errors + arrives on the primary path. + + If unsure, say N. + # AC tree only Support for IDE Raid controllers CONFIG_BLK_DEV_ATARAID