From oracle-l-bounce@freelists.org Thu Jul 15 09:59:57 2004 Return-Path: Received: from air189.startdedicated.com (root@localhost) by orafaq.com (8.11.6/8.11.6) with ESMTP id i6FExR917672 for ; Thu, 15 Jul 2004 09:59:37 -0500 X-ClientAddr: 206.53.239.180 Received: from turing.freelists.org (freelists-180.iquest.net [206.53.239.180]) by air189.startdedicated.com (8.11.6/8.11.6) with ESMTP id i6FExH617625 for ; Thu, 15 Jul 2004 09:59:27 -0500 Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id E6B1672C8A4; Thu, 15 Jul 2004 09:39:28 -0500 (EST) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 12098-70; Thu, 15 Jul 2004 09:39:28 -0500 (EST) Received: from turing (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id A3AC672C8A0; Thu, 15 Jul 2004 09:39:27 -0500 (EST) Received: with ECARTIS (v1.0.0; list oracle-l); Thu, 15 Jul 2004 09:37:59 -0500 (EST) X-Original-To: oracle-l@freelists.org Delivered-To: oracle-l@freelists.org Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 32E1772C4C3 for ; Thu, 15 Jul 2004 09:37:59 -0500 (EST) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 11800-79 for ; Thu, 15 Jul 2004 09:37:58 -0500 (EST) Received: from ross.alise.lv (ross.alise.lv [194.19.227.242]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 8190272C4CE for ; Thu, 15 Jul 2004 09:37:58 -0500 (EST) In-Reply-To: <4C9B6FDA0B06FE4DAF5918BBF0AD82CF09660BDB@bosmail00.bos.il.pqe> To: oracle-l@freelists.org Subject: RE: RAC nodes MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.2 June 01, 2004 Message-ID: From: J.Velikanovs@alise.lv Date: Thu, 15 Jul 2004 17:55:15 +0300 X-MIMETrack: Serialize by Router on ROSS/IT ALISE/LV(Release 5.0.11 |July 24, 2002) at 2004.07.15 17:55:17, Serialize complete at 2004.07.15 17:55:17 Content-type: text/plain X-Virus-Scanned: by amavisd-new at freelists.org Content-Transfer-Encoding: 8bit X-archive-position: 5230 X-ecartis-version: Ecartis v1.0.0 Sender: oracle-l-bounce@freelists.org Errors-To: oracle-l-bounce@freelists.org X-original-sender: J.Velikanovs@alise.lv Precedence: normal Reply-To: oracle-l@freelists.org X-list: oracle-l X-Virus-Scanned: by amavisd-new at freelists.org Some time ago, I have tried to measure the interconnect speed in HP Tru64 3 node RAC configuration based on memory cards. I got some thing like 0.5ms for one access. Theoretically if light speed 18600 mlies/sec. then for 100 miles latency going to be ~0.53ms (just to get to destination) + HW overhead. . It can appear that latency in interconnect communication will be 3 times more then in local configuration. . And there theoretically you are going to locate shared storage? ;) . May be some in this list working in distributed configuration. It will be very interesting to hear about such case. Jurijs 9268222 ============================================ http://otn.oracle.com/ocm/jvelikanovs.html "Bobak, Mark" Sent by: oracle-l-bounce@freelists.org 15.07.2004 17:48 Please respond to oracle-l To: cc: Subject: RE: RAC nodes I'd think the would kill you, but I'm far from an expert on the subject, so I'll sit back and listen to what others have to say..... Mark J. Bobak Oracle DBA ProQuest Company Ann Arbor, MI "Post Hoc Ergo Propter Hoc" -----Original Message----- From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of Carol Legros Sent: Thursday, July 15, 2004 11:40 AM To: oracle-l@freelists.org Subject: RAC nodes I'm wondering if anyone out there that is using RAC has set up their nodes such that half of the nodes reside in one geographic location and the=20 other half of their nodes in another geographic location (ie 100 miles away). I can envision possible issues with network latency or outages, but I'm=20 wondering what other problems/issues others may have found if/when they tried such a configuration. Cheers Carol ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@freelists.org put 'unsubscribe' in the subject line. -- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@freelists.org put 'unsubscribe' in the subject line. -- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@freelists.org put 'unsubscribe' in the subject line. -- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------