Return-Path: Received: from ensim.rackshack.net (root@localhost) by orafaq.net (8.11.6/8.11.6) with ESMTP id h8PKxST27082 for ; Thu, 25 Sep 2003 15:59:28 -0500 X-ClientAddr: 66.27.56.212 Received: from www3.fatcity.com (rrcs-west-66-27-56-212.biz.rr.com [66.27.56.212]) by ensim.rackshack.net (8.11.6/8.11.6) with ESMTP id h8PKxNc27075 for ; Thu, 25 Sep 2003 15:59:23 -0500 Received: (from root@localhost) by www3.fatcity.com (8.11.6/8.11.6) id h8PIKav24889 for oracle-l@orafaq.net; Thu, 25 Sep 2003 11:20:36 -0700 Received: by fatcity.com (05-Jun-2003/v1.0g-b73/bab) via fatcity.com id 005D111B; Thu, 25 Sep 2003 11:19:44 -0800 Message-ID: Date: Thu, 25 Sep 2003 11:19:44 -0800 To: Multiple recipients of list ORACLE-L X-Comment: Oracle RDBMS Community Forum X-Sender: "Thomas Day" Sender: ml-errors@fatcity.com Reply-To: ORACLE-L@fatcity.com Errors-To: ML-ERRORS@fatcity.com From: "Thomas Day" Subject: RE: BAARF Organization: Fat City Network Services, San Diego, California X-ListServer: v1.0g, build 73; ListGuru (c) 1996-2003 Bruce A. Bergman Precedence: bulk Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit And what do you suggest? "Matthew Zito" @gridapp.com> cc: Sent by: Subject: RE: BAARF ml-errors 09/25/2003 02:29 PM Please respond to ORACLE-L I would strongly advise against redo logs on RAID-0 with oracle duplexing. Different operating systems respond more or less gracefully to the vanishing of a storage device (which is the normal behavior of a failed disk on a RAID-0 set on a HW array). There's too many variables possible to list out the scenarios, but I would definitely definitely test failing a RAID-0 set under load before I would go live with redo logs on raid-0. Thanks, Matt -- Matthew Zito GridApp Systems Email: mzito@gridapp.com Cell: 646-220-3551 Phone: 212-358-8211 x 359 http://www.gridapp.com > -----Original Message----- > From: ml-errors@fatcity.com [mailto:ml-errors@fatcity.com] On > Behalf Of Thomas Day > Sent: Thursday, September 25, 2003 2:05 PM > To: Multiple recipients of list ORACLE-L > Subject: BAARF > > > > I would love to have a definitive site that I could send all > RAID-F advocates to where it would be laid out clearly, > unambiguously, and definitively what storage types should be > used for what purpose. > > Redo logs on RAID 0 with Oracle duplexing (y/n)? > Rollback (or undo) ditto? > Write intensive tablespaces on RAID 1+0 (or should that be > 0+1)? Read intensive tablespaces on RAID ? (I guess 5 is OK > since it's cheaper than 1+0 and you won't have the write penalty) > > While we're at it could we blow up the OFA myth? Since > you're tablespaces are on datafiles that are on logical > volumns that are on physical devices which may contain one or > many actual disks, does it really make sense to worry (from a > performance standpoint) about separating tables and indexes > into different tablespaces? > > We have killed the "everything in one extent" myth haven't > we? Everybody's comfortable with tables that have 100's of extents? > > And while we're at it, could we include the Oracle 9 multiple > blocksizes and how to use them. The best that I've seen is > indexes in big blocks, tables in small blocks --- uh, oh, > time to separate tables and indexes. > > Maybe we will never get rid of the OFA myth. > > Just venting. > > Tired of arguing in front of management with Oracle certified > DBAs that RAID 5 is not good, OFA is unnecessary, and uniform > extents is the only way to go. Looking for a big stick to > catch their attention with. > > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Thomas Day > INET: tday6@csc.com > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') > and in the message BODY, include a line containing: UNSUB > ORACLE-L (or the name of mailing list you want to be removed > from). You may also send the HELP command for other > information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Matthew Zito INET: mzito@gridapp.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Thomas Day INET: tday6@csc.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).