X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 53D8A9DCCDA for ; Sun, 25 Dec 2005 00:20:01 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 09692-04-7 for ; Sun, 25 Dec 2005 00:19:55 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from hosting.commandprompt.com (128.commandprompt.com [207.173.200.128]) by postgresql.org (Postfix) with ESMTP id 10DC29DCD68 for ; Sun, 25 Dec 2005 00:19:19 -0400 (AST) Received: from [192.168.1.100] (or-67-76-146-141.sta.sprint-hsd.net [67.76.146.141]) (authenticated bits=0) by hosting.commandprompt.com (8.13.4/8.13.4) with ESMTP id jBP4BCWJ004753; Sat, 24 Dec 2005 20:11:18 -0800 Message-ID: <43AE1DAF.5070207@commandprompt.com> Date: Sat, 24 Dec 2005 20:18:55 -0800 From: "Joshua D. Drake" User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Luke Lonergan CC: David Lang , Frank Wiles , Juan Casero , pgsql-performance@postgresql.org Subject: Re: What's the best hardver for PostgreSQL 8.1? References: <3E37B936B592014B978C4415F90D662D01F1B59F@MI8NYCMAIL06.Mi8.com> <3E37B936B592014B978C4415F90D662D01F47552@MI8NYCMAIL06.Mi8.com> In-Reply-To: <3E37B936B592014B978C4415F90D662D01F47552@MI8NYCMAIL06.Mi8.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Greylist: Sender succeded SMTP AUTH authentication, not delayed by milter-greylist-1.6 (hosting.commandprompt.com [192.168.1.101]); Sat, 24 Dec 2005 20:11:19 -0800 (PST) X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.038 required=5 tests=[AWL=0.038] X-Spam-Score: 0.038 X-Spam-Level: X-Archive-Number: 200512/607 X-Sequence-Number: 16428 Luke Lonergan wrote: >David, > > > >>now hot-swap may not be supported on all interface types, that may be what >>you have run into, but with SCSI or SATA you should be able to hot-swap >>with the right controller. >> >> > >That's actually the problem - Linux hot swap is virtually non-functional for SCSI. You can write into the proper places in /proc, then remove and rescan to get a new drive up, but I've found that the resulting OS state is flaky. This is true of the latest 2.6 kernels and LSI and Adaptec SCSI controllers. > >The problems I've seen are with Linux, not the controllers. > > Interesting, I have had zero problems with Linux and SATA with LSI controllers and hot plug. I wonder what the difference is. The LSI controller even though SATA just uses the scsi driver. Joshua D. Drake >- Luke > > > >---------------------------(end of broadcast)--------------------------- >TIP 2: Don't 'kill -9' the postmaster > > -- The PostgreSQL Company - Command Prompt, Inc. 1.503.667.4564 PostgreSQL Replication, Consulting, Custom Development, 24x7 support Managed Services, Shared and Dedicated Hosting Co-Authors: PLphp, PLperl - http://www.commandprompt.com/