Received: from maia.hub.org (unknown [200.46.208.211]) by mail.postgresql.org (Postfix) with ESMTP id DD0496339CE for ; Wed, 31 Mar 2010 09:43:31 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.208.211]) (amavisd-maia, port 10024) with ESMTP id 16585-10 for ; Wed, 31 Mar 2010 12:43:13 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.beccati.com (ispeed-srv6.housing.tomato.it [213.92.90.60]) by mail.postgresql.org (Postfix) with ESMTP id DED2763378D for ; Wed, 31 Mar 2010 09:43:20 -0300 (ADT) Received: (qmail 75879 invoked from network); 31 Mar 2010 14:43:18 +0200 Received: from unknown (HELO ?192.168.1.202?) (matteo@beccati.com@88.149.176.119) by mail.beccati.com with SMTP; 31 Mar 2010 12:43:18 -0000 Message-ID: <4BB34366.2050606@beccati.com> Date: Wed, 31 Mar 2010 14:43:18 +0200 From: Matteo Beccati User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; it; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: Greg Smith CC: Ireneusz Pluta , pgsql-performance@postgresql.org Subject: Re: 3ware vs. MegaRAID References: <4BB1FAAF.7050406@wp.pl> <4BB23254.2040109@2ndquadrant.com> In-Reply-To: <4BB23254.2040109@2ndquadrant.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-0.79 tagged_above=-10 required=5 tests=AWL=-0.791, BAYES_50=0.001 X-Spam-Level: X-Archive-Number: 201003/406 X-Sequence-Number: 38231 On 30/03/2010 19:18, Greg Smith wrote: > The MegaRAID SAS 84* cards have worked extremely well for me in terms of > performance and features for all the systems I've seen them installed > in. I'd consider it a modest upgrade from that 3ware card, speed wise. > The main issue with the MegaRAID cards is that you will have to write a > lot of your own custom scripts to monitor for failures using their > painful MegaCLI utility, and under FreeBSD that also requires using > their Linux utility via emulation: > http://www.freebsdsoftware.org/sysutils/linux-megacli.html Getting MegaCLI to work was a slight PITA, but once it was running it's been just a matter of adding: daily_status_mfi_raid_enable="YES" to /etc/periodic.conf to get the following data in the daily reports: Adpater: 0 ------------------------------------------------------------------------ Physical Drive Information: ENC SLO DEV SEQ MEC OEC PFC LPF STATE 1 0 0 2 0 0 0 0 Online 1 1 1 2 0 0 0 0 Online 1 2 2 2 0 0 0 0 Online 1 3 3 2 0 0 0 0 Online 1 4 4 2 0 0 0 0 Online 1 5 5 2 0 0 0 0 Online 1 255 248 0 0 0 0 0 Unconfigured(good) Virtual Drive Information: VD DRV RLP RLS RLQ STS SIZE STATE NAME 0 2 1 0 0 64kB 69472MB Optimal 1 2 1 3 0 64kB 138944MB Optimal BBU Information: TYPE TEMP OK RSOC ASOC RC CC ME iTBBU 29 C -1 94 93 816 109 2 Controller Logs: +++ /var/log/mfi_raid_0.today Sun Mar 28 03:07:36 2010 @@ -37797,3 +37797,25 @@ Event Description: Patrol Read complete Event Data: None + +======================================================================== +seqNum: 0x000036f6 +Time: Sat Mar 27 03:00:00 2010 + +Code: 0x00000027 +Class: 0 +Locale: 0x20 +Event Description: Patrol Read started +Event Data: + None etc... Cheers -- Matteo Beccati Development & Consulting - http://www.beccati.com/