Date: Sun, 20 Jun 2010 19:20:16 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Scott Long" <scottl@samsco.org>, "oizs" <oizs@freemail.hu> Cc: freebsd-current@freebsd.org Subject: Re: Dell Perc 5/i Performance issues Message-ID: <0B4F09B43AE84F24954E3B940FA0ECBB@multiplay.co.uk> References: <4C1AB4C0.4020604@freemail.hu> <A594C946-32C0-4C4A-AA37-0E81D270162A@mac.com> <4C1B3792.9000007@freemail.hu><AANLkTimsHZLREByndqXEjt2yjdvOYVV7Rnw8AMjqxYIl@mail.gmail.com><4C1C0ED9.8090103@freemail.hu> <2F904ED8-BC95-459F-8536-A889ADDA8D31@samsco.org>
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Does anyone know of a nice how to guide for achieving this? ----- Original Message ----- From: "Scott Long" <scottl@samsco.org> 2. Partition alignment. If you're using classic MBR slices, everything gets misaligned by 63 sectors, making it impossible for the controller to optimize both reads and writes. If the array is used for secondary storage, simply don't use an MBR scheme. If it's used for primary storage, try using GPT instead and setting up your partitions so that they are aligned to large power-of-2 boundaries. ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.
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