From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <5139923321f1b64b0bef6e817925e70c@collyer.net> To: 9fans@cse.psu.edu Subject: Re: Re: [9fans] Any one going to change to sata disks? Date: Thu, 29 Jun 2006 14:54:28 -0700 From: geoff@collyer.net In-Reply-To: <14ec7b180606291403n66dbbc02y242600363e47c5dc@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-pzbikdblpgpwpxilmzqkvhtgfj" Topicbox-Message-UUID: 709f1740-ead1-11e9-9d60-3106f5b1d025 This is a multi-part message in MIME format. --upas-pzbikdblpgpwpxilmzqkvhtgfj Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Andrey, are you using a Marvell controller, or one that looks to software like an IDE/(P)ATA controller (e.g., Silicon Image)? --upas-pzbikdblpgpwpxilmzqkvhtgfj Content-Type: message/rfc822 Content-Disposition: inline Received: from collyer.net ([216.240.55.178]) by collyer.net; Thu Jun 29 14:04:13 PDT 2006 Received: from mail.cse.psu.edu ([130.203.4.6]) by collyer.net; Thu Jun 29 14:04:12 PDT 2006 Received: from psuvax1.cse.psu.edu (localhost [127.0.0.1]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 82F385B0AE for ; Thu, 29 Jun 2006 17:04:01 -0400 (EDT) X-Original-To: 9fans@cse.psu.edu Delivered-To: 9fans@cse.psu.edu Received: from localhost (localhost [127.0.0.1]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 0E1DB5AA0E for <9fans@cse.psu.edu>; Thu, 29 Jun 2006 17:03:44 -0400 (EDT) Received: from mail.cse.psu.edu ([127.0.0.1]) by localhost (psuvax1 [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 20651-01-87 for <9fans@cse.psu.edu>; Thu, 29 Jun 2006 17:03:41 -0400 (EDT) Received: from wr-out-0506.google.com (wr-out-0506.google.com [64.233.184.234]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 3C7FFC7FFD for <9fans@cse.psu.edu>; Thu, 29 Jun 2006 17:03:37 -0400 (EDT) Received: by wr-out-0506.google.com with SMTP id i12so206936wra for <9fans@cse.psu.edu>; Thu, 29 Jun 2006 14:03:37 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=JKtNhYLQFo248ernu/ug4A3kwpLXbmlGZdT0ocCQ4JRToYMbHF4UQ3XkRllAOGp4vMDAkY64yG56C77cbmHm2FcYhvvt1bjoMiLov0hUuNVQh2sv1FGDIzKIJi5qgpL0SaE/RcE5lH4WSAlxfyoEtIHnOv4/rUa7nvTvh819YVQ= Received: by 10.54.128.6 with SMTP id a6mr2407391wrd; Thu, 29 Jun 2006 14:03:36 -0700 (PDT) Received: by 10.54.91.5 with HTTP; Thu, 29 Jun 2006 14:03:36 -0700 (PDT) Message-ID: <14ec7b180606291403n66dbbc02y242600363e47c5dc@mail.gmail.com> Date: Thu, 29 Jun 2006 15:03:36 -0600 From: "andrey mirtchovski" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu> Subject: Re: Re: [9fans] Any one going to change to sata disks? In-Reply-To: <746635ea52d91a5d72ff8cf8b44993b7@plan9.bell-labs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <43033963bac21bb13ae4c93be93157c5@coraid.com> <746635ea52d91a5d72ff8cf8b44993b7@plan9.bell-labs.com> X-Virus-Scanned: by amavisd-new at cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu> List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: 9fans-bounces+geoff.9fans=collyer.net@cse.psu.edu Errors-To: 9fans-bounces+geoff.9fans=collyer.net@cse.psu.edu here's my recent experience with sata: i had two disks i wanted to use, big 250gb chunks of hunk. if one was plugged in by itself it will appear as sdC0, if i plugged in a second one none of the two will be recognized, not even to boot from. one had to keep switching them from one slot to the other and fiddling with the bios just to get them both to be visible to the os. if anything was plugged in to the IDE slots, including just a cdrom, the sata disks (or one disk, rather) would be delegated to sdE0... with two sata disks plugged in as sdC0 and sdD0, the bandwidth to one would be 5 times slower than the bandwidth to the other. same test as jmk's would complete in 2-3 seconds on sdC0, and 11-12 seconds on sdD0... --upas-pzbikdblpgpwpxilmzqkvhtgfj--