From owner-freebsd-stable@FreeBSD.ORG Fri Sep 12 08:29:19 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6CD10129; Fri, 12 Sep 2014 08:29:19 +0000 (UTC) Received: from smtp.digiware.nl (unknown [IPv6:2001:4cb8:90:ffff::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id F0915C92; Fri, 12 Sep 2014 08:29:18 +0000 (UTC) Received: from rack1.digiware.nl (unknown [127.0.0.1]) by smtp.digiware.nl (Postfix) with ESMTP id C92C6153A8B; Fri, 12 Sep 2014 10:29:14 +0200 (CEST) X-Virus-Scanned: amavisd-new at digiware.nl Received: from smtp.digiware.nl ([127.0.0.1]) by rack1.digiware.nl (rack1.digiware.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UNSXwcJpcxyM; Fri, 12 Sep 2014 10:29:12 +0200 (CEST) Received: from [192.168.101.102] (vpn.ecoracks.nl [31.223.170.173]) (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.digiware.nl (Postfix) with ESMTPSA id 12D3E153A8A; Fri, 12 Sep 2014 10:29:12 +0200 (CEST) Message-ID: <5412AED7.9040903@digiware.nl> Date: Fri, 12 Sep 2014 10:29:11 +0200 From: Willem Jan Withagen User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Steven Hartland , Peter Wemm , freebsd-stable@freebsd.org Subject: Re: getting to 4K disk blocks in ZFS References: <540FF3C4.6010305@ish.com.au> <54114029.3060507@FreeBSD.org> <2128347.Ah5i0RTCvp@overcee.wemm.org> <541230F1.3060402@digiware.nl> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Andriy Gapon , Aristedes Maniatis X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Sep 2014 08:29:19 -0000 On 12-9-2014 10:17, Steven Hartland wrote: > > ----- Original Message ----- From: "Willem Jan Withagen" > > >> On 11-9-2014 19:49, Peter Wemm wrote: >>>> Another downside is 1/4th of uberblocks, 32 vs 128. >>>> Also, automatic sector size detection works great for me and I've >>>> never had >>>> a need to manually tweak ashift. >>> >>> Unfortunately, I have. Same drive connected two different ways: >>> >>> da12 at mps1 bus 0 scbus1 target 11 lun 0 >>> da12: Fixed Direct Access SCSI-6 device >>> da12: 600.000MB/s transfers >>> da12: Command Queueing enabled >>> da12: 3815447MB (7814037168 512 byte sectors: 255H 63S/T 486401C) >>> >>> ada1 at ahcich1 bus 0 scbus3 target 0 lun 0 >>> ada1: ATA-8 SATA 3.x device >>> ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) >>> ada1: Command Queueing enabled >>> ada1: 3815447MB (7814037168 512 byte sectors: 16H 63S/T 16383C) >>> ada1: quirks=0x1<4K> >>> >>> The 4k flag is missing when it's on the sas controller. The Ident >>> strings are changed. >>> >>> This came up elsewhere recently. >> >> I reported the same fact for the new set of WD REDs I installed. >> Seems that ada and da have different quirks tables... >> So disks on SATA connectors on the motherboard are diagnosed as being >> 4Kb. >> The disks on my twa don't get the quirk and are considered 512b > > LMK the ident strings and I'll look to update the quirks tables. Hi Steven, Well actually IMHO the quirk tables should be "joined". Because it is nowadays very simple to get a sata device on a scsi-device (da??) be it USB, or a controller that make the world look like /dev/da?? Like the twa I have. I guess the other way scis devices turning up under ATA would not be common. That said, it will not be so simple, otherwise somebody(tm) would have done so already? the WD RED under ata: ada4 at ahcich10 bus 0 scbus11 target 0 lun 0 ada4: ATA-9 SATA 3.x device ada4: Serial Number WD-WMC1T4089783 ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada4: Command Queueing enabled ada4: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada4: quirks=0x1<4K> under twa da0 at arcmsr0 bus 0 scbus8 target 0 lun 0 da0: Fixed Direct Access SCSI-5 device da0: Serial Number WD-WMC1T4081674 da0: 250.000MB/s transfers (125.000MHz, offset 32, 16bit) da0: Command Queueing enabled da0: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C) da0: Delete methods: --WjW