Date: Fri, 13 Sep 2013 14:16:24 +0300 From: Dmitryy Makarov <supportme@ukr.net> To: freebsd-current@freebsd.org Subject: ZFS secondarycache on SSD problem on r255173 Message-ID: <1379069539.824504225.3b9xwugp@fmst-6.ukr.net>
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Hello, FreeBSD Current. Have some trouble with adding SSD drive as secondarycache device on 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r255173 : SSD INTEL SSDSC2BW180A4 dmesg: ada1 at ahcich2 bus 0 scbus4 target 0 lun 0 ada1: <INTEL SSDSC2BW180A4 DC02> ATA-9 SATA 3.x device ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 171705MB (351651888 512 byte sectors: 16H 63S/T 16383C) ada1: quirks=0x1<4K> ada1: Previously was known as ad8 # diskinfo -v /dev/ada1 /dev/ada1 512 # sectorsize 180045766656 # mediasize in bytes (167G) 351651888 # mediasize in sectors 4096 # stripesize 0 # stripeoffset 348861 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. BTDA326504N51802GN # Disk ident. Creating partition and adding: # gpart create -s gpt ada1 # gpart add -t freebsd-zfs -s3G -l zil0 ada1 # gpart add -t freebsd-zfs -l cache0 ada1 # zpool add disk1 log /dev/gpt/zil0 # zpool add disk1 cache /dev/gpt/cache0 After that have: log gpt/zil0 ONLINE 0 0 0 cache gpt/cache0 ONLINE 0 0 0 block size: 512B configured, 4096B native But why? ZFS can't properly set sector size for cache device (quirks=0x1<4K>)? And have some strange behavior with ZIl partition on the same SSD - everything works! Okay, was trying to do some workaround with GNOP: # gnop create -S4096 /dev/gpt/cache0 # zpool add disk1 cache /dev/gpt/cache0.nop Seems to be OK cache gpt/cache0.nop ONLINE 0 0 0 But after reboot pool has status:One or more devices are configured to use a non-native block size. Expect reduced performance. cache gptid/39e40c33-1c4d-11e3-ac20-002590aa9548 ONLINE 0 0 0 block size: 512B configured, 4096B native And no gnop parts was found, and even gpart (in /dev/gpart) # gnop status # gnop: Command 'status' not available. # gpart show -l ada1 => 34 351651821 ada1 GPT (167G) 34 6 - free - (3.0k) 40 6291456 1 zil0 (3.0G) 6291496 345360352 2 cache0 (164G) 351651848 7 - free - (3.5k) # ls /dev/gpt/cache* zsh: no matches found: /dev/gpt/cache* Please, help to deal with this problem. Or what else information can be useful to find out this trouble. From owner-freebsd-current@FreeBSD.ORG Fri Sep 13 12:18:13 2013 Return-Path: <owner-freebsd-current@FreeBSD.ORG> Delivered-To: freebsd-current@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 ESMTP id F102249A; Fri, 13 Sep 2013 12:18:12 +0000 (UTC) (envelope-from prvs=1968c3207d=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 6DEE32E3B; Fri, 13 Sep 2013 12:18:12 +0000 (UTC) Received: from r2d2 ([82.69.141.170]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50005951420.msg; Fri, 13 Sep 2013 13:18:04 +0100 X-Spam-Processed: mail1.multiplay.co.uk, Fri, 13 Sep 2013 13:18:04 +0100 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.141.170 X-Return-Path: prvs=1968c3207d=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk Message-ID: <EAD621124C1549208BD93D20657E1BD0@multiplay.co.uk> From: "Steven Hartland" <killing@multiplay.co.uk> To: "Dmitryy Makarov" <supportme@ukr.net>, <freebsd-current@freebsd.org>, "Justin T. Gibbs" <gibbs@FreeBSD.org> References: <1379069539.824504225.3b9xwugp@fmst-6.ukr.net> Subject: Re: ZFS secondarycache on SSD problem on r255173 Date: Fri, 13 Sep 2013 13:18:24 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="utf-8"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>; List-Post: <mailto:freebsd-current@freebsd.org> List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=subscribe> X-List-Received-Date: Fri, 13 Sep 2013 12:18:13 -0000 This is a recent bit of code by Justin cc'ed, so he's likely the best person to investigate this one. Regards Steve ----- Original Message ----- From: "Dmitryy Makarov" <supportme@ukr.net> To: <freebsd-current@freebsd.org> Sent: Friday, September 13, 2013 12:16 PM Subject: ZFS secondarycache on SSD problem on r255173 > Hello, FreeBSD Current. > > Have some trouble with adding SSD drive as secondarycache device on 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r255173 : > SSD INTEL SSDSC2BW180A4 > > dmesg: > ada1 at ahcich2 bus 0 scbus4 target 0 lun 0 > ada1: <INTEL SSDSC2BW180A4 DC02> ATA-9 SATA 3.x device > ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) > ada1: Command Queueing enabled > ada1: 171705MB (351651888 512 byte sectors: 16H 63S/T 16383C) > ada1: quirks=0x1<4K> > ada1: Previously was known as ad8 > > > # diskinfo -v /dev/ada1 > /dev/ada1 > 512 # sectorsize > 180045766656 # mediasize in bytes (167G) > 351651888 # mediasize in sectors > 4096 # stripesize > 0 # stripeoffset > 348861 # Cylinders according to firmware. > 16 # Heads according to firmware. > 63 # Sectors according to firmware. > BTDA326504N51802GN # Disk ident. > > Creating partition and adding: > # gpart create -s gpt ada1 > # gpart add -t freebsd-zfs -s3G -l zil0 ada1 > # gpart add -t freebsd-zfs -l cache0 ada1 > # zpool add disk1 log /dev/gpt/zil0 > # zpool add disk1 cache /dev/gpt/cache0 > > After that have: > log > > gpt/zil0 ONLINE 0 0 0 > cache > gpt/cache0 ONLINE 0 0 0 block size: 512B configured, 4096B native > > But why? ZFS can't properly set sector size for cache device (quirks=0x1<4K>)? > And have some strange behavior with ZIl partition on the same SSD - everything works! > > > Okay, was trying to do some workaround with GNOP: > # gnop create -S4096 /dev/gpt/cache0 > # zpool add disk1 cache /dev/gpt/cache0.nop > > Seems to be OK > cache > gpt/cache0.nop ONLINE 0 0 0 > > But after reboot pool has > status:One or more devices are configured to use a non-native block size. > Expect reduced performance. > > cache > gptid/39e40c33-1c4d-11e3-ac20-002590aa9548 ONLINE 0 0 0 block size: 512B configured, 4096B native > > And no gnop parts was found, and even gpart (in /dev/gpart) > > # gnop status > # gnop: Command 'status' not available. > > # gpart show -l ada1 > => 34 351651821 ada1 GPT (167G) > 34 6 - free - (3.0k) > 40 6291456 1 zil0 (3.0G) > 6291496 345360352 2 cache0 (164G) > 351651848 7 - free - (3.5k) > > # ls /dev/gpt/cache* > zsh: no matches found: /dev/gpt/cache* > > > Please, help to deal with this problem. > Or what else information can be useful to find out this trouble. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. 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