From owner-freebsd-fs@FreeBSD.ORG Sat Dec 20 14:32:40 2014 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 84CA0502 for ; Sat, 20 Dec 2014 14:32:40 +0000 (UTC) Received: from mail-wi0-x22a.google.com (mail-wi0-x22a.google.com [IPv6:2a00:1450:400c:c05::22a]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 09CA62CB7 for ; Sat, 20 Dec 2014 14:32:40 +0000 (UTC) Received: by mail-wi0-f170.google.com with SMTP id bs8so7103941wib.1 for ; Sat, 20 Dec 2014 06:32:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=IvWIhAf3Gw+1MFe9c2VBxys9xpOOWWtuwoWKXx0Elf4=; b=o4ZHDjT3PWOqC+p87kQfFQMVpDrByTCOV6nU7SByOyMSMf4DC+071FE2RU97J7+OCE I6YeLSNmNZKGQfPjXuNJZ8GPQ1+1MlrGQreCsjPt7I9mKCuP6xkI6VwK3HOqsHdRTc7m QpBiI2Dz8G8c6MY0jL7P307hKKON/VukZoZhxYTBrFtrUqatm7Fq27SIE+tPaAJcJ6aC L/Mk0UvHaICgXTRaIY2R92AAy1eTxWN+GL31lYa9YjcTzkkXp31PYADmg+lwqUVz8dHa ywxR8VWMgKkMmOXto67J8XYQR7zB253a5jWv5hEif1MRqxkxr2a6MnjmChq3XEkPeIDf 9ENA== MIME-Version: 1.0 X-Received: by 10.180.80.163 with SMTP id s3mr14687108wix.59.1419085958467; Sat, 20 Dec 2014 06:32:38 -0800 (PST) Received: by 10.27.177.218 with HTTP; Sat, 20 Dec 2014 06:32:38 -0800 (PST) In-Reply-To: <54267FD3.2080603@fsn.hu> References: <542560C1.9070207@fsn.hu> <54267FD3.2080603@fsn.hu> Date: Sat, 20 Dec 2014 15:32:38 +0100 Message-ID: Subject: Re: 16 exabytes of L2ARC? From: Nikolay Denev To: "Nagy, Attila" Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: freebsd-fs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Dec 2014 14:32:40 -0000 On Sat, Sep 27, 2014 at 11:13 AM, Nagy, Attila wrote: > On 09/26/14 14:49, Nagy, Attila wrote: > >> Hi, >> >> Running stable/10@r271944: >> # zpool iostat -v >> capacity operations bandwidth >> pool alloc free read write read write >> ---------- ----- ----- ----- ----- ----- ----- >> data 17.3T 40.7T 165 1.24K 1.63M 90.8M >> da0 4.31T 10.2T 41 318 418K 22.7M >> da1 4.32T 10.2T 41 317 416K 22.7M >> da2 4.32T 10.2T 41 317 416K 22.7M >> da3 4.31T 10.2T 41 317 418K 22.7M >> cache - - - - - - >> ada0 513G 16.0E 222 179 1.05M 2.79M >> ada1 511G 16.0E 222 180 1.05M 2.80M >> ---------- ----- ----- ----- ----- ----- ----- >> >> # egrep 'ada.*MB' /var/run/dmesg.boot >> ada0: 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 512bytes) >> ada0: 381554MB (781422768 512 byte sectors: 16H 63S/T 16383C) >> ada1: 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 512bytes) >> ada1: 381554MB (781422768 512 byte sectors: 16H 63S/T 16383C) >> > I've removed the cache devices and re-added them, now it's fine: > cache - - - - - - > ada0 355M 372G 24 0 151K 0 > ada1 345M 372G 12 505 71.7K 2.79M > > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > Hi, Did you figure out the root cause of this? I seem to be having the same issue: [14:31][root@nas:~]#zpool iostat -v | grep -A1 cache cache - - - - - - ada4p1 215G 16.0E 9 3 107K 322K uname -a : FreeBSD nas.home.lan 10.1-STABLE FreeBSD 10.1-STABLE #14 r274549: Sat Nov 15 14:43:56 UTC 2014 root@nas.home.lan:/usr/obj/usr/src/sys/NAS amd64 --Nikolay