From owner-freebsd-current@FreeBSD.ORG Thu Oct 10 17:03:45 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 3F643D1D for ; Thu, 10 Oct 2013 17:03:45 +0000 (UTC) (envelope-from satan@ukr.net) Received: from hell.ukr.net (hell.ukr.net [212.42.67.68]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id EDC042BBB for ; Thu, 10 Oct 2013 17:03:44 +0000 (UTC) Received: from satan by hell.ukr.net with local ID 1VUJeB-000Iim-0A ; Thu, 10 Oct 2013 20:03:35 +0300 Date: Thu, 10 Oct 2013 20:03:34 +0300 From: Vitalij Satanivskij To: Allan Jude Subject: Re: ZFS L2ARC - incorrect size and abnormal system load on r255173 Message-ID: <20131010170334.GA71635@hell.ukr.net> References: <1381166916.122992963.5h9ygiri@frv45.ukr.net> <1381170764.32684.31088349.343931EE@webmail.messagingengine.com> <20131007185032.GA82932@hell.ukr.net> <20131007211201.GA89306@hell.ukr.net> <20131010092223.GA28347@hell.ukr.net> <5256D9D4.2030308@allanjude.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5256D9D4.2030308@allanjude.com> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Oct 2013 17:03:45 -0000 AJ> Some background on L2ARC compression for you: AJ> AJ> http://wiki.illumos.org/display/illumos/L2ARC+Compression I'm alredy see it. AJ> http://svnweb.freebsd.org/base?view=revision&revision=251478 AJ> AJ> Are you sure that compression on pool/zfs is off? it would normally AJ> inherit from the parent, so double check with: zfs get compression pool/zfs Yes, compression turned off on pool/zfs, it's was may time rechecked. AJ> Is the data on pool/zfs related to the data on the root pool? if AJ> pool/zfs were a clone, and the data is actually used in both places, the AJ> newer 'single copy ARC' feature may come in to play: AJ> https://www.illumos.org/issues/3145 No, both pool and pool/zfs have diferent type of data, pool/zfs was created as new empty zfs (zfs create pool/zfs) and data was writed to it from another server. Right now one machine work fine with l2arc. This machine without patch for corecting ashift on cache devices. At last 3 day's working with zero errors. Another servers with same config similar data, load and so on after 2 day work began report abouy errors. AJ> AJ> AJ> AJ> -- AJ> Allan Jude AJ> AJ> _______________________________________________ AJ> freebsd-current@freebsd.org mailing list AJ> http://lists.freebsd.org/mailman/listinfo/freebsd-current AJ> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"