From owner-freebsd-questions@FreeBSD.ORG Sat Jun 25 17:17:12 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 98B471065670 for ; Sat, 25 Jun 2011 17:17:12 +0000 (UTC) (envelope-from jrisom@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 5F8458FC0C for ; Sat, 25 Jun 2011 17:17:12 +0000 (UTC) Received: by iwr19 with SMTP id 19so4352747iwr.13 for ; Sat, 25 Jun 2011 10:17:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :subject:content-type:content-transfer-encoding; bh=eLVdh2kYLnNCvT2SiUL6u8EdIIGZySD2m9mvR7URtzo=; b=hdsT9Y3FLYLbyKRaOtK540upCe3yuqW952BvzyaH5W0+DgpkUuFG/BVRdTNBF0Laak BWoooo8GiGf0BTOYQCR8rNwBdXVqvX+N5jhhpKqdYwZCShbdNL1JPcoZVXh0Uc+wX3jc 1GqZpfEngY0l+JNXAt+NkqDNQdnzYpPZnTsuo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; b=wkMBvKSWCq+VVsoSND/lThMjDcUApnNtxWpFSD8FL7Z3qKEH01hgK02Oo7BujpIxIE 0+ReSCaZbXbpwAXOFDDziMmTsItk5Rdxqrm8YzT7ebUHSkg3pjYYttFdPlq4JtWRfh7L FVrGncbTsrp0LIRGCpzfLhD6eNorux1K/C9lo= Received: by 10.42.76.6 with SMTP id c6mr5131645ick.50.1309022231712; Sat, 25 Jun 2011 10:17:11 -0700 (PDT) Received: from [192.168.1.6] (c-98-212-201-29.hsd1.il.comcast.net [98.212.201.29]) by mx.google.com with ESMTPS id w11sm2090675ibw.7.2011.06.25.10.17.10 (version=SSLv3 cipher=OTHER); Sat, 25 Jun 2011 10:17:11 -0700 (PDT) Message-ID: <4E06180F.7090409@gmail.com> Date: Sat, 25 Jun 2011 12:17:03 -0500 From: Joshua Isom User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.18) Gecko/20110616 Lightning/1.0b2 Thunderbird/3.1.11 MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Performance of a USB ZIL for ZFS X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Jun 2011 17:17:12 -0000 I was wondering if anyone had tried using a decent USB flash drive for the ZIL. I know it'd be hard finding one fast enough, but some from patriot seem like they might be suitable for home use. Part of the idea is to just minimize hard drive thrashing and the wear and tear associated with it. If it helps prevent the drives from going bad, and doesn't hurt performance too bad all the better. But if it's going to hurt performance too much or not help prevent thrashing there isn't a point.