From owner-freebsd-fs@FreeBSD.ORG Thu Feb 19 14:22:21 2015 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E07DA404 for ; Thu, 19 Feb 2015 14:22:21 +0000 (UTC) Received: from mail-ie0-f179.google.com (mail-ie0-f179.google.com [209.85.223.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A8605C59 for ; Thu, 19 Feb 2015 14:22:21 +0000 (UTC) Received: by iecar1 with SMTP id ar1so9728984iec.11 for ; Thu, 19 Feb 2015 06:22:20 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=/5MIxCwSbSeN9dcJz3/i5a38E6H5vtZ/8OahMK8pDYM=; b=lwoJeaFUwwexoM2t2Egmsq6QaDzvdZ6kLpq0EbyoC/SZZO1ObeXxZRLL4OUJ1HRxjV Z0N/NjQ/cFFWzeGSkeQWj+HZiVIwei6ybw260gKFttFSObU79kFBgw38+CwUNRDJgqjT KIdbnIl8yycx6azHc0mBNdlk7zADpLQEjq92T1HXBM7eDxyy4vJurdbiZNX+P8jLrdcD MQzBr+XOxl7SMXtuc7fh9zLxAA4NBBlm1oLfX0X8mTzDWbJ+V9felf55OYmEnEu5KIlm u3KYjq9j1xPjP/N9DrM9Nv2W5JLp4gMHpvpegW5a+BYRBXCB5tosHXBS/h6AX8vPFIf1 x+8w== X-Gm-Message-State: ALoCoQnOJnRZs1DKTEaI3bHbr2eoy3tuWk5Q8tV4hMQdAVQcHtT2oiakBR4A2L8xJY4lSNVTVGHE X-Received: by 10.42.77.9 with SMTP id g9mr6370331ick.78.1424355740328; Thu, 19 Feb 2015 06:22:20 -0800 (PST) Received: from kateleycoimac.local ([63.231.252.189]) by mx.google.com with ESMTPSA id m7sm6127305iom.12.2015.02.19.06.22.19 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Feb 2015 06:22:19 -0800 (PST) Message-ID: <54E5F19A.3080804@kateley.com> Date: Thu, 19 Feb 2015 08:22:18 -0600 From: Linda Kateley User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: freebsd-fs@freebsd.org Subject: Re: Creating zpool on NVMe Disks takes forever References: <54E5BB12.3060707@fuckner.net> <54E5CF6E.5030906@multiplay.co.uk> <54E5D574.8020406@fuckner.net> In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit 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: Thu, 19 Feb 2015 14:22:22 -0000 On 2/19/15 7:02 AM, Tom Evans wrote: > On Thu, Feb 19, 2015 at 12:22 PM, Michael Fuckner wrote: >> On 02/19/2015 12:56 PM, Steven Hartland wrote: >>> Disable trim on init: >>> sysctl vfs.zfs.vdev.trim_on_init=0 >> this fixed it, thx! >> >> but why does it take >8h to trim 2x 400GB? Or is trimming handled >> differently on NVMe than on HDD/SSD? > TRIM/UNMAP is simply an SATA/SCSI command that is sent to a device. > What the device does when it gets that command is up to the controller > and firmware on the device. It would be nice to know what nvme you have so we know that the firmware for this particular one will be handled poorly? > > Cheers > > Tom > _______________________________________________ > 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" -- Linda Kateley Kateley Company Skype ID-kateleyco http://kateleyco.com