From owner-freebsd-fs@FreeBSD.ORG Fri Mar 28 20:52:25 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 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 69F0E696 for ; Fri, 28 Mar 2014 20:52:25 +0000 (UTC) Received: from sasl.smtp.pobox.com (a-pb-sasl-quonix.pobox.com [208.72.237.25]) by mx1.freebsd.org (Postfix) with ESMTP id 27ED0129 for ; Fri, 28 Mar 2014 20:52:24 +0000 (UTC) Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTP id A005810320; Fri, 28 Mar 2014 16:52:18 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=date :message-id:from:to:cc:subject:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s=sasl; bh=k/zOqQAA7lpSYNBQjRbrN6ApJM4=; b=GT9pwMNgFFnP8IEBwA7jcBk1YCnR +pcdFE+EsLTDgXgaVnywxcCPZuUAVE17Xb0R0trnYfSYTa9B62Y1XRuf37CEvdP2 iUzIxMVKOSgks9HcdbHTIgY/7aJlGyE3ux9z1VfTUYjPJ3i+/mCCfNtOZf7s6hZJ ktSzt3UfdXQ9t1g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=date:message-id :from:to:cc:subject:in-reply-to:references:mime-version :content-type:content-transfer-encoding; q=dns; s=sasl; b=bz+vH8 Cd+Sa7KMEMJrGIkkwIBL4wQPd2KeQPOkXNaeGTrpFOVmDGdfBDLqtdYoXPXIIaR5 csYheovbZwcYwREh15pA8ffTbKZyaRS7taFSUQn3+BR2TXIIcFKJuXRdIg9Pfqcy K425e+LJXoad8FCEPaKa2qM+Dpg1fjq45CYEY= Received: from a-pb-sasl-quonix.pobox.com (unknown [127.0.0.1]) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTP id 969B41031F; Fri, 28 Mar 2014 16:52:18 -0400 (EDT) Received: from bmach.nederware.nl (unknown [27.252.207.198]) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTPA id A4A281031E; Fri, 28 Mar 2014 16:52:17 -0400 (EDT) Received: from quadrio.nederware.nl (quadrio.nederware.nl [192.168.33.13]) by bmach.nederware.nl (Postfix) with ESMTP id 9760433EDE; Sat, 29 Mar 2014 09:52:16 +1300 (NZDT) Received: from quadrio.nederware.nl (quadrio.nederware.nl [127.0.0.1]) by quadrio.nederware.nl (Postfix) with ESMTP id 635154043FFF; Sat, 29 Mar 2014 09:52:16 +1300 (NZDT) Date: Sat, 29 Mar 2014 09:52:16 +1300 Message-ID: <87ha6iqc5b.wl%berend@pobox.com> From: Berend de Boer To: Dmitry Morozovsky Subject: Re: zfs l2arc warmup In-Reply-To: References: <20140328005911.GA30665@neutralgood.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 EasyPG/1.0.0 Emacs/24.3 (i686-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) Organization: Xplain Technology Ltd MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: multipart/signed; boundary="pgp-sign-Multipart_Sat_Mar_29_09:52:16_2014-1"; micalg=pgp-sha256; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit X-Pobox-Relay-ID: D948786E-B6BA-11E3-8F98-873F0E5B5709-48001098!a-pb-sasl-quonix.pobox.com Cc: "freebsd-fs@freebsd.org" X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Mar 2014 20:52:25 -0000 --pgp-sign-Multipart_Sat_Mar_29_09:52:16_2014-1 Content-Type: text/plain; charset=US-ASCII >>>>> "Dmitry" == Dmitry Morozovsky writes: Dmitry> Please don't forget that, unlike L2ARC, if you lost ZIL Dmitry> during sync write, you're effectively lost the pool. Wow, is that true? I'm using a ZIL on Amazon AWS, and these machines are virtual, i.e. I have no guarantee they will exist. Obviously that's not usually a problem :-) I thought I would just lose my sync write, and my pool would still be there? Can people enlighten me if this is indeed correct? -- All the best, Berend de Boer --pgp-sign-Multipart_Sat_Mar_29_09:52:16_2014-1 Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit Content-Description: OpenPGP Digital Signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iQIcBAABCAAGBQJTNeEAAAoJEKOfeD48G3g5+O4P/0PNxqZWaXk0Cgtg6lNomBC6 +8/ma49zl5vx5GOE1yXaPki68NvyEyYSVFpDgSfXllwnF25r1sa6xh2CBDzOnk4S /+hoQ12I9hbShnaXnEABkjLHbAAeahqe7RWXtdNySFTCIxnrwVa7bUPhYUbOt5mh n6saz57Lr1AdBdDuFdwsz7uq4WbTqYk4PdGPL22aeHpCces6A8O7Zti7ZqzOgdLB j0MA1Ae5jsKS09O/lx4kWmGLUygMJmFrl6Oh6vMo6f2VIc+HYI1taUWn9Tt4HPsK jOnidbi3duAbMS7bmkmKDQP+kzbhMPTObtkqtePCIqmYcfUqexOMyfvRD5tysod+ DvknMdKKoMT9NtzpSfUNwZNgXUoblkEuwY6dDWkr2AyaLxrI1X7+JgXwVhbFsGCd IN0EnqNX/EPPETJ19Cmd84AN0gmChfUBdrxRQ2xr4obb/3frbqKdiN/hLybzkIeY 6kGTQ3j03YcN+CV5mXME5h/Dfl0GbwMi6WXkActh++5dbuWb3OQMQSzZf0EeJKzj OA+bCsM66+353rkB+yx/HK9fJ3AoqxfXwwAiBiKsz7CfaKKKmvH3vr1Ac5p6SmGO ANRtgtHdeX7EgX0MIwWyqXDSH17JFzu8L76vphvFCRlcY9QOUtusYTW+NISEdnnw JDurNmpXT6w4n3JHKmcB =4sPL -----END PGP SIGNATURE----- --pgp-sign-Multipart_Sat_Mar_29_09:52:16_2014-1--