From owner-freebsd-questions@FreeBSD.ORG Wed May 7 09:49:47 2014 Return-Path: Delivered-To: freebsd-questions@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 CA7E6B2F for ; Wed, 7 May 2014 09:49:47 +0000 (UTC) Received: from mail-yh0-x233.google.com (mail-yh0-x233.google.com [IPv6:2607:f8b0:4002:c01::233]) (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 8A463FE2 for ; Wed, 7 May 2014 09:49:47 +0000 (UTC) Received: by mail-yh0-f51.google.com with SMTP id f10so632709yha.10 for ; Wed, 07 May 2014 02:49:46 -0700 (PDT) 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=eug4+gCwWCpVOrgYpbpT387d4c2MaQWKVGQH92rrLdg=; b=Ph7UP7GG+IgeuGcBjJ/sieQN8neBIoIcDD/bQX9U+5Us4ycoj8C2FoGynirBoCRYW5 Y0S+83bvR9AB0uyw39XyQuhlkaLJRFFf+dOPDLqfBdn1qc7LJDXV+CgdG8XRfmCHcvct SuHozrAlx4pLcVvYLY3g5Vy+y1FGAVS0tbJtC7UlZZGG6ts2PH7lvtpR7EnynXW+KMCW X8605bqFJtjVWHA//NTr8JHkho114hOxeGtoe0PXkE5V+EAOXQHdJWDFxcFNFenpGwB6 KVz24kVIjWDl1L/e0XcJKAVmPdRxgsNoHuCu3C7SoVyyHddAFsbOEZtJ3GkT6oJ+g/Ua KHNA== MIME-Version: 1.0 X-Received: by 10.236.189.198 with SMTP id c46mr66555342yhn.47.1399456186439; Wed, 07 May 2014 02:49:46 -0700 (PDT) Received: by 10.170.54.8 with HTTP; Wed, 7 May 2014 02:49:46 -0700 (PDT) In-Reply-To: <5369C434.1090409@my.hennepintech.edu> References: <53697D8B.2060906@gmail.com> <5369B4A1.40506@gmail.com> <5369B8A3.7020403@my.hennepintech.edu> <5369C376.7000307@gmail.com> <5369C434.1090409@my.hennepintech.edu> Date: Wed, 7 May 2014 10:49:46 +0100 Message-ID: Subject: Re: Swap on ZFS From: krad To: Andrew Berg Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18 Cc: FreeBSD Questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 May 2014 09:49:48 -0000 the check summing of swap is quite a big deal in my opinion. You have your nice big server with ECC ram, but you do need to page some stuff in and out. Now you go and get some corruption on your disks, which you then feed back into your ram making the ecc irrelevant. On 7 May 2014 06:27, Andrew Berg wrote: > On 2014.05.07 00:24, Rolf Nielsen wrote: > > What would be the point of COW, snapshots and clones of swap? > None, but the flexibility wrt to size is what people want. Start big, > track usage, and resize as desired. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >