From owner-freebsd-questions@FreeBSD.ORG Fri Apr 25 05:05:28 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 74353100 for ; Fri, 25 Apr 2014 05:05:28 +0000 (UTC) Received: from mail-pd0-f179.google.com (mail-pd0-f179.google.com [209.85.192.179]) (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 49E7E1CBE for ; Fri, 25 Apr 2014 05:05:28 +0000 (UTC) Received: by mail-pd0-f179.google.com with SMTP id g10so2715920pdj.38 for ; Thu, 24 Apr 2014 22:05:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=xUYUZK4xtoTULlRFIY1qoykuIWxYMs5/7VYtVMXbEK8=; b=hAY/5yklf7PhUautyb3ImVHZwskPYc6EjYLBxIyMgALqhUqBhD3u4J+XaTYx8VT1+T Cm7Qm3gnSzyDgVSZfBbbSBY8ygLwHtT5sMMjx6OcJurSXoFxgqLjVMAxfhNzvBCXRSOt Avl9APZy77yenYKAYYTQVEzWHuFqrqjaNTl8y62bie17acliZ7cAybivES2GjjnRGb7I 7uu3iGg/UaWBXFGwyq6By1c0N9dkB7v8Ms55RYjV8YH8W9fpfB0le9vqk86E8T56UaKI sOltpTdGu9593DLTU1IDPnQLcR7ljz4tvNOp6lkr023n+SN6wxu7u48g6hH7Xq7JwPDa E7zQ== X-Gm-Message-State: ALoCoQlCLg/rDW+JDG8+u+oaGoi8vP3aYqxGWoJSqIJTqhT6gHShJox67emST2MRw3H4mKlXtUVy MIME-Version: 1.0 X-Received: by 10.66.147.99 with SMTP id tj3mr5121613pab.47.1398402327618; Thu, 24 Apr 2014 22:05:27 -0700 (PDT) Received: by 10.66.217.168 with HTTP; Thu, 24 Apr 2014 22:05:27 -0700 (PDT) In-Reply-To: References: <53580129.5010909@ssimicro.com> Date: Fri, 25 Apr 2014 01:05:27 -0400 Message-ID: Subject: Re: FBSD jail versus VMWare? What services do YOU run in a jail? From: Alejandro Imass To: Boris Content-Type: text/plain; charset=UTF-8 Cc: FreeBSD Questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Apr 2014 05:05:28 -0000 On Fri, Apr 25, 2014 at 12:02 AM, Boris wrote: > Hi Alejandro, > > Can you move a 'live' jail from server to server? Not that I am aware at least not with EZJail The archive method needs the jail to be down AFAIK. > I have never tried but some people like the vMotion option from VMware and > for having tried it, it's quite impressive in action. > Each has it's advantages IMO. Pseudo-virtulization like Jails give you the advantage of little overhead, less resources, and IMHO nothing beats running on the real HW. Besides, VMWare costs a wagon load of money whilst FreeBSD Jails are basically free in license terms at least. Honestly, when I said "just like VMWare" I wasn't trying to actually compare, but rather illustrating that with EZJail you can get many of the benefits/easiness of use of VMWare, VirtualBox and alike, not particularly VMWare. EZJails archive and restore, flavours, and many other features of ezjail-admin add a lot of value on top of the already great Jail system. > For the rest, I used jails a long long time ago, I guess Marketing was not > behind jails the same way it has been behind VMware products although, to be > fair, GSX and ESX have be out there for ages...there has been a lot more > press since ESXi4.something and 5 > Actually, I don't think they are really comparable as in apples to apples without a clear set of constraints. In the OP's original question, Jails could actually provide a solution to an overly bloated pure virtualization environment, but its really depends on the specific application IMO. In our case, we just need to make the most of out of limited budget and Jails allow us to squeeze every bit out of our servers. We run literally dozens and dozens of Jails per server and pay $2-4K per server per year. I don't think we could pull that off with VMWare or any cloud env like AWS. Best, Alejandro Imass