From owner-freebsd-xen@FreeBSD.ORG Thu Mar 7 05:06:02 2013 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 281E45DA for ; Thu, 7 Mar 2013 05:06:02 +0000 (UTC) (envelope-from koukoukachu@gmail.com) Received: from mail-qe0-f46.google.com (mail-qe0-f46.google.com [209.85.128.46]) by mx1.freebsd.org (Postfix) with ESMTP id AD89AEFE for ; Thu, 7 Mar 2013 05:06:01 +0000 (UTC) Received: by mail-qe0-f46.google.com with SMTP id a11so45437qen.5 for ; Wed, 06 Mar 2013 21:06:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:references:in-reply-to:subject:date:message-id :mime-version:content-type:content-transfer-encoding:x-mailer :thread-index:content-language; bh=GQ7KAhbemT+gO/w+WPo7ySZxMxWX0qgLaHTxbtoTVDw=; b=de1S8ZOxYvvhrjhAdWhJy+IzLxCmBC7yQCAz9wWqpEnPvBs81fVGS6LWUvkhjU7Y2g +hzaT5JRtd51uKwzo1e3aBp+LBFYW8DDW1sVDU4w1BsXwFm8rsqh+s++tS8uc4gebPyV H2JtAgBlFG7rtotHEqfJF5c8tTHp5LNoG6g2SI5wFkHWEJgLE7DKHEAW8/JuS8QqAuqh js9p9mU1EnP+B/ebq8YuGKTVrAtuWax86DVY0gbmBeqJhCZbDTyOwI5Jf1jt07QBe10I uCxgyLhBR6Qtv0gVCETop0wWq/N/snhbcqq/akbtsB7JAuOKz6T1FKovf3cfz909yObm Vz0g== X-Received: by 10.229.176.16 with SMTP id bc16mr10930483qcb.43.1362632355872; Wed, 06 Mar 2013 20:59:15 -0800 (PST) Received: from Hephaestus ([74.61.237.229]) by mx.google.com with ESMTPS id o5sm1030724qao.12.2013.03.06.20.59.13 (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 06 Mar 2013 20:59:14 -0800 (PST) From: "Chris Bachmann" To: "'Jay West'" , "'Mark Felder'" , References: <000901ce1aa7$90704320$b150c960$@ezwind.net> <000601ce1aed$97e06540$c7a12fc0$@ezwind.net> In-Reply-To: <000601ce1aed$97e06540$c7a12fc0$@ezwind.net> Subject: RE: misc. questions Date: Wed, 6 Mar 2013 23:59:11 -0500 Message-ID: <037601ce1af0$83be19b0$8b3a4d10$@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: AQKL4ehw6L2D+tg443ETJqm5K2YJBgFv1UkzAhkruCSXAdQ+0A== Content-Language: en-us X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Mar 2013 05:06:02 -0000 I haven't seen any solutions to the time problems. I have a ton of debian vm clients as well and they have the same issue. I've just gotten used to installing ntp to keep the clocks current. -----Original Message----- From: owner-freebsd-xen@freebsd.org [mailto:owner-freebsd-xen@freebsd.org] On Behalf Of Jay West Sent: Wednesday, March 06, 2013 11:38 PM To: 'Mark Felder'; freebsd-xen@freebsd.org Subject: RE: misc. questions Mark wrote... > You're having success with Xenserver 6.1? That's good news. I wonder > why XCP 1.6 is unable to boot FreeBSD if there's an emulated DVDROM? :( Yes. Stock install 64bit 9.1-R as HVM, recompile kernel using supplied XENHVM config file. Then there's a few things to tweak before rebooting, one is fstab because of the different naming convention for disk devices or you choke on reboot after install (you can still do it after by entering correct device in boot string). The other is the cd drive, you have to remove the cd device (see http://support.citrix.com/article/CTX132411). There may be another step I'm forgetting, but that's the basic gist. Oh, and fix rc.conf to use the xen (xn0) network device. We are still having one really nagging issue - timekeeping. The clocks are way off and fluctuate wildly. FreeBSD is selecting the clock source (from several possibilities) that already has the highest stability rating, so I haven't tried setting the sysctl to use a different clock source. I see no way to fix this and it's pretty crippling in my environment anyways. Anyone have a fix for that? >If you're using pf, you will certainly need to set net.inet.tcp.tso=0 By pf I assume you mean the freebsd firewall? We don't use that, all the firewall stuff is via a frontend pfsense install (non-vm), so I assume the above setting isn't required? >As far as the other offloading -- I put this on my NICs: >ifconfig_xn0="(your stuff here) -txcsum -rxcsum -lro -tso" Ah, good to know. Thanks! >We usually install the same version on the VM and rsync the entire OS over. Then replace the kernel with the XENHVM one, do a bit of tweaking (rc.conf, pf.conf, fstab), and move on. The "best" way I found to do this (WRT speed & functionality) was to just use "dump" on the old machine, create the vm, then use "restore". That being said, I can understand the commercial citrix xenserver being slow to implement "XenConvert" on freebsd... but I'm surprised that the open source Xen doesn't have a tool that turns a bare metal freebsd install into an OVF/VDI file. Surely someone is working on this. Fortunately, all our freebsd boxes are now virtualized, but I'm sure others are wanting "XenConvert" to work on FreeBSD. Thanks a ton for the input folks! Jay _______________________________________________ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org"