Glad I saw this. UML has always been interesting to me, but I've never had the need or
time to really look into it. But I do wonder why UML is not more prominent than it is?
Seems like a slam dunk. It's fully userspace, cheap on resources, all that. And with
todays hardware I can't believe that, for midrange purposes and less, the userspace
performance impact would be that significant.
On the other hand, seems that LXC is taking over this use space (pun intended).
On the third hand, UML in a private cloud anyone?
-------------------------------------
> Check out OpenVZ/Linux-VServer and User-Mode-Linux.
>
> I use UML for all large scale testing since it's so cheap on memory/cpu as everything
> runs
> natively and with a reduced memory overhead.
---------- Original Message -----------
From: aklug@aklug.org
To: aklug digest users <aklug@aklug.org>
Sent: Thu, 09 Dec 2010 11:13:48 -0900 (AKST)
Subject: aklug Digest V9 #228
> aklug Digest Wed, 08 Dec 2010 Volume: 09 Issue: 228
>
> In This Issue:
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Android's Ruboto IRB
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: Dedicated Virtualization
> [aklug] Re: FriLinux
> [aklug] Re: Dedicated Virtualization
> [aklug] Xen / KVM ?
>
> ----------------------------------------------------------------------
>
> Date: Wed, 08 Dec 2010 10:12:31 -0900
> From: adam bultman <adamb@glaven.org>
> Subject: [aklug] Re: Dedicated Virtualization
>
> On 12/08/2010 10:03 AM, Christopher Howard wrote:
> > Hey guys, at work I managed to get hold of one (pretty nice) spare PC, and I want it
to be dedicated to just running VMs. The VMs will be mainly be used for testing purposes
(e.g., experimenting with software/networking configurations).
> >
> > I was wondering if I should go with what I know (Qemu built on a Linux base) or if I
should try out this "Xen" thing. Whatsay?
> >
> >
> Xen is good, but the last time I used it (~1 year ago) 'fixing' VMs that
> were broken was terribly difficult. The downside of Xen that I see:
> When you allocate RAM to a VM, it is 'taken' from the host OS, and
> reserved. (VMWare doesn't do that; at least, ESX doesn't.) (Yes, I
> know that oversubscribing is bad.) I haven't followed too closely with
> what RHEL is using to replace Xen, but it'd be a good idea to look into
> it's replacement.
>
> VMWare is another good one to try, since it'll more likely apply to any
> future positions you might hold ( depending on what you are planning on
> getting into, job-wise). I don't know of any large companies that use
> Qemu for virtualization (in production), but I know quite a few that use
> VMware. Getting your feet wet with VMWare would be good in any event.
>
> --
> Adam
>
> ------------------------------
>
> From: Leif Sawyer <lsawyer@gci.com>
> Date: Wed, 8 Dec 2010 10:29:40 -0900
> Subject: [aklug] Re: Dedicated Virtualization
>
> Christopher Howard writes:
> > Hey guys, at work I managed to get hold of one (pretty nice)=20
> > spare PC, and I want it to be dedicated to just running VMs.=20
> > The VMs will be mainly be used for testing purposes (e.g.,=20
> > experimenting with software/networking configurations).
> >=20
> > I was wondering if I should go with what I know (Qemu built=20
> > on a Linux base) or if I should try out this "Xen" thing. Whatsay?
>
> Big fan of kvm+qemu here. Lots of support for different HW platforms.
> It's possibly to run Arm, Sparc, whatever.
>
> Xen is falling by the wayside.
>
> VMWare is fine, if you want something desktoppy to play with, because
> the odds of you running ESX are going to be pretty low.
>
> ------------------------------
>
> From: "Joshua J. Kugler" <joshua@eeinternet.com>
> Subject: [aklug] Re: Dedicated Virtualization
> Date: Wed, 8 Dec 2010 11:24:04 -0900
>
> On Wednesday 08 December 2010, adam bultman elucidated thus:
> > VMWare is another good one to try
>
> I'll echo this. Getting networking going under VMWare is a cakewalk
> compared to when I've tried to do it under qemu, but maybe that'
> improved.
>
> j
>
> --
> Joshua Kugler
> Part-Time System Admin/Programmer
> http://www.eeinternet.com - Fairbanks, AK
> PGP Key: http://pgp.mit.edu/ ID 0x73B13B6A
>
> ------------------------------
>
> Date: Wed, 08 Dec 2010 14:21:59 -0900
> From: "Shane R. Spencer" <shane@bogomip.com>
> Subject: [aklug] Re: Android's Ruboto IRB
>
> I use sl4a for python/ruby. There is a neat interface library the sl4a people
> built to interface most scripting languages to android control functions.
>
> On 12/07/2010 09:03 PM, Christopher Howard wrote:
> > I might have mentioned this before, but just in case: I found this cool Android app
called Ruboto IRB. It allows you to run Ruby scripts on your Android phone, through
JRuby. The project is young I think, and still fairly buggy. But it seems to be making
fast progress: the update I downloaded today (through the Marketplace) came with an
example "demo-opengl.rb" script that displays spinning 3D cubes on the screen rendered
through opengl. And there were other example scripts that demo interface APIs, like
buttons, dialog boxes, and so forth.
> >
>
> ------------------------------
>
> Date: Wed, 08 Dec 2010 14:56:28 -0900
> From: Greg Madden <gomadtroll@gci.net>
> Subject: [aklug] Re: Dedicated Virtualization
>
> On Wednesday 08 December 2010 10:12:31 am adam bultman wrote:
> > On 12/08/2010 10:03 AM, Christopher Howard wrote:
> > > Hey guys, at work I managed to get hold of one (pretty nice) spare PC,
> > > and I want it to be dedicated to just running VMs. The VMs will be mainly
> > > be used for testing purposes (e.g., experimenting with
> > > software/networking configurations).
> > >
> > > I was wondering if I should go with what I know (Qemu built on a Linux
> > > base) or if I should try out this "Xen" thing. Whatsay?
> >
> > Xen is good, but the last time I used it (~1 year ago) 'fixing' VMs that
> > were broken was terribly difficult. The downside of Xen that I see:
> > When you allocate RAM to a VM, it is 'taken' from the host OS, and
> > reserved. (VMWare doesn't do that; at least, ESX doesn't.) (Yes, I
> > know that oversubscribing is bad.) I haven't followed too closely with
> > what RHEL is using to replace Xen, but it'd be a good idea to look into
> > it's replacement.
> >
> > VMWare is another good one to try, since it'll more likely apply to any
> > future positions you might hold ( depending on what you are planning on
> > getting into, job-wise). I don't know of any large companies that use
> > Qemu for virtualization (in production), but I know quite a few that use
> > VMware. Getting your feet wet with VMWare would be good in any event.
>
> No ones mentioned VirtualBox, it is owned by Oracle but it has an open source
>
> (OSE) edition, it is bundled with Debian. I use it after switching from
> VMware workstation. Not sure of any downsides resource wise, it is easy to use
> and I don't miss VMware.
>
> --
> Peace,
>
> Greg
>
> ------------------------------
>
> Date: Wed, 08 Dec 2010 15:11:47 -0900
> From: "Shane R. Spencer" <shane@bogomip.com>
> Subject: [aklug] Re: Dedicated Virtualization
>
> On 12/08/2010 10:03 AM, Christopher Howard wrote:
> > Hey guys, at work I managed to get hold of one (pretty nice) spare PC, and I want it
to be dedicated to just running VMs. The VMs will be mainly be used for testing purposes
(e.g., experimenting with software/networking configurations).
> >
> > I was wondering if I should go with what I know (Qemu built on a Linux base) or if I
should try out this "Xen" thing. Whatsay?
> >
>
> Check out OpenVZ/Linux-VServer and User-Mode-Linux.
>
> I use UML for all large scale testing since it's so cheap on memory/cpu as
> everything runs natively and with a reduced memory overhead.
>
> - Shane
>
> ------------------------------
>
> Date: Wed, 08 Dec 2010 15:12:30 -0900
> From: adam bultman <adamb@glaven.org>
> Subject: [aklug] Re: Dedicated Virtualization
>
> On 12/08/2010 02:56 PM, Greg Madden wrote:
> >
> > On Wednesday 08 December 2010 10:12:31 am adam bultman wrote:
> >
> >> On 12/08/2010 10:03 AM, Christopher Howard wrote:
> >>
> >>> Hey guys, at work I managed to get hold of one (pretty nice) spare PC,
> >>> and I want it to be dedicated to just running VMs. The VMs will be mainly
> >>> be used for testing purposes (e.g., experimenting with
> >>> software/networking configurations).
> >>>
> >>> I was wondering if I should go with what I know (Qemu built on a Linux
> >>> base) or if I should try out this "Xen" thing. Whatsay?
> >>>
> >> Xen is good, but the last time I used it (~1 year ago) 'fixing' VMs that
> >> were broken was terribly difficult. The downside of Xen that I see:
> >> When you allocate RAM to a VM, it is 'taken' from the host OS, and
> >> reserved. (VMWare doesn't do that; at least, ESX doesn't.) (Yes, I
> >> know that oversubscribing is bad.) I haven't followed too closely with
> >> what RHEL is using to replace Xen, but it'd be a good idea to look into
> >> it's replacement.
> >>
> >> VMWare is another good one to try, since it'll more likely apply to any
> >> future positions you might hold ( depending on what you are planning on
> >> getting into, job-wise). I don't know of any large companies that use
> >> Qemu for virtualization (in production), but I know quite a few that use
> >> VMware. Getting your feet wet with VMWare would be good in any event.
> >>
> > No ones mentioned VirtualBox, it is owned by Oracle but it has an open source
> > (OSE) edition, it is bundled with Debian. I use it after switching from VMware
> > workstation. Not sure of any downsides resource wise, it is easy to use and I
> > don't miss VMware.
> >
> >
> Yeah, I neglected to mention that I use VirtualBox on my workstation;
> but I consider it a 'desktop-style' virtualization rather than
> 'enterprise-style' virtualization. I use the non-OSE version since it
> has a few extra doodads (RDP and USB support, to name two), and the
> "Seamless Mode" in both editions is to die for, but again - I consider
> that a desktop productivity tool, and not something on which I'd deploy
> servers.
>
> --
> Adam
>
> ------------------------------
>
> Date: Wed, 08 Dec 2010 16:00:10 -0900
> From: Dan Wolf <dan-wolf@gci.net>
> Subject: [aklug] Re: Dedicated Virtualization
>
> Perhaps Proxmox would work for you http://pve.proxmox.com/wiki/Main_Page
>
> -----Original Message-----
> From: aklug-bounce@aklug.org [mailto:aklug-bounce@aklug.org] On Behalf Of
> Christopher Howard
> Sent: Wednesday, December 08, 2010 10:03 AM
> To: aklug@aklug.org
> Subject: [aklug] Dedicated Virtualization
>
> Hey guys, at work I managed to get hold of one (pretty nice) spare PC, and I
> want it to be dedicated to just running VMs. The VMs will be mainly be used
> for testing purposes (e.g., experimenting with software/networking
> configurations).
>
> I was wondering if I should go with what I know (Qemu built on a Linux base)
> or if I should try out this "Xen" thing. Whatsay?
>
> --
> Christopher Howard
> frigidcode.com
> theologia.indicium.us
> ---------
> To unsubscribe, send email to <aklug-request@aklug.org>
> with 'unsubscribe' in the message body.
>
> ------------------------------
>
> From: jimgribbin@gmail.com
> Subject: [aklug] Re: FriLinux
> Date: Thu, 9 Dec 2010 02:36:53 +0000
>
> I suspect you came in the building via the wrong doors.
>
> If you come in the=
> doors at the FAR EAST end of the building, it's difficult to miss us.
>
> Don=
> 't use those main building doors in the center of the building. Those door=
> s are ASD Offices. We are at Hiland Tech High School. It only has the East=
> end. There are no direct connections that I am aware of.
>
> Jim g
>
> Sent by nuvi=
> fone
>
> --- Original Message ---
> From: weatchu@gmail.com
> Date: 12/6/2010 7:37=20=
> PM
> Subject: Re: [aklug] FriLinux
>
> A couple of weeks ago, I tried to find the=
> friday meeting, I found
> that it was in the Anchorage School District build=
> ing, but walking
> around the place, could not find the room number.
>
> Maybe thi=
> s week I'll attempt again. Is the meeting always in the
> same room?
>
> Jon.
>
> On=
> Mon, Dec 06, 2010 at 04:55:42PM -0900, Jim Gribbin wrote:
> > Pretty quite=
> last Friday. Damien was there for a few minutes. Fielder was there for=20=
> a few.
> >
> > Left pretty much to my own devices, I managed to break X. Still=
> straightening that out.
> >
> > Oh well :-)
> >
> > --
> > Jim Gribbin
> >
> > Linux user=
> #179129
> > ---------
> > To unsubscribe, send email to <aklug-request@aklug.or=
> g>
> > with 'unsubscribe' in the message body.
> >
>
> ------------------------------
>
> Date: Wed, 8 Dec 2010 23:02:57 -0900
> Subject: [aklug] Re: Dedicated Virtualization
> From: michael huff <mphuff@gmail.com>
>
> On Wed, Dec 8, 2010 at 2:56 PM, Greg Madden <gomadtroll@gci.net> wrote:
> >
> >
> > On Wednesday 08 December 2010 10:12:31 am adam bultman wrote:
> > > On 12/08/2010 10:03 AM, Christopher Howard wrote:
> > > > Hey guys, at work I managed to get hold of one (pretty nice) spare PC,
> > > > and I want it to be dedicated to just running VMs. The VMs will be
> > mainly
> > > > be used for testing purposes (e.g., experimenting with
> > > > software/networking configurations).
> > > >
> > > > I was wondering if I should go with what I know (Qemu built on a Linux
> > > > base) or if I should try out this "Xen" thing. Whatsay?
> > >
> > > Xen is good, but the last time I used it (~1 year ago) 'fixing' VMs that
> > > were broken was terribly difficult. The downside of Xen that I see:
> > > When you allocate RAM to a VM, it is 'taken' from the host OS, and
> > > reserved. (VMWare doesn't do that; at least, ESX doesn't.) (Yes, I
> > > know that oversubscribing is bad.) I haven't followed too closely with
> > > what RHEL is using to replace Xen, but it'd be a good idea to look into
> > > it's replacement.
> > >
> > > VMWare is another good one to try, since it'll more likely apply to any
> > > future positions you might hold ( depending on what you are planning on
> > > getting into, job-wise). I don't know of any large companies that use
> > > Qemu for virtualization (in production), but I know quite a few that use
> > > VMware. Getting your feet wet with VMWare would be good in any event.
> >
> > No ones mentioned VirtualBox, it is owned by Oracle but it has an open
> > source
> > (OSE) edition, it is bundled with Debian. I use it after switching from
> > VMware
> > workstation. Not sure of any downsides resource wise, it is easy to use and
> > I
> > don't miss VMware.
> >
> > --
> > Peace,
> >
> > Greg
> > ---------
> > To unsubscribe, send email to <aklug-request@aklug.org>
> > with 'unsubscribe' in the message body.
> >
> > I'd +1 this suggestion, but that's just my personal taste. My impression is
> that Xen is rather on the
> broken side and IMO VirtualBox is easier to use and seems to have better,
> faster IO than Qemu/KVM.
> Networking is also easier (read:GUIfied) tho not as easy as VMWare's network
> manager.
>
> You can probably get the OSE version easily enough and it's perfect for what
> you want to do.
>
> As far as Qemu goes -my impression is that the non x86 architectures aren't
> very developed (eg you can't install anything
> but linux guests on qemu/sparc or qemu/macppc IIRC) and are sort of falling
> by the wayside.
>
> That said, if you're familiar with Qemu, it's still a better choice (IMO)
> than Xen (esp if you use KVM instead of Qemu).
>
> ------------------------------
>
> From: "Lee" <lee@afabco.org>
> Subject: [aklug] Xen / KVM ?
> Date: Thu, 9 Dec 2010 10:13:36 -1000
>
> I think someone was asking whether xen or kvm was the 'future'? At this point
> in time I think kvm has been adopted by most distros (redhat for example is
> abandoning xen in favor of kvm). Although I read that someone (Cisco?
> Oracle? Citrix?) has been pushing xen for their stuff.
>
> ------------------------------
>
> End of aklug Digest V9 #228
> ***************************
> ---------
> To unsubscribe, send email to <aklug-request@aklug.org>
> with 'unsubscribe' in the message body.
------- End of Original Message -------
---------
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Received on Thu Dec 9 12:38:29 2010
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