There are also some serious performance issues with I/O. Xen is a much better way to go in the long run. See
http://bugs.gentoo.org/show_bug.cgi?id=70161 for the team that's working to bring Xen to life in Gentoo, and the Xen home page at http://www.cl.cam.ac.uk/Research/SRG/netos/xen/performance.html Matthew Marlowe wrote: >ESX is a completely different beast than workstation, or GSX for that matter. > >Good: >- Very, very stable >- The only real vmware software designed for server apps >- Performance VM QoS for disk, cpu, network, etc >- Easily run 30-40 VM's on a strong box w/ good mem >- Deals with lots of NIC's assigned to different vm's >- Per VM User Access Policies >- Very nice realtime performance reporting > >Bad: >- Dont use for apps that really need performance of >dedicated boxes >- Not cheap, especially if get all the management add ons. >- Setting up some of the networking is more complicated than >it needs to be. >- Not very good w/ linux 2.6 kernel support yet (read, dont do it) >- I don't find the rollback, and cloning functionality as useful >as others. In fact, I've seen some vm's be corrupted if you >select the "append" mode for disk writes, which creates >a redo log that can get lost if the server hardware crashes. > >Matt > >--- Original Message--- > To: gentoo-dev@lists.gentoo.org > From: John Mylchreest <[EMAIL PROTECTED]> > Sent: 5/04/2005 2:16PM > Subject: Re: [gentoo-dev] OffTopic: VMWare ESX > > > >>>Hi there, thanks for getting back to me. >>> >>>basically, What I was wanting to know is actual hands-on experience. >>>Whats it like? Pros? Cons? What to watch out for? what its exceptionally >>>good at? whats it exceptionally bad at? bugs? all the normal kind of >>>questions really. How is it so different to vmware workstation? what big >>>management (of guest OS and resource allocation) features are there? >>> >>>Also, if you can, how you use it. what it is you do with it? Application >>>clustering? etc etc. >>> >>>All the stuff which doesnt come out of press releases, reviews and >>>promos :) >>> >>>Cheers, in anticipation :) >>>Regards, >>>John >>> >>>P.S. DK, what happened last fall is water under the bridge. >>>Misconceptions all around, and glad to see your still here. >>> >>>On Wed, 2005-05-04 at 15:12 -0400, Omkhar Arasaratnam wrote: >>> >>> >>>>John Mylchreest wrote: >>>> >>>> >>>> >>>>>Hi All, >>>>> >>>>>Apologies for posting my question to such lists, but it hits the exact >>>>>audience I'm after a response from :) >>>>> >>>>>Does anyone at work run Vmware ESX Server? If so, could they please get >>>>>in touch with me so that I might talk about experiences? >>>>> >>>>>Regards, >>>>>John >>>>> >>>>> >>>>> >>>>> >>>>> >>>>John, >>>> >>>>I've worked with it before and have a number of colleagues in the field >>>>- what's up? >>>> >>>>-- >>>> >>>>Omkhar Arasaratnam - Gentoo PPC64 Developer >>>>[EMAIL PROTECTED] - http://dev.gentoo.org/~omkhar >>>>Gentoo Linux / PPC64 Linux: http://ppc64.gentoo.org >>>> >>>> >>>> >>>-- >>>Role: Gentoo Linux Kernel Lead >>>Gentoo Linux: http://www.gentoo.org >>>Public Key: gpg --recv-keys 9C745515 >>>Key fingerprint: A0AF F3C8 D699 A05A EC5C 24F7 95AA 241D 9C74 5515 >>>Web: >>>http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x9C745515 >>> >>> >>> >>> > > > > -- gentoo-dev@gentoo.org mailing list
