Re: [SAGE] JAILS (Re: Respondents needed for article on sysadmin survival)

[Philip Brown <phil@bolthole.com>]

On Sun, Jan 18, 2004 at 02:38:06AM -0500, Brandon S. Allbery KF8NH wrote:
> On Sun, 2004-01-18 at 02:20, Philip Brown wrote:
> > are you saying that with VMware, you can PERMENANTLY 'clone' an existing
> > instance, and then maintain the two completely separately from that point?
> 
> Install a virtual machine, then shut down vmware (or that instance, for
> GSX/ESX).
> Copy its configuration (foo.cfg and virtual disks) elsewhere.


so, conceptually, and disk space wise, identical to just taking a system
snapshot of a normal system (eg flash archive), and installing to another
system.


For same-system images, the difference with vmware vs other methods being
that you're using double memory and disk space for everything, whereas with
jails or zones, you get to have some amount of sharing for OS binaries, and
core kernel driver memory