Reindl Harald wrote:
Am 29.06.2013 23:38, schrieb Bill Davidsen:
Reindl Harald wrote:
"model name: QEMU Virtual CPU version 1.0.1"
what the hell - on VMware you have the same CPU as the host and only "VMware EVC"
is filtering CPU capabilities to provide relieable hot-migration between hosts
by make only the flags of the oldest CPU in the cluster visible to guests
That's why we use KVM, migrations may not be within a cluster. Or be real time "migrations" as you are thinking of
it, but rather may involve being backed up until the next time there is a support need for the machine. Different
environment, different goals
the goal of virtualization in production is live-migartion and failover
this way you hve zero downtime at host-upgrades / reboots
I see the problem, you have mistaken YOUR goal for THE goal.
OUR goal is to be able to bring up some set of test machines for a short time,
and 100% uptime isn't an issue. Being able to bring up machines on whatever
hardware is currently in burn-in, or sitting around, IS a goal, it saves us from
having to keep a machine around just for that purpose. As long as there is such
a machine, we have satisfied our hardware requirements, so we don't need a hot
backup or the admin issues a cluster incurs.
--
Bill Davidsen <davidsen@xxxxxxx>
"'Nothing to hide' does not imply 'nothing to fear'"
- me
"AT&T could not seriously contend that a reasonable entity in its position
could have believed that the alleged domestic dragnet was legal."
-judge Vaughn R. Walker of the U.S. District Court
for the Northern District of California, EFF vs. AT&T
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