| |
|
 |
|
 |
|
|
|
| |
|
|
xen-users
Re: [Xen-users] Clustering
On Apr 6, 2011, at 12:34 PM, Jonathan Tripathy wrote:
I'm still in deep thought about distributing raw CPU power across
multiple machines for Xen DomUs. Does Amazon really only run their
DomUs on single boxes? So their marketing that says "Elastic
Computing" is just a simple stop DomU, change config file, resize
lvm volume and restart DomU?
You don't really have to stop DomU to change all parameters -- a LVM
resize would require it though.
Anyway, EC2 does not even have persistent storage, so there's no LVM
there -- it's all about the CPU and RAM. And increasing CPU and RAM
does not require the DomU to be restarted (see "xm mem-set" and "xm
vcpu-set").
The term "elastic" comes from the idea that you can virtually
increase / decrease CPU and RAM according to your needs. It does not
mean you can "stretch" a VM to a size larger than a single physical
server and span it across multiple boxes.
Their largest VM most likely takes an entire physical server.
Best regards,
Eduardo
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
|
|
| |
|
Home