From: Adam <""4thwormcastfromthemolehill\"{at}the field.near
the bridge">

Adam > wrote:
> http://www.linux.com/article.pl?sid=07/02/02/1632252
>
> Mainframes running linux images in vm'es.
>
Oh &

http://www.theregister.co.uk/2007/02/10/ibm_hypervisors/

"IBM this week marched its virtualization agenda forward on two
fronts, announcing new code for beastly mainframes and some labs-crafted
software for thin x86 systems.

Big Blue has spent a few years banging out about the idea of running
hundreds of Linux virtual machines on top of a mainframe. It's a nice way
to put a modern spin on grizzled kit.

With release 5.3 of z/VM, customers now run even more virtual machines - up
to a 1,000 of the bastards on a single copy of the hypervisor. We're not so
sure that many customers will need virtual machines in such quantities, but
IBM likes to throw out the big numbers.

More importantly, IBM has bulked up z/VM on a number of fronts.

New page table allocation makes it possible to support far more real
storage than today's 128GB limit with each z/VM image. "This can
benefit customers with large amounts of real storage, and may help reduce
or eliminate the need to spread large workloads across multiple z/VM
images," IBM said. "Better z/VM management of real storage can
benefit most customers who experience storage constraints, regardless of
the amount of central storage configured for z/VM use.""


Adam

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