That will greatly depend upon the amount of traffic generated by those
virtual machines. There could conceivably be a number of virtual
switches defined spread out over a number of OSA ports (or just one, as
I described earlier). We're not privy to the actual network configuration.
Britz, Anton - CO 7th wrote:
Hi Rich,
So 3 OSA express ports can do the same work as 130 Linux servers ?
Anton Britz
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Rich Smrcina
Sent: Wednesday, August 01, 2007 4:21 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: FW: IBM saves $250 million consolidating Linux servers on
to mainframes | NetworkWorld.com Community
z/VM simulates the function of a hardware switch (called the Virtual
Switch). Each virtual machine (and even TCP/IP on VM itself) can use
the virtual switch to access the 'real' network. The traffic from the
machines on the virtual switch can be load balanced (as of z/VM 5.3)
over 3 OSA Express ports.
Lindy Mayfield wrote:
Just curious, because I don't know how the hardware works, if 30
mainframes do the work of 3,900 servers, that means 1 mainframe does
130.
Does that mean that potentially that 1 mainframe has the equivalent of
at least 130 network cards? I can see how most of the hardware is
virtualized, but the networking I don't quite see, yet. How does that
part work?
Lindy
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