6 Sep
2007
6 Sep
'07
7:50 p.m.
Patrick Finnegan wrote:
I suspect it's probably actually helping to sell z/OS too. z/OS does
high-performance database work much better than Linux. Why have a
separate database server and a separate web server when you can do both
on the same machine and have them talk to each other over high-speed
intra-machine links instead of much slower LAN or cluster interconnect
hardware?
Linux has definitely started to displace z/VSE though. There's a bit
too much overlap. I have seen installation with all three (and
sometimes even z/TPF and others) on the same machine for the same
application systems.
Peace... Sridhar
Indeed,
tho' I don't know a lot about mainframes, I have a feeling
that most Linux/390 is deployed on z/VM - which is to say, in an LPAR
under VM - rather than under z/OS, which is to say, MVS. Linux is
probably actually displacing MVS - z/OS - rather than helping it.
Yeah, but zVM isn't free any more than zOS is. In effect, "zLinux" is
helping IBM sell zVM. (And, more importantly to IBM, helping to sell
maintenance contracts, and consulting work).