We've only had 1 problem to date on our very busy (overloaded :) z9-109
2 engine, 80 linux machine and we've had 5.2.0 there since 1/21.
We had MPROUTE hang last week. It was due to *something* in our network
which caused our MTU to change and MPROUTE to hang. Workaround fix
(before PK20644 closes) is to code MTU on the LINK statements (instead
of just in the MPROUTE CONFIG) and to apply:
CMS
VM63819 - LONG RUNNING C APPLICATION HITS OUT-OF-STORAGE ABEND
CONDITION
UM31618 R510
UM31619 R520
.
LE APARS (For ALL z/VM R440/R510/R520 systems - same PTF all releases)
VM63690- MPROUTE HANGS AFTER IOCTL() ABEND
UM31365
.
VM63755 - NEW FUNCTION IN Z/VM LE
UM31521
.
VM63778 - MPROUTE NOT RESPONDING TO COMMANDS FROM AUTHORIZED USER
UM31470
.
VM63507 - VARIOUS ABENDS WHEN NON-LE CODE USES AN LE STACK FRAME
UM31245
.
VM63795 - LE-BASED APPLICATION HANGS AFTER RECOVERABLE ABEND
UM31480
(just 2 of those weren't on my 5.2.0 system with rsu 501).
Apparently, this is also a 5.1.0 problem too - we just haven't seen it
on our 5.1.0 systems.
Other than that bad day, everything's been chugging right along (and
performing very nicely).
(Operations commented that a "bad switch" in the network caused problems
on lots of things - that was as much as I've been able to find out).
Marcy Cortes
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-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Alan Altmark
Sent: Tuesday, March 28, 2006 13:52
To: [email protected]
Subject: Re: [IBMVM] Update on z/VM 5.2.0 problem
On Tuesday, 03/28/2006 at 11:05 PST, "Austin, Alyce (CIV)"
<[EMAIL PROTECTED]> wrote:
> Because of the "growing pains" with 5.2, is support for z/VM 4.4 going
> to be extended beyond 9/06?
Alyce, what you aren't hearing about are all the sites that have z/VM
5.2
running with *no* problems; as stable as previous releases. Yes, there
are a *few* sites that are having stability problems, but we are
addressing them rapidly and with good results.
So at this point, no, we have no plan to extend service for z/VM 4.4,
but
it is an interesting idea in any event, and it's something we'll think
more about.
Alan Altmark
z/VM Development
IBM Endicott
