We have active DB2Connect gateways running on each of our IFLs (under VM).
The DB2Connect clients are configured to point to primary and alternate
gateways - if one gateway goes down, client traffic is automatically
redirected to the other. When we need to apply VM maintenance, we shecdule
one system to go down and back up, then the other.
This could be done even if you only have one CEC with a single IFL. Simply
define two VM LPARs to share the IFL.
Mark Wheeler, 3M Company
Rich Smrcina
<[EMAIL PROTECTED]
om> To
Sent by: The IBM IBMVM@LISTSERV.UARK.EDU
z/VM Operating cc
System
<[EMAIL PROTECTED] Subject
ARK.EDU> Re: Keep VM 24X7 365 days
01/22/2007 02:13
PM
Please respond to
The IBM z/VM
Operating System
<[EMAIL PROTECTED]
ARK.EDU>
I have a customer with two z9's. They have an identical I/O
configuration on each machine. If they need to do maintenance on one
z/VM, they bring down the Linux machines on one system and bring them
back up on the other system. They essentially have their own hot site,
it isn't exactly 24X7, but it's real, real close.
Bringing the Linuxes down on one an up on the other can be done in a
matter of minutes (and not too many of them).
[EMAIL PROTECTED] wrote:
>
> We have Linux guests running on VM, DB2connect is running on Linux.
> The application DB2 Connect requires 24X7 for 365 dsys. We have one VM
> now.
> What's the best way to prepare for this. We need to ipl VM for the
> upgrade, system abends
> or system config changes. If we create a second VM, how do we switch
> from one to another VM.
>
>
> Thanks,
>
> Ann
>
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--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
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