W dniu 2013-02-02 18:20, bernardhines pisze:
We have had maintenance (MCL) applied to our HMC and OSA cards, we now need
to activate this maintenance.
The standard way to activate the applied maintenance is to "power on reset",
at this point we are unable to take an outage for this.
We have a short maintenance window, too short to power down our Linux, z/VM
Lpars and z/OS Lpars.
We have seen some posts on ways to individually offline and online (start
and stop) the OSA's to pull in the new maintenance.
Our question for anyone that has gone through something like this, is there
a sequence or procedure for this scenario? If so is there a documented "step
and order process" and most of all what "gotchas" should we be aware of?
System:
z/196
HMC 2.1.1
1. z/OS 1.12 (DB2, IMS, CICS, MQ) multiple Lpars
2. z/VM 5.4 hosting Linux 10, 11
3. OSA's (OSD, OSM, OSX and IQD) across all platforms.
Well, it depends much on CHPID type, port usage and the operating system.
For example if you have two OSD's you should be able to restart the
cards with no interruption to the network traffic.
For OSC usually short outage is acceptable.
General scenario for any chpid looks like the following:
1. use system (network) commands to deactivate the traffic. It can be V
NET,ID=majnode,INACT and/or many other commands/activities/
2. Use MVS command to VARY card_device,OFFLINE
3. Use MVS command CF CHP(cc),OFFLINE - that's for z/OS, of course
4. Use HMC/SE icon to toggle channel offline and online.
5. CF CHP(),ONLINE, VARY dev,ONLINE, VARY NET,ACT
BTW: IQD is internal network, not real card.
--
Radoslaw Skorupka
Lodz, Poland
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