The piece I didn't see mentioned is that after cloning the sysres volume
and the SMP-maintained file system(s) such as the root, the file system(s)
must be renamed to something other than the source file systems. Typically
people use a substring of the &SYSR1 system symbol in IEASYM00 to establish
a relationship with the sysres set. For example, my res's are RESA01,2,3,
and the file systems are named OMVS.RESA.root and so on.
IEASYM00
SYSDEF
SYMDEF(&SYSR2='&SYSR1(1:4).02')
SYMDEF(&SYSR3='&SYSR1(1:4).03')
SYMDEF(&SYSRESID='&SYSR1(1:4)')
BPXPRM00 uses &SYSRESID
ROOT FILESYSTEM('OMVS.&SYSRESID..ROOT')
TYPE(ZFS)
MODE(READ)
After the clone and rename, mount the file systems read/write on a
directory, such as /Service, or /tmp/RESA. If you didn't combine all the
server pak-supplied file systems into one root, you must mount all the
lower level ones at the appropriate place under Service. For example,
mount OMVS.RESB.SIGYROOT at /Service/usr/lpp/cobol A simple clist or
exec can do this (I have an example). Finally, run a zone-edit to insert
/Service into path names (and alter sysres volumes too):
ZONEEDIT DDDEF.
CHANGE VOLUME(RESA01,RESB01).
CHANGE VOLUME(RESA02,RESB02).
CHANGE VOLUME(RESA03,RESB03).
CHANGE PATH('/tmp/RESA/'*,'/tmp/RESB/'*).
ENDZEDIT .
Apply the maintenance, unmount everything from Service, IPL the new
sysres, and go.
Ken Smith
State of Maryland
On Wed, Jun 24, 2015 at 11:28 AM, J O Skip Robinson <
[email protected]> wrote:
> I think David has the proper answer. There is nothing wrong with sharing
> the read-only ROOT file system. There should be a separate ROOT file system
> not for each LPAR (or combination thereof) but for each IPLable sysres. If
> you have two alternating sysres volumes, you should have two alternating
> ROOT file systems, one associated with each sysres.
>
> (I'm assuming that OP does not really SMPE APPLY maintenance to *any*
> running system but rather copies from the install target resvol and file
> system to the 'alternate' environment ahead of an IPL switch. Please do not
> disabuse me of that sanguine interpretation.)
>
> So with three LPARs, any or all that are IPLed from SYRES1 should also be
> using ZFS-1. As each system is IPLed from the alternate SYRES2, it also
> switches to ZFS-2 because it's vital that the file system match the
> maintenance level of the active sysres. We make the sysres-ZFS association
> by name to keep track of what's where:
>
> SYRES1 --> hlq.SYRES1.appl.ZFS
> SYRES2 --> hlq.SYRES2.appl.ZFS
>
> At any time these sets can be at different RSU levels or at different z/OS
> releases. If you manage more than two IPLable sysres volumes in the same
> sysplex, then you need one additional ZFS associated with each additional
> sysres.
>
> .
> .
> .
> J.O.Skip Robinson
> Southern California Edison Company
> Electric Dragon Team Paddler
> SHARE MVS Program Co-Manager
> 626-302-7535 Office
> 323-715-0595 Mobile
> [email protected]
>
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
> Behalf Of Jousma, David
> Sent: Wednesday, June 24, 2015 4:23 AM
> To: [email protected]
> Subject: Re: RSU apply on SYSPLEX
>
> You need to treat the ROOT filesystem (i.e. the stuff that comes from IBM)
> the same as SYSRES traditional datasets and have all the IBM supplied
> filesystems mounted read only. All of your customizations need to be in
> externally managed filesystems mounted at the proper places. When you IPL
> onto your new new SYSRES, you should also be getting the ROOT filesystem
> that matches that maintenance.
>
> If you are implying that you have customizations and are writing into each
> of the root filesystems, well, now you have your work cut out for you to
> remediate that, don’t you.
>
> _________________________________________________________________
> Dave Jousma
> Assistant Vice President, Mainframe Engineering [email protected]
> 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f
> 616.653.2717
>
>
>
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
> Behalf Of Mainframe Mainframe
> Sent: Wednesday, June 24, 2015 7:20 AM
> To: [email protected]
> Subject: Re: RSU apply on SYSPLEX
>
> Yes. I forgot to mention but we also following same way. We have two set
> of RES volume Primary and Alt and we apply RSU on Alt RES volume and once
> systems are stable with this then we clone this volume to Primary RES
> volume and run system from that .
>
> But my issue is, as these three systems are running with same z/OS version
> and have common RES volume but two different root file systems are
> involved. While applying RSU, root file system is getting affected. So, do
> I need to apply RSU separately in SYS01 and SYS02 systems.
>
> Or is there any other way of doing this.
>
>
>
>
>
>
> On Wed, Jun 24, 2015 at 4:36 PM, Jousma, David <[email protected]>
> wrote:
>
> > The reality is that you should NEVER by applying routine maintenance to
> > running system. Unless in a problem situation, I always apply
> maintenance
> > to my base environment which is NEVER ipled from. Then via a cloning
> > process, I create the new alternate sysres, and IPL my systems onto them.
> > That way, if you encounter problems, you also have a backout by
> > IPLing onto the old again.
> >
> > _________________________________________________________________
> > Dave Jousma
> > Assistant Vice President, Mainframe Engineering [email protected]
> > 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f
> > 616.653.2717
> >
> >
> >
> > -----Original Message-----
> > From: IBM Mainframe Discussion List [mailto:[email protected]]
> > On Behalf Of Mainframe Mainframe
> > Sent: Wednesday, June 24, 2015 5:37 AM
> > To: [email protected]
> > Subject: RSU apply on SYSPLEX
> >
> > I am in the process of applying RSU1504 on sysplex systems but the
> > issue is ,
> >
> > 1) Total Three systems are in sysplex and using same RES volume.
> >
> > 2) There are two root file systems. One is for SYS01 and other is
> > being used by SYS02/03.
> > 3) When I apply RSU from SYS01, system apply changes in SYS01 root
> > file system (ZFS.SYS01.ROOT) .
> >
> > 3) When I apply RSU from SYS02/03, system apply changes in SYS02/03
> > root file system ( OMVS.SYS02.SYSPLEX.ROOT). As SYS02 and SYS03
> > sharing same root file system and other file systems.
> >
> > So, I am little confused that how to go about. Please suggest.
>
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