Tangent 1:  If your HMC is defined as your system console then there's a 
way to get the system console screen on that and you wouldn't have needed 
to go to some PC with iSeries access loaded on it.  I could go on about 
the beauty of this but you have other priorities.
Sounds like you were using your HMC recently so, unless your firmware got 
upgraded because this is your first full system shutdown in years then 
that shouldn't be the issue.  We get this up and running remind me how to 
show you how to check your firmware levels.  Also remind me how to show 
you how to check who does firmware upgrades:  hmc or cumes.  If you're 
using a hmc ALWAYS set it to hmc.
Here's a V5R4 thing they buried in a V5R4 cume that mentions D200B077:
MH01117  NONE  09/30/08 HOT:UPT:HE:LPM: DSI in pagerEndCopy       MH01136  
 
                         during J2 stress te
                         Migration fails to complete if processors  
                          were removed prior
                         D200B077 - Partition Shutdown Hangs  
                         P6 L2 Cache UE's not writing an entry  
                         into the line del
                         iFST:  B60069D9 error logs surfaced by  
                         HEA on RCHASTMN
                         Tower resources either Unknown or  
                         Occupied status after
                         GA5:IH:FST:manhunter: SRC:A181D000 is  
                         recorded when I i
                         HEA:  Missing Interrupt Handler  
                         Incorrectly Handling EQ
                         GA5: FST:  HMC went to incomplete while  
                         FW update.
                         P6_Field:  /tmp contents not gathered  
                         with FSPDUMP
                         MPV: IH 154: sunfire: Processor APR did  
                         not recover cor
                         MPV: Harbug (TOD_OSC0_OUT_R to GND) on  
                         HV8 machine syst
                         GA5:FST:CLD:bentleyfp1: PE B181EF88 in  
                         Slow IPL
                         HV8-ODC:Shimlafp1:System in "Incomplete"  
                         state when add
                         GA3SP2: B181E630 reported while GA1SP1->  
                         GA3SP2
                         IH: Balm:  Rings missing for p2 c0 in SH  
                         dump
                         FST:GA5:IH:Joker:Lost IO on IPL and  
                         B7006981 and B70069
                         Phyp usable lmb count greater than target  
                          after node ad
                         System Level Activate Does Not Complete  
                         PRD simulator changes  
                         P6_Field:  eMLx system crashed during  
                         runtime & posted SRC B
                         Fix Pack 01EL320_083_045  
                         HDW CIRC - Apply "cortina" circumvention  
                         to all P5IOC2/
                         INCORROUT IB B170E560 during Memory  
                         Region allocation
                         INCORROUT IB B700F103 During HCA Free  
                         Resource
                         CCM-FFY: system checkstops post repair  
                         due to processor
                         IPL: Slave FSP didn't get psi link  
                         assigned
                         latest js22 scripts no longer work  
                         through UX/MCP insta
                         P6FIELD_FHA:  Bloomberg system crashed  
                         and should have 
                         Implement changes to allow second non-mem  
                          presv re-ipl
                         Hardware Circumvention:  Galaxy1 RC QP  
                         Checkstop Workaround
                         Unsupported svpdMFGtool option used by  
                         mnfgclean -acvpd
                         pPET: HMC lost access to LPARs - Vio  
                         locking issue
                         HEA Lport Config Result in SRC B700F103  
                         P6FIELD: IPL-SRCB6000103-UNPRED  
                         HYPERVISOR HEAP CORRUPTION D
You may have gotten burned by the "if it ain't broke don't fix it 
mentality".  Apparently IBM issued a fix for this issue but you don't have 
it.  And now you've activated the situation that duplicates the problem. I 
believe that MH* ptfs are firmware markers.
Here's some more hits:
http://www14.software.ibm.com/webapp/set2/firmware/gjsn?mode=30&page=01SF240_299_201.html
http://download.boulder.ibm.com/ibmdl/pub/software/server/firmware/01SF240_358_201.html
http://download.boulder.ibm.com/ibmdl/pub/software/server/firmware/01EL320_083_045.html
You really need to find out why the HMC will not talk to the i.
Rob Berendt
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