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IOP/CMDU Reset 2

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dawg2

Technical User
Mar 30, 2004
160
I have an option 61c release 22 issue 16. I recently sent questions regarding Ring Generator card dropping. I wanted to say thank to all the information and answers. Well that seem to have stopped I replaced 1 of the RG and removed a bad analog card. I also replaced the system monitoring cards.
But I am still getting CMDU 1 disabled (No access to HDK)
RDUN disabled.
Do you think that a reset on the IOP/CMDU card could clear this up? The cores do switch.
If so could you please help by giving me the correct commands on how to accomplish. I am sure I would have to shut down my switch so on the weekend if I had to do this would I need to switch to the 0 shelf before shutting down?
Any suggestions and commands would ne greatly appreciated.
I hoping that I will not have to buy any more parts because my boss (IT manager would love to shut down and go Shoretel.

Thank you to everyone that inputs on this forum I have learned a lot from you all.
 
Try this if you are up to it

Reseating the IODU/C in a redundant system

Plug laptop with modem cable in J25 of incative core and open Procom

Set the MAINT/NORM switch on the CP card to MAINT on the “active” Core.

Set the ENB/DIS switch on all CNI cards to DIS on the “inactive” Core.

Perform the following three steps in uninterrupted sequence:
a press and hold the MAN RST button on the CP card in the “inactive” Core.
b set the MAINT/NORM switch on the CP card in the inactive Core to MAINT
c release the MAN RST button.
Once inactive core has booted, place MAINT/NORM switch to NORM

An “HWI534” message from the CPSI “J25” ACTIVE SIDE or SDI port indicates the start of
memory synchronization. Within 10 minutes, an HWI533 message on the
inactive Core CPSI or SDI TTY indicates the memory synchronization is
taking place. Wait until the memory synchronization is complete.


Synchronize the disk drives:

LD 137 to load the program enter “SYNC” to synchronize the drives.

Once 100% complete issue DATA RDUN sector mismatch should now be cleared.

In the inactive Core, enable the NT6D65 CNI cards by setting the
ENB/DIS faceplate switches to ENB.

Switch the NORM/MAINT switch on the active CP card to NORM.



Thanks,

Buddy

Linked in Profile
 
That "No access to HDK" could be several things... but no, you don't necessarily need to shut down your PBX.

At a very high level, here's what I would do:

1) Make sure the CPU with the working CMDU is active
2) Put the active and standby core in maintenance
3) Disable the inactive core's CNI's
(This puts your switch in SPLIT mode - call processing is now locked to the active core)
Now, you can do whatever you want to the CPU / CMDU / CNI that is inactive, without affecting call processing - in the perfect world, that is.
At this point, the inactive core should have sysloaded - however, it won't load if the CMDU is flaked out
4) Plug into J25 of the inactive core and log in; it will not actually affect phone operation
5) Stat the CMDU, see how it responds
6) If it still shows bad, disable it and reseat it - you may (likely) get a free INI or sysload on that inactive side
7) Check it again after you log back in to the inactive core when it comes back up

If at that point you still have a problem, I'd engage a vendor. Possible hardware issue. You could also try reloading the software but if you truly have a hardware issue, it won't help.

To back out of split mode, if the problem resolves, hit the RESET button on inactive core. As soon as the inactive core says SYS700 (almost immediately), make that CPU NORM and let it finish booting.

Your active core will then eventually tell you that it is synchronizing memories. It will then tell you its complete, maybe 10-15 minutes later. Once that's done, make the ACTIVE core and INACTIVE CNIs NORM / ENBL, and then go into LD 137 and stat your CMDU's. RDUN will likely be disabled, do a SYNC and then ENL RDUN.

-Matthew

Matthew - Technical Support Engineer
 
Thank you for you responses. I am going to try to do this over the weekend. I have a question. Just to comfirm with you the active core has the least lights illuminated and the inactive core has the most lights illuminated. Is that a correct statement?
If CMDU 1 is the active core for Saturday(the day I plan on doing this), Can I push to activate CMDU 0 to be active (so I can do the magic you have told me about)? If so, can you please explain how to do this? Any and all information is greatly appreciated. Command line would be a great also.

I know that you said the we should lose call routing but I am going to have to let them know I doing maintenance and possible down time. What would be a good estimate of time to say?

Thank you so much for all your help and assistance.
 
to see waht cpu and what cmdu is active:


ld 135
CCED000

.stat cpu
cp 1 15 PASS NORMAL ENBL

cp simm/bank stat
1 0/0 ENBL
1 0/1 ENBL
1 1/0 ENBL
1 1/1 ENBL


cp 0 15 PASS NORMAL STDBY

cp simm/bank stat
0 0/0 ENBL
0 0/1 ENBL
0 1/0 ENBL
0 1/1 ENBL
.****
>


>ld 137
CIOD000
.stat
IOP 0 ENABLED (STANDBY: S/W STATUS) IODUC
IOP 1 ENABLED (ACTIVE) IODUC
CMDU 0 ENABLED (STANDBY)
CMDU 1 ENABLED (ACTIVE)
RDUN ENABLED
ELNK ENABLED
SDEV 1 OK (KC VALID)

in ld 135 to swap cores type SCPU and hit enter


Thanks,

Buddy

Linked in Profile
 
Buddy thank for the information I wanted to post to was I get in ld 137 because this is everyday. That is why I am hoping these instructions will make work.
>ld 137
CIOD000
.stat

IOP 0 ENABLED (ACTIVE)
IOP 1 ENABLED (STANDBY: S/W STATUS)
CMDU 0 ENABLED (ACTIVE)
CMDU 1 DISABLED (No Access to HDK)
RDUN DISABLED
ELNK ENABLED

This is what I am trying to fix.

I know the cores switch on the daily bases. But CMDU 1 and RDUN do not show enabled. Just want to make sure that we are on the correct path. I hope I am not repeating myself.

Thanks Susan
 
You're on the right path, I'm guessing that your cores (LD 135 STAT CPU) are on 0 also; so you're going to lock core 0 in maintenance as the active core, etc.

You may want to engage a vendor for this, it can be a tricky procedure and easy to knock out call processing.

-Matthew

Matthew - Technical Support Engineer
 
Yes ..
>ld 137
CIOD000
.stat

IOP 0 ENABLED (ACTIVE)
IOP 1 ENABLED (STANDBY: S/W STATUS)
CMDU 0 ENABLED (ACTIVE)
CMDU 1 DISABLED (No Access to HDK)
RDUN DISABLED
ELNK ENABLED

I have had a vendor and he looked into switch and told me to look at maintenace manuals. He suggested these things and I will have him on stand by I hope, but I think that he is trying to save me cost.
 
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