[cisco-voip] MCS-7845-I3 server locks up after IMM is restarted

[Mike King]

IMM is Intergrated Management Module.

It's IBM's version of HP's ILO (Intergrated Lights Out)

Basically it's a board inside the server, that has it's own network
connection.  You can remotely manage the server (even KVM Keyboard Video
Mouse) from the network. If the server is off, you can even power it on from
this management interface.

I think the bug you've listed is unrelated to what your describing.

On Tue, Sep 28, 2010 at 1:51 PM, Ahmed Elnagar
<ahmed_elnagar at rayacorp.com>wrote:

>  I know it could be a silly questions but Anyone have any idea what is the
> IMM module is?
>
> I have the same symptoms for the below bug when I restart the Publisher
> server from SSH access
>
>
>
> Symptom:
>
>
>
> CUCM Server becomes unresponsive after restarting the IMM module.
>
>
>
> Conditions:
>
>
>
> MCS-7845-I3 type servers if the module is restarted while the OS is
> operational on rare occurrence,the server will become unresponsive. It has
> been observed under this condition existing SSH sessions may remain
> connected for a period of time however no new connections will be made. CPU
> will be spiking to 100% where khubd or kipmi0 processes will be the top CPU
> consumers. The only way to recover a server in this unresponsive condition
> is to reboot the server which can be done via IMM.
>
>
>
> Workaround:
>
> For a permanent fix, perform a UCM upgrade to pick the up fix:
>
> 1) For UCM 6.x, upgrade to 6.1(5) and higher
>
> 2) For UCM 7.x, upgrade to 7.1(5) and higher
>
>
>
> For a temporary workaroud:
>
> 1. Perform IMM configuration before installing UCM when customers receive
> their 7835/45-I3 servers. For example, changing HTTP to HTTPS, or perform
> any necessary FW update through IMM.
>
> 2. If reseting IMM is required after UCM is installed, DO NOT restart IMM
> module while UCM is operational. Shut down UCM first before restarting the
> IMM module.
>
>
>
>   Best Regards;
>
>   Ahmed Elnagar
>
>   Senior Network PS Engineer
>
>
>
> [image: untitled]
>
>   RAYA Building El Motamiez District, 6th of October, Egypt
>
>
>
>   Mob: +2019-0016211
>
>   Phone: +202 3827 6000 Ext.2475
>
>   Website: www.rayacorp.com
>
>   E-mail: ahmed_elnagar at rayacorp.com
>
>   CCIE#24697 (Voice)
>
>  [image: ccie_voice_large.gif]
>
>
>
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