Re: Re: [cgl_specs] Use case - Live patching

Brian F. G. Bidulock wrote:

>Corey,
>
>On Mon, 28 Mar 2005, Corey Minyard wrote:
>
>  
>
>>Brian F. G. Bidulock wrote:
>>
>>    
>>
>>>Timothy,
>>>
>>>We would stop one of the redundant processors, patch it, and then
>>>bring it back up and switch over from the online side.  A bounce
>>>in the middle could be problematic but that is usually true of all
>>>planned outages.  I don't know of any telco switches that actually
>>>continue running call processing on the same processor that is being
>>>patched.
>>> 
>>>
>>>      
>>>
>>I do.  Nortel switches work this way, for instance.
>>    
>>
>
>So you patch your DMS's with both sides synced.  That would be a foolish
>practice...
>  
>
Why?  It never caused a problem in the field.  Of course, your patching 
system has to be set up to handle this properly, but it can be done.

-Corey