Seek feedback: BMC console and debug info

[Zhenfei Tai]

Hi,

We have worked with our vendor on a system that provides console and debug
information, which can be useful in times of debugging BMC issues.

On a high level, we use obmc-console
<https://github.com/openbmc/obmc-console> and phosphor-debug-collector
<https://github.com/openbmc/phosphor-debug-collector> to collect data.

   - obmc-console: We collect console inputs from the *host* and save to
   local log files (max 8 files of 1 MB size with rotation.)
   - phosphor-debug-collector: We run this process on the BMC with no
   modification.

For the interface, the data is exposed via bmcweb where there are a pair of
URIs for console inputs and debug collector respectively.
e.g.

   - /redfish/v1/Systems/system/LogServices/Console -- Enable/disable
   console inputs data collection.
   - /redfish/v1/Systems/system/LogServices/ConsoleDownload -- Download the
   log files in a zipped file.

It will be great if we can get some feedback on whether the community finds
such a system useful and advice to improve the design.

Thanks,
Zhenfei
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