3par node have higher NEMOE firmware

[Cloudcover]

I have a 3par 7400 and node 0 has a higher NEMOE firmware. 
Can we downgrade NODE 0 back to 4.63 using the other node's firmware? 
Are there any risks involved with the downgrade? 
Instructions to downgrade?

------------------------------MCU------------------------------

Node Model Firmware State ResetReason   -------Up Since--------

   0 NEMOE 4.91     ready soft_reset    2024-09-06 05:56:35 PDT

   1 NEMOE 4.63     ready cold_power_on 2022-08-27 11:02:35 PDT

   2 NEMOE 4.63     ready soft_reset    2024-09-05 09:39:24 PDT

   3 NEMOE 4.63     ready soft_reset    2022-08-27 13:20:15 PDT

3par Gurus, PLS ADVISE

Thank you

[veeyarvi]

Hi Cloudcover,

Normally, there wont be any issues with Nodes running with different nemoe versions.

Was there any activity on 6th September? Was this node replaced recently? The nemoe code get upgraded/degraded when it joins the cluster (or during OS upgrade). You can try rebooting this node and may be a manual node rescue can also be tried. 

Could you share the below command output as well?
cli%checkhealth -svc -detail

Regards,
Veeyaarvi

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