We recently removed a supervisor from a Nexus 7010 with the command:

out-of-service module 6

2011 Apr  9 16:10:25 TC-N7KCR02 %PLATFORM-2-MOD_PWRDN: Module 6 powered down

MY-N7K01# show module

Mod  Ports  Module-Type                      Model              Status
---  -----  -------------------------------- ------------------ ------------
6    0      Supervisor module-1X             N7K-SUP1           powered-dn

The module was replaced and then we used the:

no poweroff module 6

This brought the module back online.

When we attempted to do the same with module 3 (N7K-M132XP-12)

out-of-service module 3

We got the following message:

"This linecard module cannot be put out of service"

We then used the command:

poweroff module 3

MY-N7K01# sh module

Mod  Ports  Module-Type                      Model              Status
---  -----  -------------------------------- ------------------ ------------
3    32     10 Gbps Ethernet Module          N7K-M132XP-12      powered-dn

Mod  Power-Status  Reason
---  ------------  ---------------------------
3    powered-dn     Configured Power down

Could someone advise when is is appropriate to use the "out-of-service" command and when to use the "power off" command?

What is the difference between these commands?

thanks,

Al