Dell PowerEdge M420 Configuration Manual page 161

At this point, if Unit 2 is powered off or rebooted due to an unexpected
failure, show switch gives the following output:
console#show switch
SW Management
Status
--- ---------
1 Stack Member
2 Unassigned
3 Mgmt Switch
4 Stack Member
When the failed unit resumes normal operation, the previous configuration
that exists for that unit is reapplied by the Master unit.
To permanently remove the unit from the stack, enter into Stack Config
Mode and use the member command, as the following example shows.
console#configure
console(config)#stack
console(config-stack)#no member 2
console(config-stack)#exit
console(config)#exit
console#show switch
SW Management
Status
--- ---------
1 Stack Member
3 Mgmt Switch
4 Stack Member
Standby Preconfig
Status Model ID
------- --------
PCM6348
PCM6348
PCM6348
PCM6348
Standby Preconfig
Status Model ID
------- --------
PCM6348
PCM6348
PCM6348
Plugged- Switch
in Model Status
ID
-------------------
PCM6348 OK
Not Present 0.0.0.0
PCM6348 OK
PCM6348 OK
Plugged- Switch
in Model Status
ID
-------------------
PCM6348 OK
PCM6348 OK
PCM6348 OK
Managing a Switch Stack
Code
Version
--------
9.19.0.2
9.19.0.2
9.19.0.2
Code
Version
--------
9.19.0.2
9.19.0.2
9.19.0.2
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