This procedure can be performed by a customer while the server is running.
Replace a CMIOU when the replacement CMIOU is available.
Complete the following steps before you unseat or remove a CMIOU.
Caution - This procedure requires that you handle components that are sensitive to electrostatic discharge. This discharge can cause server components to fail. When you unpack the replacement part, open the package on a grounded antistatic mat. Always use an antistatic wrist strap for hardware replacements.
-> show /System/DCUs/DCU_x/CMIOU_y power_state
-> show /System/DCUs/DCU_x host_assigned /System/DCUs/DCU_x Properties: host_assigned = HOSTx
Connect to the host console in a separate terminal session before stopping the host to ensure that you can view all messages reported by the system.
-> start /Servers/PDomains/PDomain_x/HOST/console Are you sure you want to start /Servers/PDomains/PDomain_x/HOST/console (y/n) ? y Starting /Servers/PDomains/PDomain_x/HOST/console ... ->
Stop the host to which the CMIOU is assigned.
-> stop /Servers/PDomains/PDomain_x/HOST Are you sure you want to stop /Servers/PDomains/PDomain_x/HOST/(y/n)? y Stopping /Servers/PDomains/PDomain_x/HOST/ ->
-> show /Servers/PDomains/PDomain_x/HOST status /Servers/PDomains/PDomain_x/HOST Properties: status = Powered Off ->
-> set /System/DCUs/DCU_x/CMIOU_y action=prepare_to_remove
SPARC M8-8 or SPARC M7-8 (with two PDomains): x is 0 and y is 0–3, or x is 1 and y is 4–7
SPARC M8-8 or SPARC M7-8 (with one PDomain): x is 0 and y is 0–7
SPARC M7-16: x is 0-3 and y is 0–15
-> show /System/DCUs/DCU_x/CMIOU_y health
When the CMIOU is ready to remove, this command returns Offline, and the blue Ready to Remove LED lights.
See Prevent ESD Damage.