SPARC M8 and SPARC M7 Series Servers : Field/Customer Replaceable Unit (FRU/CRU) Replacement Methods

Asset ID:	1-71-1988939.1
Update Date:	2017-10-11
Keywords:

Solution Type Technical Instruction Sure

Solution 1988939.1 : SPARC M8 and SPARC M7 Series Servers : Field/Customer Replaceable Unit (FRU/CRU) Replacement Methods

Applies to:

SPARC M7-16 - Version All Versions and later
SPARC M7-8 - Version All Versions and later
SPARC M8-8 - Version All Versions and later
Information in this document applies to any platform.

Goal

The purpose of this document is to summarize the Field Replaceable Units (FRUs) and Customer Replaceable Units (CRUs) in the SPARC M8 and SPARC M7 Series Servers, and for each component list its type of replacement and if needed an explanatory note. The source of information for this document is the SPARC M8 and SPARC M7 Servers Service Manual. For more details related to servicing the M8 and M7 servers in general, and a specific CRU/FRU in detail, please visit the relevant sections of the SPARC M8 and SPARC M7 Servers Service Manual. This document can be used as a quick reference to find out which service method is to be used, given the system configuration and the CRU/FRU which requires service. If this document causes doubt or confusion, the SPARC M8 and SPARC M7 Servers Service Manual is leading.

To discuss this information further with Oracle experts and industry peers, we encourage you to review, join or start a discussion in the My Oracle Support Community - M Series Servers

Solution

Types of replacement

Field Replaceable Units (FRUs) and Customer Replaceable Units (CRUs) on the SPARC M8-8, M7-8, and M7-16 Servers can be replaced using one of two possible replacement methods:

Cold Replacement :

Each CRU/FRU can be replaced through Cold Service replacement. Cold service replacement involves the entire platform to be powered off, including the removal from AC input power to the platform. If you do not power off the entire platform, then power off the Physical Domain (PDomain) that contains the CRU/FRU. The table below contains a note for each CRU/FRU, showing which other CRUs/FRUs and PDomains are affected by the replacement.

Hot Replacement :

A number of CRUs/FRUs can be replaced through Hot Service replacement. Hot Service CRUs/FRUs can be removed while the PDomain(s) are running. Hot-swappable CRUs/FRUs do not require any preparation prior to servicing, where as Hot-pluggable CRUs/FRUs do require preparation prior to servicing. The method to prepare a CRU/FRU for removal can be different for each FRU. Preparation for removal includes one or more of pushing the Attention (ATTN) button, running software commands on the affected PDomains and running software commands on the active Service Processor (SP) . After physically replacing the CRU/FRU, it must be reconfigured back into its PDomain. The steps to reconfigure the CRU/FRU back into the PDomain include one or more of pushing the Attention (ATTN) button, running software commands on the affected PDomains and running software commands on the active Service Processor (SP). Any special consideration will be listed in a note for each CRU/FRU in the table below.

Before and after the actual hardware intervention

Before the actual CRU/FRU replacement takes places, it is the customer's responsability to take all necessary steps to make the CRU/FRU available for replacement.

What steps have to be taken depends on the chosen CRU/FRU replacement method. Hot CRU/FRU Replacement requires some preparation and sometimes requires one or more PDomains to be stopped, Cold CRU/FRU Replacement requires a lot of preparation and planning, and one of more PDomains need to be stopped.

How much time it takes to actually get to the point where we can start the CRU/FRU replacement, or how much time it takes to stop and start affected PDomains, is dependent on how the M8 or M7 server is divided over the various DCUs, and which DCUs make up which PDomain. Such stop and start times are out-of-scope for this document at this point in time, customers should have a fairly good idea as to how long it takes to stop and start their PDomains. Future version of this document might contain a few examples on PDomain stop and start times, but the best option will always be to rely on customer specific information.

What replacement method is available for this FRU ?

For each CRU/FRU, the document lists the CRU/FRU name, the available replacement methods, and if needed a specific note. If in doubt, please do consult the SPARC M8 and SPARC M7 Servers Service Manual, collaborate in the My Oracle Support Community - M Series Servers or contact Oracle Support.

Component	FRU CRU	Platform	Chassis	Replacement method	Chassis Outage Needed	Notes
CPU, memory, and I/O unit (CMIOU)	FRU	M8-8 / M7-8 / M7-16	CMIOU	Hot-Pluggable	No	The PDomain using the CMIOU, must be stopped before replacing the CMIOU.
16GB/32GB/64GB DIMM	FRU	M8-8 / M7-8 / M7-16	CMIOU	Hot-Pluggable	No	The PDomain using the CMIOU which contains the Dimm, must be stopped before replacing the Dimm.
Service Processor (SP)	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Hot-Pluggable	No	With PDomains running, only Standby SP and SP not servicing a DCU can be replaced.
Service Processor Proxy (SPP)	FRU	M7-16	CMIOU	Hot-Pluggable	No	With PDomains running, only SPP not servicing the respective PDomain or DCU can be replaced.
PCIe IO Card	CRU	M8-8 / M7-8 / M7-16	CMIOU	Hot-Pluggable	No	Turn off both CAR and its PICe IO Card before replacing, using the ATT button or the appropriate hotplug commands.
Power Supply (PS)	CRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Hot-Swappable	No	Do not remove more than one power supply at a time.
Fan Module	CRU	M8-8 / M7-8 / M7-16	CMIOU	Hot-Swappable	No	Do not remove more than one fan module at a time, to avoid system shutdown. At any given time, the CMIOU chassis must have at least seven operating fan modules.
Fan Module	CRU	M7-16	SWU	Hot-Swappable	No	Do not remove more than one fan module at a time, to avoid system shutdown. At any given time, a Switch Unit must have at least five operating fan modules.
Switch Unit (SWU)	FRU	M7-16	SWU	Hot-Pluggable	No	The PDomains must be shut down.
Power distribution electronic circuit breaker (PDECB).	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Hot-Pluggable	No	The PDomains must be shut down. The CMIOU or Switch unit that is installed in front of the failed PDECB must be removed.
embedded USB (eUSB) disks	FRU	M8-8 / M7-8 / M7-16	CMIOU	Hot-Pluggable	No	The PDomain using the CMIOU which contains the eUSB disks must be stopped. The CMIOU where the eUSB disk is installed must be removed.
Fan Cable Assembly	FRU	M8-8 / M7-8 / M7-16	CMIOU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
Front Indicator Panel	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
Front Indicator Panel Cable	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
Power Modules	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
Service Processor Tray (SP tray)	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
SP and SPP battery	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Hot-Pluggable	No	With PDomains running, only Standby SP and SPP not servicing a DCU can be replaced. The respective SP or SPP must be removed.
Power Distribution Unit (PDU)	FRU	M7-16	Rack	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
SP Internal Interconnect assembly	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
Internal Interconnect Assembly	FRU	M8-8 / M7-8 / M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.
External Interconnect Assembly	FRU	M7-16	CMIOU / SWU	Cold	Yes	The PDomains must be shut down. The appropriate PDU circuit breakers must be switched off.

SPARC M8 and SPARC M7 Servers Service Manual - http://docs.oracle.com/cd/E55211_01/html/E55215/index.html

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