Sun SPARC Enterprise M9000-32 Server
 
Sun SPARC Enterprise M9000-64 Server
 
Sun SPARC Enterprise M8000 Server
 
Sun SPARC Enterprise M3000 Server
 
Sun SPARC Enterprise M5000 Server
 
Sun SPARC Enterprise M4000 Server
 

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Applies to:

Goal

This document describes the three replacement methods and provides information on which FRUs and CRUs can be replaced using which method(s).  This document should be used to decide which method is best to utilize given the system configuration and the FRU which requires service.

Solution

Description
Field Replaceable Units (FRUs) and Customer Replaceable Units (CRUs) can be replaced on Sun SPARC Enterprise[TM] M3000/M4000/M5000/M8000/M9000 systems using one of three possible replacement methods:

This document is Step 5 of  Document 1002526.1 Sun SPARC Enterprise M3000/M4000/M5000/M8000/M9000: Field Replaceable Unit (FRU) Service Action Plan Reference.

Steps to Follow
Cold Replacement Method requires all domains and the entire platform be shut down and powered off in order to replace the FRU/CRU. Every FRU/CRU in Mx000 platforms can be Cold Replaced, but some must be replaced using this method.

Cold Replacement Method

The components which must be Cold Replaced on M3000 are:

MBU_A           MBU_A_2        DIMM       PCIe       HDDBP

PSU             DVDU           FAN_A      FANBP_B    OPNL

The components which must be Cold Replaced on M4000/M5000 are:

MBU_A           MBU_B          CPUM       MEMB       DIMM

DDC_A           DDC_B          XSCFU      IOU        DDCR

FANBP_A         FANBP_B        FANBP_C    BPU_A      BPU_B

HDDBP           TAPEBP         DVD        DVDBP_A    DVDBP_B

OPNL

The components which must be Cold Replaced on M8000/M9000 are:

XBU_B           CLKU_B         OPNL       SNSU       ACS_A

ACS_B           ACS_C          ACS_D      ACSTPH_A   ACSTPH_B

ACSTPH-C        ACSTPH-D       BP_A       BP_B       PSUBP_A

PSUBP_B         FANBP_A        FANBP_B    FANBP_C    MEDBP

SWBP            RDPF

The following steps are simply a reference to make one aware of what is involved in the Cold Replacement Method process, but the Service Manual is the authoritative resource for the actual process to be followed.

• Shut down all applications (if running) on all domains on platform.

• Shut down all domains.

• Power off the platform.

• Unplug the power cords (Make sure to be at the same potential as the system).

• Initiate FRU replacement.

• Power on the platform and verify FRU replacement is successful.

• Bring domains and applications back online.

Hot Replacement Method

Hot Replacement Method requires that the domain(s) containing the faulty FRU/CRU be shut down in order to replace it. The remainder of the platform can stay in operation during the service period. Fans and PSUs are not part of domains and can therefore be replaced while all domains are running. Special rules apply for these FRUs to guarantee redundancy during the replacement operation, they are described later in this document.

The components which can be Hot Replaced on M3000 are:

FAN_A           HDD          PSU

The components which can be Hot Replaced on M4000/M5000 are:

HDD

The components which can be Hot Replaced on M8000/M9000 are:

CMU             CPUM_A         CPUM_B     DIMM         IOU

PCICS           IOUA           PCIB-EX    XSCFU_B      XSCFU_C

PSU             FAN_A          FAN_B      DDC_A

DVDU            TAPEU

The following steps are simply a reference to make one aware of what is involved in the Hot Replacement Method process, but the Service Manual is the authoritative resource for the actual process to be followed.

• Shut down applications (if running) on domains that contain the FRU.

• Shut down domains that contain the FRU.

• Initiate FRU/CRU replacement.

• Verify FRU/CRU replacement is successful.

• Bring affected domains and applications back online.

Active Replacement Method

Active Replacement Method can only be used on redundantly configured FRUs/CRUs that can be Dynamically Reconfigured (DR) into or out of a domain.  No interruption to domain or platform operations will occur when utilizing this method. Fans and PSUs are not part of domains and can therefore be replaced while all domains are running

The components which can be Active Replaced on M3000 are:

HDD             PSU            FAN_A

The components which can be Active Replaced on M4000/M5000 are:

PCICS           PSU            PCIB-EX    HDD          TAPE

The components which can be Active Replaced on M8000/M9000 are:

CMU             CPUM_A         CPUM_B     DIMM         IOU

HDD             PCICS          IOUA       PCIB-EX      XSCFU_B

XSCFU_C         DVDU           TAPEU      PSU          FAN_A

FAN_B           DDC_A

The following steps are simply a reference to make one aware of what is involved in the Active Replacement Method process, but the Service Manual is the authoritative resource for the actual process to be followed.

• Verify the FRU is redundantly configured in all domains in which this FRU is configured.

• Verify the FRU and all dependent hardware on the FRU (I/O adapters, etc) are inactive.

• Verify that resources are switched to alternate paths (I/O, network, etc) if necessary.  This may include breaking disk mirrors or utilizing multi-pathing software to perform the actions.

• Initiate FRU/CRU replacement utilizing Dynamic Reconfiguration.

• Verify FRU/CRU replacement is successful.

• Verify that any inactivated paths are re-enabled for all affected domains.  This may include syncing disk mirrors or utilizing multi-pathing software to perform the actions.

• Verify that the affected domains and applications are all still online without issues.

FRU List Tables

The information in the table above comes from the Sun  SPARC  Enterprise M4000/M5000 Servers Service Manual, Appendix C.

See Bug 15604747 for details on why the M4000/M5000 systems do not use hot replacement methods for FAN and PSU
Previously Published As 87405

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