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- Sun Proprietary/Confidential: Internal Use Only -
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                            FIELD INFORMATION NOTICE
                  (For Authorized Distribution by SunService)

FIN #: I0768-1

Create Date: Feb/06/01

Keywords: 

Sun Cluster 2.X software does not support the hardware DR features of Sun Enterprise Servers

SunAlert: No

Top FIN/FCO Report: No

Products Reference: DR features on Sun Enterprise Servers

Product Category: Server / SW Admin

Product Affected: 

Systems Affected  
----------------
Mkt_ID   Platform   Model   Description              Serial Number
------   --------   -----   -----------------------  -------------
  -      E3000      ALL     Ultra Enterprise 3000        -  
  -      E3500      ALL     Ultra Enterprise 3500        -
  -      E4000      ALL     Ultra Enterprise 4000        -  
  -      E4500      ALL     Ultra Enterprise 4500        -
  -      E5000      ALL     Ultra Enterprise 5000        -  
  -      E5500      ALL     Ultra Enterprise 5500        -
  -      E6000      ALL     Ultra Enterprise 6000        -  
  -      E6500      ALL     Ultra Enterprise 6500        -


X-Options Affected
------------------
Mkt_ID   Platform    Model   Description                  Serial Number
------   --------    -----   -----------                  -------------
X1073	    -          -     SC 2.1 SCI/SBUS BOARD              -
X1252       -          -     PDB CLUSTER FOUND PKG EXX00        -
X1303       -          -     PDB CFP ENTERPRISE EXX00           -

Parts Affected: 

Part Number   Description                               Model
-----------   -----------                               -----
300-1260-0X   Power/Cooling Module 300W                   -
300-1301-03   Power Supply 184W                           -
300-1444-0X   Power/Cooling Module 300W SF+               -
370-2345-0X   SCI Communications Adapter                  -
370-2868-0X   SCI Communications Adapter                  -

References: 

BugId: 4245807 - Replacement of redundant power supply causes SCI link 
                 failure.
  
       4283290 - SCI goes to link down when inserting power supply.

ESC:   520967 - Replacement of redundant power supply causes SCI link failure. 
       523082 - SCI goes to link down when inserting power supply.

DOC:   805-6512-05: Sun Enterprise Cluster Hardware Service Manual.

URL: http://suncluster.eng/products/SC2.2/fcs_docs/hardware_service/805-6512.pdf

Issue Description: 

When replacing a power supply or other components in a Sun Enterprise
Exx00 server which is part of a Sun Cluster 2.x configuration, it is
important to follow the proper maintenance procedure.  Failure to do so
may result in the SCI Adaptor board resetting, and the system becoming
disconnected from the cluster.  This can disrupt availability for
customer applications.

Sun Enterprise servers support Dynamic Reconfiguration, or
hot-swapping, of defective power supplies.  This works well unless a
system is part of a Sun Cluster configuration.  If a new power supply
is inserted while a system is still attached to the cluster, the SCI
Adaptor board might reset, dropping the system from the cluster.

A typical error message appears on the console as:

   NOTICE: SCI Adapter 0 : The SCI link is not operational int-csr=0x2000000
           cur-csr=0x40419c0 cur-csr-masked=0x4000000
   NOTICE: SCI Adapter 0 : Reset, Sync or CRC Error
   NOTICE: SCI Adapter 0 : Resetting SCI link
   NOTICE: ID[SUNWcluster.sma.smak.4001]: SCI Adapter 0: Card not operational  
   NOTICE: ID[SUNWcluster.sma.smak.4051]: SCI Adapter 0: Link not operational  

This problem may impact any Sun Enterprise Server (E3x00, E4x00, E5x00
and E6x00) with an SCI SBus Communications card AND Sun Cluster 2.x
software.

Use the following commands to identify whether the system is configured 
with the above combination which may experience this problem.
   
   . Option 1: /usr/platform/sun4u/sbin/prtdiag -v
          
   . Option 2: /opt/SUNWsma/bin/get_ci_status
   
Sun Cluster 2.x software was not designed to support the hardware DR
features of Sun Enterprise servers.  This was decided because the
cluster software already supports Node Level Failover and supporting
Sun Enterprise hardware DR was not necessary.  This could also have
caused other realtime software problems. 
  
The proper procedure for replacing defective server components in one
of these affected system is provided in the Sun Enterprise Cluster System
Hardware Service Manual.  Briefly, this process involves first taking
the affected node out of the cluster, and powering the unit down before
attempting to service the unit.  After the unit has been serviced,
power up the unit and re-introduce the node back into the cluster.

Implementation: 

---
        |   |   MANDATORY (Fully Proactive)
         ---    
         
  
         ---
        |   |   CONTROLLED PROACTIVE (per Sun Geo Plan) 
         --- 
         
                                
         ---
        | X |   REACTIVE (As Required)
         ---

Corrective Action: 

The following recommendation is provided as a guideline for authorized
Enterprise Services Field Representatives who may encounter the above
mentioned problem.
    
Please be aware of and follow the cluster hardware maintenance
procedures as described in Chapters 2, 3 and 9 of the Sun Enterprise
Cluster System Hardware Service Manual, P/N 805-6512-05.

   http://suncluster.eng/products/SC2.2/fcs_docs/hardware_service/805-6512.pdf
	 
In order to replace server components, please adhere to the following 
procedure:

  1. System administrator switches over the data services to another node
     in the cluster and removes the affected node from the cluster.

  2. Perform the hardware procedure to replace the defective component.  This 
     may involve powering down the system, depending on whether or not a 
     component (such as a power supply) is hot-swappable.  See the manual 
     for guidelines for specific components.
    
  3. System administrator re-introduces the node to the cluster and performs
     any necessary software tasks.

Comments: 

None 

============================================================================

Implementation Footnote: 

i)   In case of MANDATORY FINs, Enterprise Services will attempt to    
     contact all affected customers to recommend implementation of 
     the FIN. 
   
ii)  For CONTROLLED PROACTIVE FINs, Enterprise Services mission critical    
     support teams will recommend implementation of the FIN  (to their  
     respective accounts), at the convenience of the customer. 

iii) For REACTIVE FINs, Enterprise Services will implement the FIN as
     the need arises.
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