An A3500FC is properly cabled to a Sun Server. All appropriate 
software revisions, patches and firmware levels are present.
After the host is rebooted, no connectivity  between the host 
and the array is established. Commands such as "lad" will hang.
The RM6 GUI interface may report "no modules found".

In an effort to troubleshoot, strategies such as probe-fcal-all
and booting to the cdrom are used. OBP diagnostics appear fine, 
however, booting to the cdrom (and to the host) yields the 
following warnings. 

WARNING: /sbus@6,0/SUNW,socal@d,10000/sf@1,0 (sf1):
        SCSI violation -- alpa e0 reports no LUNS

WARNING: /sbus@6,0/SUNW,socal@d,10000/sf@1,0 (sf1):
        target 0x5, unknown device type 20 

WARNING: /sbus@6,0/SUNW,socal@d,10000/sf@0,0 (sf1):
        SCSI violation -- alpa e0 reports no LUNS

WARNING: /sbus@6,0/SUNW,socal@d,10000/sf@0,0 (sf1):
        target 0x5, unknown device type 20                         

The problem is not with hardware but rather with the configuration 
(or DacStore) on the array. As we all know, there must always be
at least one lun on the array. The warning messages are being generated 
because NO luns exist!!! If the array is in this state, there is no
"standard" solution available. Tactics such as power cycling, boot -r, 
or "hardware reset" (info doc 17736) cannot solve. 

The only solution for this problem is with a "tip" session to the 
serial port on the controller. After the tip session is established, 
verify that no luns are present. Commands such as arrayPrintSummary 
and cfgUnitList can verify this for us.  

If this is the case, you can set the array back to factory defaults. 
ALL DATA AND CONFIGURATION IS LOST BY THIS NEXT COMMAND! The 
command needs to be run on each array controller if two exist. 

                      ->sysWipe

This procedure can ONLY be followed by appropriate Sun personnel. Proper
Sun Personnel would be an RSSE (or SSE) with Advanced Sonoma Training
as well as posession of the proper tip cable. Appropriate customer 
engineering and management alerts are required to execute
on this action plan.