DIMMs follow the naming convention /SYS/CMIOUx/CM/CMP/BOByw/CHz/DIMM with the following values:
SPARC M8-8, where x is 0 to 7
SPARC M7-8, where x is 0 to 7
SPARC M7-16, where x is 0 to 15
Buffer chip (BOB) number (where y is 0 to 3 and w is 0 or 1)
DDR channel (CH) number (where z is 0 or 1)
This information is useful when servicing DIMMs and when assessing error messages. For example, the following output identifies faulty DIMMs on two different SPARC M7 CMIOUs.
2013-09-06/17:16:20 ereport.hc.dev_fault@/SYS/CMIOU1/CM/CMP/BOB11/CH1/DIMM 2013-09-06/17:16:20 ereport.hc.dev_fault@/SYS/CMIOU3/CM/CMP/BOB01/CH0/DIMM