SSA Multi-Initiator/RAID EL MCA Adapter
Type 4-M #6219 - Fremont


            FRU          NOT FRU
          84H9706  <---- 25L5817
                                          _
    _______________________________________|
   | |                                     |-loop B port 2   9-position
   | | FRU Base 84H9706 #6219              |------ Green light
   | | Cache Option Card 74G7719 #6222     | -loop B port 1     female
   | |                                     |
   | | FFC E07                             |-loop A port 2    connector
   | |                                     |------ Green light
   | | DRAM 16MB   89H5651 Qt:2            |-loop a port 1
   |_|__________                           |
                ||||||||||| |||||||||   |__|
                                           |

Specs:

  • Not mandatory to configured drives as RAID array.
  • From 3 to 16 drives per RAID Array.
  • Busmaster: Yes
  • Data transfer rate: 20MB/s per loop
  • Loops: 2
  • Disks per loop: 48
  • Max Adapters/Loop: 8 (Note 1)
  • Adapter Compatibility: 4M, 4N and 4P (Note 2)
  • RAID support: RAID 5
  • Hot Spare: Yes
  • Fast Write Cache: 4MB (Note 3)
  • RAID/Spares Span Loops: Yes.
  • Boot Support: Non-RAID only.
  • Dump tool: Required Hot Spare

  • Links to see/download current level of fileset:

  • Adapters:
    devices.mca.8f97.*

  • Disks:
    devices.ssa.disk.rte.*
    devices.ssa.IBM_raid.rte.*

  • Microcode:
    Adapter, disks, spare tool and AIX

  • Doc:
    Install, technical & MIM

  • Search:
    Any other search on Boulder
    Dave Adams Web Site
  • 
    Note 1: If more than 2 adapters are connected, RAID and Fast-Write Cache
            cannot be used.
    
         2) Two adapters per loop with RAID and non Fast Write Cache,
            Eight adapters per loop non-RAID and non Fast Write Cache.
    
         3) Members of a RAID array must be on the same loop.
            If Hot Spare is enabled for the array, the spare disk must be on
            the same loop as the array.
    
    
                                     GREEN LIGHT
    
               OFF  Both SSA connectors are inactive. If disk drive modules
                    or other SSA adapters are connected to these connectors,
                    either those modules or adapters are failing, or their
                    SSA links are not active.
    
                ON  Both SSA link are active (normal operating condition).
    
        SLOW FLASH  Only one SSA link is active.
    
    Updated Oct 29 2001 by Bruno Croft