Position  Possible  Failing  Item  DSA  (BBBBCcbb)  Unit  Address 
D02  Disk  unit  xxxx-10-00  1z0200FF  (where  z  is  0,  1 
or  2) 
D03  Disk  unit  xxxx-10-00  1z0300FF  (where  z  is  0,  1 
or  2) 
D04  Disk  unit  xxxx-10-00  1z0400FF  (where  z  is  0,  1 
or  2) 
D05  Disk  unit  xxxx-10-00  1z0E00FF  (where  z  is  0,  1 
or  2) 
D06  Disk  unit  xxxx-10-00  1z0F00FF  (where  z  is  0,  1 
or  2)
 
Addresses  —  FC  5078,  FC  0578  Expansion  I/O  Unit 
For  use  by  authorized  service  providers. 
Use  the  address  to  find  the  location.  Then  go  to  “Locations  —  FC  5078,  0578  Expansion  I/O  Unit”  on  page 
301  to  find  additional  information. 
Table  1.  IOP,  IOA,  and  device  address  information  for  FC  5078,  FC  0578  Expansion  I/O  Unit 
 
Position  Possible  Failing  Item  DSA  (BBBBCcbb)  Unit  Address 
    Note:  IOA  and  device 
DSA’s  will  not  follow  the 
rules  below  if  the  IOA  is 
manually  reassigned  after 
IPL. 
 
C01  IOP  xxxx-10-00  FFFFFFFF 
C02  Storage  IOA  xxxx-10-00  2FFFFFFF 
C02  Communication,  workstation 
IOA 
xxxx-10-00  E2FFFFFF 
C03  IOP  xxxx-14-00  FFFFFFFF 
C03  Storage  IOA  xxxx-10-00  4FFFFFFF 
C03  Communication,  workstation 
IOA 
xxxx-10-00  E4FFFFFF 
C04  Storage  IOA  The  IOA  has  the  same  DSA 
as  the  first  IOP  found  in  the 
following  list:  C03,  C01. 
6FFFFFFF 
C04  Communication,  workstation 
IOA 
The  IOA  has  the  same  DSA 
as  the  first  IOP  found  in  the 
following  list:  C03,  C01. 
E6FFFFFF 
C05  (IXS  capable  position)  IOP  yyyy-10-00  FFFFFFFF 
C06  (empty  if  IXS  in  C05)  Storage  IOA  yyyy-10-00  2FFFFFFF 
C06  (empty  if  IXS  in  C05)  Communication,  workstation 
IOA 
yyyy-10-00  E2FFFFFF 
C07  IOP  yyyy-13-00  FFFFFFFF 
C07  Storage  IOA  yyyy-10-00  3FFFFFFF 
C07  Communication,  workstation 
IOA 
yyyy-10-00  E3FFFFFF 
C07  IXS  attached  IOA  yyyy-10-00  E003FFFF 
 
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