FC  5074,  FC  5079  -  Disk  unit  (dedicated) 
For  use  by  authorized  service  providers. 
Use  this  procedure  to  remove  or  replace  the  disk  unit  (dedicated)  in  an  FC  5074  or  FC  5079. 
Attention:  The  disk  unit  is  sensitive  to  electrostatic  discharge  (see  Work  with  electrostatic 
discharge-sensitive  parts). 
To  remove  or  replace  the  disk  unit  (dedicated): 
1.  Determine  if  the  system  has  logical  partitions.  Go  to  Determine  if  the  system  has  logical  partitions 
before  continuing  with  this  procedure. 
2.  Were  you  directed  here  from  the  Recovery  procedures  topic? 
v  No:  Go  to  Recovery  procedures. 
v  Yes:  After  you  have  determined  the  location  of  the  disk  unit  to  replace,  remove  the  front  covers  for 
access.  See  FC  5074,  FC  5079,  FC  5094,  FC  5294,  FC  9079,  FC  9094  -  Covers.
3.
  Remove  the  EMC  access  plate  that  is  over  the  location  of  the  disk  unit  that  you  are  removing.  For 
location  information,  see  Locations  —  FC  5074  I/O  tower. 
4.  Remove  the  disk  unit  by  performing  the  following: 
a.  Power  off  the  system  (see  Power  on/off  the  system  and  logical  partitions). 
b.  Disconnect  the  power  cord. 
c.  Pinch  the  two  surfaces  of  the  latching  mechanism  together  and  pull  the  handle  towards  you  to 
release  the  disk  unit  from  the  slot. 
d.  Remove  the  unit  from  the  tower.
 
 
5.  Are  you  finished  with  the  repair? 
v  No:  Continue  with  the  next  step. 
 
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