1.1Documentation Overview 
 
 
1. Preface 
The  storage  subsystem  is  a  passive  system  that  can  be  directly  attached  for  data  management  or  for 
expanding the hard disk capacity of connected servers. 
With  2  height  units  (HU),  the  storage  subsystem  satisfies  the  requirements  of  both  compactness  and 
maximum hard disk capacity in 19-inch rack infrastructures. 
 
1.1.  Documentation Overview 
Concept and target groups 
This Service Supplement supplements the information contained in the operating manual. 
 
ATTENTION! 
The activities described in this manual may only be performed by specialist personnel with technical 
training. 
The  installation  and  removal  of  the  hot-plug  components  is  described  in  the  operating  manual 
supplied with the storage subsystem. 
 
Features and technical data of the storage subsystem 
Installation and activation, including: 
–  External connections to the storage subsystem 
–  Operation 
–  Configuration of the storage subsystem 
–  Installation of the rack mounting kit Troubleshooting 
Installation/removal of all hot-plug components, such as: 
–  Hot-plug power supply units 
–  Hot-plug HDD modules 
Replacing components: 
–  Replacing the SAS expander module 
–  Replacing LED displays 
–  Replacing the midplane 
–  Replacing the housing 
Cable overview 
Table 1: Overview of the documentation