IBM zEnterprise EC12 Configuration Setup

Channel Subsystem

This chapter presents an overview of the Channel Subsystem.

This chapter includes the following sections:

•Channel subsystem (CSS)

•Logical partitions

•Subchannel sets

•Channels

•Defining multiple CSSs and the third subchannel set

•Activation

 

Remember: This book is third in a series. The first two are IBM zEnterprise EC12 Technical Introduction, SG24-8050, and IBM zEnterprise EC12 Technical Guide, SG24-8049.

1.1 Channel subsystem (CSS)

The channels in the CSS allow the transfer of data between main storage and I/O devices ...