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Chapter 2. Copy Services architecture 11
2.2 How the new structure of Copy Services works
With the exception of System z commands (see “System z communication path for Copy
Services” on page 13), communication to a DS6000 or DS8000 needs an available DS SMC
or DS HMC. See Figure 2-2.
Figure 2-2 Network Interface communication structure
DS8000 management structure
In Figure 2-2, you can see that:
The client uses either the DS CLI or a Web browser GUI to issue commands to the
Network Interface Server running on the DS HMC.
The Network Interface Server software on the HMC communicates with the Client.
The Network Interface Server software communicates with the Network Interface Node,
which resides on each server of an SFI. From this point, the network interface talks to the
microcode, which operates the DS8000.
1750 DS6000 management structure
In Figure 2-2, you can see that:
The client uses either the DS CLI or a Web browser GUI to issue commands to the
Network Interface Server running on the DS SMC.
The DS Network Interface Server software runs on the DS SMC. This is what the client
client communicates with.
DS SMC
Client
DS CLI or
Web browser
DS HMC
Network Interface
Server
Client
DS CLI or
Web browser
Client
DS CLI or
Web browser
Network Interface
Server
ESS800
Processor
complex2
Processor
complex1
DS8000
Processor
complex2
Processor
complex1
Micro
code
DS6000
Controller 0 Controller 1
Network
Interface
Node
Micro
code
Micro
code
Micro
code
SFISFI
Network
Interface
Node
Network
Interface
Node
Network
Interface
Node
Network
Interface
Node