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38 IBM System Storage DS6000 Series: Copy Services with IBM System z
5.1 System z interfaces
In addition to using the DS GUI or the DS CLI, several possible interfaces are available to
System z users for managing DS6000 Copy Services relationships. These are:
TSO
ICKDSF
DFSMSdss
The ANTRQST macro
Native TPF commands (for z/TPF only)
These interfaces have the advantage of not having to issue their commands to the DS6000
SMC. They can instead directly send commands inband over a FICON channel connection
between the DS6000 and the System z operating system. Sending inband commands allows
for a very quick command transfer that does not depend on any additional software stacks.
5.1.1 Operating system alternatives
From an operating system point of view, the alternatives to the DS GUI and DS CLI break out
as follows:
z/OS
– TSO commands
– ICKDSF
–DFSMSdss
– ANTRQST application programming interface (API)
z/VM®:
– ICKDSF
z/VSE™
– ICKDSF
z/TPF
– ICKDSF
– z/TPF itself
5.2 TSO
TSO commands are commonly used in z/OS environments to manage all kinds of operations.
TSO commands can be generated by REXX or CLIST procedures. They can also be
generated from other software tools.
You can issue the TSO commands from procedures that are similar to the scripting approach
in open systems environments.
Note that TSO requires a z/OS system at the recovery site when you recover a z/OS Global
Mirror environment at the remote site.
For a detailed description of TSO commands for managing Copy Services, refer to z/OS
DFSMS Advanced Copy Services, SC35-0428.