IBM DS8000 manual Mixed device environments and migration

#The following command checks the status of the ranks lsrank -dev IBM.2107-9999999

#The following command assigns rank0 (R0) to extent pool 0 (P0) chrank -extpool P0 -dev IBM.2107-9999999 R0

#The following command creates an LCU (LCU 02 will be created) mklcu -dev IBM.2107-9999999 -ss FF02 -qty 1 -id 02

#The following command creates another LCU (LCU 04 will be created) mklcu -dev IBM.2107-9999999 -ss FF04 -qty 1 -id 04

#The following command creates 32 CKD volumes (0200-021F will be created)

#These ckd volumes are on LCU 02

mkckdvol -dev IBM.2107-9999999 -extpool P0 -cap 3339 -name ckd_vol_#h -qty 32 0200

#The following command creates 32 CKD volumes (0400-041F will be created)

#These ckd volumes are on LCU 04

mkckdvol -dev IBM.2107-9999999 -extpool P0 -cap 3339 -name ckd_vol_#h -qty 32 0400

#The following command lists I/O ports to configure. lsioport -dev IBM.2107-9999999

#The following commands set two I/O ports to FICON setioport -topology ficon IBM.2107-9999999/I0010 setioport -topology ficon IBM.2107-9999999/I0011

11.9Mixed device environments and migration

The Copy Services commands within the DS CLI are designed to interface with both the DS6000 and DS8000 series and the ESS 800. They will not work with the ESS F20. The storage management commands within the DS CLI also will not work with ESS 800. This means that customers who currently have a mix of 800s and F20s will have to continue to use the current ESS CLI, but could consider deploying the DS CLI for certain Copy Services functions.

To explain in more detail, for the ESS 800 there are two families of CLI commands. ESS storage management CLI commands are used for storage management and configuration. The ESS Copy Services CLI commands are used to manage and monitor Copy Services relationships (FlashCopy and Remote Mirror and Copy). Currently both kinds of CLI are installed by the same setup file. The DS CLI combines both these functions into one library of commands. Table 11-2shows which CLI should be used based on which hardware is installed in a particular environment.

Table 11-2 Which CLI to use based on what hardware you have installed

ESS F20	ESS 800	DS6000 and 8000	CLI to use
Installed	Not installed	Not installed	Use ESS CLI only.
Installed	Installed	Not installed	Use ESS CLI for most functions. Consider use
			of DS CLI for copy functions on the ESS 800.
Not installed	Installed	Installed	Use DS CLI for all Copy Services. Use a
			combination of ESS CLI and DS CLI for
			storage management.
Not installed	Not installed	Installed	Use DS CLI only.
Installed	Installed	Installed	Use a combination of ESS CLI and DS CLI.

244DS8000 Series: Concepts and Architecture