9 mixed device environments and migration, Mixed device environments and migration – IBM DS8000 User Manual

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DS8000 Series: Concepts and Architecture

# 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

11.9 Mixed 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 11-2 shows 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.

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