IBM DS8000 manual Other multipathing solutions, Ds Cli

15.3 Other multipathing solutions

Some operating systems come with native multipathing software, for example:

￿SUN StorEdge Traffic Manager for Sun Solaris

￿HP PVLinks for HP UX

￿IBM AIX native multipathing (MPIO) (see “IBM AIX” on page 347)

￿IBM OS/400 V5R3 multipath support (see Appendix B, “Using DS8000 with iSeries” on page 373)

In addition there are third party multipathing solutions, such as Veritas DMP, which is part of Veritas Volume Manager.

Most of these solutions are also supported for DS8000 attachment, although the scope may vary. There may be limitations for certain host bus adapters or operating system versions. Always consult the DS8000 Interoperability Matrix for the latest information.

15.4 DS CLI

The DS Command-Line Interface (DS CLI) provides a command set to perform almost all monitoring and configuration tasks on the DS8000. This includes the ability to:

￿Verify and change the storage unit configuration, with some limitations

￿Check the current logical storage and Copy Services configuration

￿Create new logical storage and Copy Services configuration settings

￿Modify or delete logical storage and Copy Services configuration settings

Limitation: Some basic configuration tasks cannot be performed using the DS CLI, such as creating a storage complex or adding a storage unit to a storage complex.

The DS CLI allows you to invoke and manage logical storage configuration tasks and Copy Services functions from an open systems host through batch processes and scripts.

It is part of the DS8000 Licensed Internal Code and is delivered with the Customer Software Packet. It is closely tied to the installed version of code and therefore not available for download. The CLI code must be obtained from the same software bundle as the current microcode update. When DS8000 code updates occur, the DS CLI must also be updated.

The DS CLI is available for most of the supported operating systems. The DS8000 Interoperability Matrix contains a complete list.

There are some pre-requisites for the host system that the DS CLI is running on:

￿Java 1.4.1 or later must be installed.

￿ksh (Korn shell) or bash (Bourne again shell) must be available. Install shield does not support the sh shell.

The DS8000 Command-Line Interface User’s Guide, SC26-7625 contains detailed installation instructions for all supported host operating systems.

The DS CLI can be used in two modes:

￿Single command mode: You invoke the DS CLI program in an operating system shell or command prompt and pass the command it is to execute directly as a parameter. The

Chapter 15. Open systems support and software 325