Upgrading your system to use the DS CLI

You can upgrade your system to use DS CLI by following the removal and installation procedures for the DS CLI. However, there are considerations that you must evaluate before you make this upgrade.

It is recommended that you upgrade the level of code and then the DS Storage Manager before you upgrade your system to use DS CLI.

The DS CLI is designed to support the following features that exist on the IBM TotalStorage Enterprise Storage Server® (ESS) Models 750 and 800:

A Copy Services domain that is configured as part of the IBM TotalStorage Enterprise Storage Server (ESS) Models 750 and 800.
FlashCopy Version 2 and PPRC Version 2 licenses that are available on the ESS.

However, the DS CLI is not designed to support the CLI scripts that you have previously written for these features. You must modify these scripts or write new ones to accommodate the upgrade.

As part of your upgrade preparation, consider the following tips and questions:

An upgrade requires that you remove the DS CLI and that you reinstall the upgraded DS CLI. This is the most certain way to ensure that you receive a error-free installation. However, this removal and reinstall process can be a concern where you have customized the system profile file. A reinstallation can most likely overwrite your current system profile file.
If you want to keep your current system profile file, perform the following actions:
- Make a copy of your current system profile file and save it in a convenient place.
- Copy the saved system profile file into the DS CLI installation directory after the installation has completed. This allows you to overwrite the system profile file that was installed with the upgraded DS CLI.
Do you plan to add the DS6000 to your network?
If you do, you must install the DS CLI application. This application is used for the configuration, performance, and Copy Services functions. Only the DS CLI can perform Copy Services functions between the ESS and the DS models.
Do you plan to keep the DS6000 separate from your network?
If you do, you cannot communicate with the ESSs in your network, even for Copy Services functions. You can install the DS CLI on your server and it supports the DS6000, but new scripts must be written that support the ESSs.