Using the CLI

The SAN Volume Controller cluster command-line interface (CLI) is a collection of commands that you can use to manage the SAN Volume Controller.

Overview

The CLI commands use the Secure Shell (SSH) connection between the SSH client software on the host system and the SSH server on the SAN Volume Controller cluster.

Before you can use the CLI, you must have already created a cluster.

You must perform the following actions to use the CLI from a client system:

Install and set up SSH client software on each system that you plan to use to access the CLI.
Generate an SSH key pair on each SSH client.
Store the SSH public key for each SSH client on the SAN Volume Controller.
Note: After the first SSH public key is stored, you can add additional SSH public keys using either the SAN Volume Controller Console or the CLI.

You can use the CLI to perform the following functions:

Set up of the cluster, its nodes, and the I/O groups
Analyze error logs
Set up and maintenance of managed disks (MDisk) and MDisk groups
Set up and maintenance of client public SSH keys on the cluster
Set up and maintenance of virtual disks (VDisks)
Set up of logical host objects
Map VDisks to hosts
Navigate from managed hosts to VDisks and to MDisks, and the reverse direction up the chain
Set up and start Copy Services:
- FlashCopy® and FlashCopy consistency groups
- Synchronous Metro Mirror and Metro Mirror consistency groups
- Asynchronous Global Mirror and Global Mirror consistency groups