Command-Line Interface; Basic Setup - IBM V7000 Introduction And Implementation Manual

Command-line interface

IBM Flex System V7000 Storage Node also has a powerful CLI, which offers even more
functions than those provided by the GUI. This section is not intended to be a detailed guide
to the CLI, as that topic is beyond the scope of this publication. The basic configuration of the
IBM Flex System V7000 Storage Node CLI and some example commands are covered.
However, the CLI commands are the same as in the SAN Volume Controller, and in addition,
there are more commands that are available to manage internal storage. If a task completes
in the GUI, the CLI command is always displayed in the details, as shown throughout this
book.
Detailed CLI information for IBM Flex System V7000 Storage Node is available in the
Command-Line Interface User's Guide
Storwize V7000 product, located at the following website:
http://publib.boulder.ibm.com/infocenter/flexsys/information/index.jsp
Implementing the IBM System Storage SAN Volume Controller V6.3, SG24-7933 also has a
great deal of information about using the CLI. The command examples in that book also apply
to IBM Flex System V7000 Storage Node as well.

Basic setup

In the IBM Flex System V7000 Storage Node GUI, authentication is done by using a user
name and a password. The CLI uses a Secure Shell to connect from the host to IBM Flex
System V7000 Storage Node. To access the CLI, either a private and a public key pair, or a
user name and password, are necessary.
The following steps are required to enable CLI access with an SSH session, which would
likely be used with a PuTTY SSH connection that is commonly used for connections and uses
SSH keys:
1. A public key and a private key are generated together as a pair.
2. A public key is uploaded to the IBM Flex System V7000 Storage Node system through the
GUI.
3. A client Secure Shell (SSH) tool must be configured to authenticate with the private key.
4. A secure connection can be established between the client and IBM Flex System V7000
Storage Node.
Secure Shell is the communication vehicle between the management workstation and IBM
Flex System V7000 Storage Node. The SSH client provides a secure environment from which
to connect to a remote machine. It uses the principles of public and private keys for
authentication.
SSH keys are generated by the SSH client software. The SSH keys include a public key,
which is uploaded and maintained by the cluster, and a private key, which is kept private on
the workstation that is running the SSH client. These keys authorize specific users to access
the administration and service functions on the system. Each key pair is associated with a
user-defined ID string that can consist of up to 40 characters. Up to 100 keys can be stored
on the system. New IDs and keys can be added, and unwanted IDs and keys can be deleted.
To use the CLI, an SSH client must be installed on that system, the SSH key pair must be
generated on the client system, and the client's SSH public key must be stored on IBM Flex
System V7000 Storage Node.
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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
. It can be found in the Information Center for the IBM