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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
Command-line interface
The 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 book. 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.
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 book. 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 the IBM Flex System V7000 Storage Node is available in the
Command-Line Interface User’s Guide
which can be found in the Information Center for the
IBM Storwize V7000 product, which can be found at the following address:
Implementing the IBM System Storage SAN Volume Controller V6.3, SG24-7933 also has a
great deal of information about using the CLI, and the command examples in that book also
apply to the IBM Flex System V7000 Storage Node as well.
great deal of information about using the CLI, and the command examples in that book also
apply to the 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 the IBM Flex
System V7000 Storage Node. To access either a private and a public key pair or user name
and password is necessary. The following steps are required to enable CLI access with an
SSH session which would likely be used with a PuTTY SSH connection which is commonly
for connections and uses SSH keys:
name and a password. The CLI uses a Secure Shell to connect from the host to the IBM Flex
System V7000 Storage Node. To access either a private and a public key pair or user name
and password is necessary. The following steps are required to enable CLI access with an
SSH session which would likely be used with a PuTTY SSH connection which is commonly
for connections and uses SSH keys:
��
A public key and a private key are generated together as a pair.
��
A public key is uploaded to the IBM Flex System V7000 Storage Node system through the
GUI.
GUI.
��
A client Secure Shell (SSH) tool must be configured to authenticate with the private key.
��
A secure connection can be established between the client and the IBM Flex System
V7000 Storage Node.
V7000 Storage Node.
Secure Shell is the communication vehicle between the management workstation and the
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.
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 the IBM
Flex System V7000 Storage Node.
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 the IBM
Flex System V7000 Storage Node.
The SSH client used in this book is PuTTY. There is also a PuTTY key generator that can be
used to generate the private and public key pair. The PuTTY client can be downloaded at no
cost at the following address:
used to generate the private and public key pair. The PuTTY client can be downloaded at no
cost at the following address: