Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

If you are upgrading, you cannot have a symbolic link from /opt to an unconverted

volume. If you do have a symbolic link to an unconverted volume, the symbolic

link will not function during the upgrade and items in /opt will not be installed.

About configuring ssh or remsh using the Veritas

installer

The installer can configure passwordless secure shell (ssh) or remote shell (remsh)

communications among systems. The installer uses the ssh or remsh daemon that

comes bundled with the operating system. During an installation, you choose the

communication method that you want to use. You then provide the installer with

the superuser passwords for the systems where you plan to install. Note that for

security reasons, the installation program neither stores nor caches these

passwords. The ssh or remsh communication among the systems is removed when

the installation process completes, unless the installation abruptly terminates.

If installation terminated abruptly, use the installation script's -comcleanup

option to remove the ssh or remsh configuration from the systems.

See “Installation script options” on page 370.

In most installation, configuration, upgrade (where necessary), and uninstallation

scenarios, the installer can configure ssh or remsh on the target systems. In the

following scenarios, you need to set up ssh or remsh manually:

■ When the root broker is outside of the cluster that you plan to configure.

■ When you add new nodes to an existing cluster.

■ When the nodes are in a sub-cluster during a phased upgrade.

■ When you perform installer sessions using a response file.

See “About configuring secure shell or remote shell communication modes before

installing products” on page 405.

Setting up shared storage

The following sections describe how to set up the SCSI and the Fibre Channel

devices that the cluster systems share.

For I/O fencing, the data disks must support SCSI-3 persistent reservations. You

need to configure a coordinator disk group that supports SCSI-3 PR and verify

that it works.

See “About planning to configure I/O fencing” on page 88.

Before you install

About configuring ssh or remsh using the Veritas installer