Preparing to install or upgrade Storage Foundation with DMP disabled for vSCSI devices in the Virtual I/O client

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Preparing to install or upgrade Storage Foundation with DMP disabled for vSCSI devices in the Virtual I/O client

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See About disabling DMP multi-pathing for vSCSI devices in the Virtual IO Client

Before you install or upgrade Storage Foundation, you can set an environment variable to disable DMP use for the vSCSI devices. Storage Foundation is installed with DMP in pass-through mode. MPIO is enabled for multi-pathing.

Note:

When you upgrade an existing VxVM installation that has DMP enabled, then DMP remains enabled regardless of whether or not the environment variable __VXVM_DMP_VSCSI_ENABLE is set to no.

To disable DMP before installing or upgrading SF in the Virtual I/O Client

  1. Before you install or upgrade VxVM, set the environment variable __VXVM_DMP_VSCSI_ENABLE to no.

    # export __VXVM_DMP_VSCSI_ENABLE=no

    Note:

    The environment variable name __VXVM_DMP_VSCSI_ENABLE begins with two underscore (_) characters.

  2. Install Storage Foundation, as described in the Storage Foundation High Availability Installation Guide

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