Installing PowerPath

Locate Your License Key

The PowerPath license registration key is on the License Key Card delivered with the PowerPath media kit.

If you are upgrading from an earlier version of PowerPath, you need not reregister; PowerPath will use your old key.

Prepare the Host and Storage System

To prepare the host and storage system:

Verify that your environment meets the requirements in:

Environment and System Requirements section of the EMC PowerPath Release Notes. That section describes minimum hardware and software requirements for the host and supported storage systems.

Chapter 3, PowerPath Configuration Requirements, in the PowerPath Product Guide. That chapter describes the host-storage system interconnection topologies that PowerPath supports.

Set up the SCSI target and LUN or Fibre Channel port and LUN addresses. Refer to the EMC Host Connectivity Guides or Installation Roadmap for FC-Series Storage Systems.

In the /etc/system file, make sure the timeout value is set to 60 seconds. This minimizes path failover time without compromising online storage-system microcode or base code upgrades. The entry must be a hexadecimal number:

set sd: sd_io_time = 0x3C

Use the Solaris format utility to format, partition, and label the unused storage system devices such that each unused device has a partition 2 that occupies the entire device. Do not, however, use or mount these devices before installing PowerPath.

Before You Install

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EMC 300-000-978 REV A03 manual Locate Your License Key, Prepare the Host and Storage System