HiCommand Dynamic Link Manager User's Guide (for Windows(R))

1.1 What is HDLM?

The widespread use of data warehousing and increasing use of multimedia data have increased the need for high-speed processing of large volumes of data on networks. To satisfy this need, networks dedicated to data transfer, such as a SAN, are now being used to provide access to storage subsystems.

The HDLM software manages access paths to storage subsystems. HDLM provides functionality for distributing the load across paths and switching to another path if there is a failure in a path being used, thus improving system availability and reliability.

Figure 1-1 Connections between hosts and storage subsystems illustrates the connections between hosts and storage subsystems. A server on which HDLM is installed is called a host.

Figure 1-1 Connections between hosts and storage subsystems

HDLM supports the following storage subsystems.

• Thunder 9200
• Lightning 9900 Series
• Thunder 9500V Series
• Lightning 9900V Series
• TagmaStore AMS/WMS series
• TagmaStore USP
• Universal Storage Platform V
• EMC DMX series
• EMC CX series
• HP EVA series

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