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5 position of the hdlm driver and hdisk – HP Hitachi Dynamic Link Manager Software User Manual

Page 36

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2. HDLM Functions

14

2.5 Position of the HDLM Driver and hdisk

The HDLM driver is positioned above the SCSI driver and is an add-in module of

MPIO driver located in the AIX standard hdisk. Each application on the host uses the

hdisk (logical device file) created by HDLM, to access LUs in the storage system.
Figure 2-4: Position of the HDLM Driver and hdisk shows the position of the HDLM

driver and hdisk. The logical device file name can be changed by using the

rendev

command. In this manual, the file name of a default logical device of the OS (hdiskn)

or an hdisk name is used as the logical device file name.

Figure 2-4: Position of the HDLM Driver and hdisk