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1 format, 2 parameters – HP Hitachi Dynamic Link Manager Software User Manual

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7. Utility Reference

326

7.7 dlmodmset Utility for Setting the HDLM Execution Environment

ODM

This utility sets ODM to define HDLM operations.

7.7.1 Format

/usr/DynamicLinkManager/bin/dlmodmset

{{-r {on | off}

| -i {on | off }

| -v {on | off }} [-s]

| -h

| -o }

7.7.2 Parameters

-r { on | off }

Enables or disables the LUN RESET option.

on

: Enable

off

: Disable

The default is

off

.

To use GPFS, specify

on

.

You do not need to reconfigure the hdisk or restart the host when you change this

parameter.

-i { on | off }

Prevents I/O on the Online(E) path.

on

: Prevents I/O on the Online(E) path.

off

: Allows I/O on the Online(E) path

The default is off.
When an error (such as one that might occur in a LVM mirror configuration) is

detected and I/O access for a path in the Online(E) status continues, detection of

errors will continue. When this parameter is set to

on

, I/O access is suppressed

until troubleshooting measures are taken. This can shorten the time needed to deal

with the problem.
You do not need to reconfigure the hdisk or restart the host when you change this