Changing an hdlm management-target device -16, Changing an hdlm management-target device – HP XP Racks User Manual

Page 192

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2

.

Stop all processes and services that are using the device that is to be

deleted.

3

.

Execute the following command to unmount the file system that uses the

device that is to be deleted:

# umount file-system-mount-point

4

.

If the device to be deleted is registered in a volume group, execute the

following command to inactivate the volume group:

# varyoffvg volume-group-name

5

.

Execute the following command to delete the device (or devices):

¢

To delete all devices
# /usr/DynamicLinkManager/bin/dlmrmdev

¢

To delete a specific device
# rmdev -dl hdisk-name

6

.

Execute the following command to check that device deletion was

successful:

# /usr/DynamicLinkManager/bin/dlnkmgr view -path

If you deleted all devices, check that the following message appears:

KAPL01019-W The target path was not found. Operation name = view

If you deleted a specific device, check that the deleted device (hdisk

name) is no longer displayed.

Changing an HDLM Management-Target Device

Note

If you execute the chdev command while a path is in error status, that

path will be deleted. In such a case, first recover from the path error,

then re-execute the cfgmgr command, and finally perform the following

steps:

1

.

Inactivate the volume group used by HDLM.

# varyoffvg volume-group-name

2

.

Execute the chdev command to change attributes.
The following example changes the queue depth and timeout value:

# chdev -l hdisk-name -a queue_depth=8 -a rw_timeout=60

3

.

Inactivate the volume group used by HDLM.

# varyonvg volume-group-name

4-16

HDLM Operation

Hitachi Dynamic Link Manager (for AIX) User Guide

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