Setting the reservation policy, Setting the reservation policy -89 – HP XP Racks User Manual

Page 151

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When a XP series is used:
disk/fcp/HP

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When a Thunder 9500V series, Lightning 9900V series (excluding XP

series), Hitachi USP series (excluding XP series), Universal Storage

Platform V/VM series (excluding XP20000 and XP24000), Hitachi

Virtual Storage Platform, Hitachi AMS2000/AMS/WMS/SMS series, or

HUS100 series is used:
disk/fcp/Hitachi

Method to identify ghost disks

SCSI3

Method to determine if a reserve is held

/usr/DynamicLinkManager/cluster/
dlm_hacmp_gdisk_reserve_check

Method to break a reserve

TARGET

Break reserves in parallel

false

Method to make the disk available

MKDEV

3

.

When you finish specifying the settings, click the OK button.

4

.

From the SMIT window, display the Single Select List window.
Choose the following sequence of menu items to display this window:
Communications Applications and Services, HACMP for AIX,

Extended Configuration, and finally choose Extended Verification

and Synchronization.

Setting the Reservation Policy

If you use PowerHA 7.1, set the reserve_policy attribute to no_reserve. If

you use a version of PowerHA other than PowerHA 7.1, we recommend that

you set the reserve_policy attribute to PR_exclusive. Note that if a virtual

I/O function is applied in order to use PowerHA in a client partition, use the

following procedure to check, in the virtual I/O server partition, the settings

for the reserve_policy attribute of the hdisk. If reserve_policy is set to
PR_exclusive, change its value to no_reserve.

1

.

Check the setting for the reserve_policy attribute of the hdisk.

# lsattr -El hdisk-name -a reserve_policy

reserve_policy PR_exclusive N/A TRUE

Perform the following steps if reserve_policy is set to PR_exclusive:

2

.

Quit all applications that specify and directly access the hdisk whose

attribute is to be changed.

3

.

Execute the following command to unmount the file system used by

HDLM.

Creating an HDLM Environment

3-89

Hitachi Dynamic Link Manager User Guide for AIX®

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