Nonstop Database, HiRDB Version 9 Disaster Recovery System Configuration and Operation Guide

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8.3.2 Standby-less system switchover (1:1) facility

Set up the following paired logical volume groups on each of the server machines that is configured for standby-less system switchover (1:1):

  1. Pair logical volume groups to be used by the units on the server machines
  2. Pair logical volume groups to be used by the normal BESs of the units in 1 above
  3. Pair logical volume groups to be used by the alternate BESs of the units in 1 above
  4. Pair logical volume groups to be used by the units of the normal BESs associated with the alternate BESs on the server machines

The following figure shows an example of logical volume group setup.

Figure 8-8 Example of logical volume group setup (when the standby-less system switchover (1:1) facility is used)

[Figure]

Pair logical volume group settings in the configuration definition of server machine 1

HRD1_UNT1_USTS
HRD1_bes11_DB
HRD1_bes11_LOG
HRD1_bes11_SPD
HRD1_bes11_SSTS
HRD1_bes12_DB
HRD1_bes12_LOG
HRD1_bes12_SPD
HRD1_bes12_SSTS
 
HRD1_UNT2_USTS
HRD1_bes21_DB
HRD1_bes21_LOG
HRD1_bes21_SPD
HRD1_bes21_SSTS
HRD1_bes22_DB
HRD1_bes22_LOG
HRD1_bes22_SPD
HRD1_bes22_SSTS

Pair logical volume group settings in the configuration definition of server machine 2

HRD1_UNT1_USTS
HRD1_bes11_DB
HRD1_bes11_LOG
HRD1_bes11_SPD
HRD1_bes11_SSTS
HRD1_bes12_DB
HRD1_bes12_LOG
HRD1_bes12_SPD
HRD1_bes12_SSTS
 
HRD1_UNT2_USTS
HRD1_bes21_DB
HRD1_bes21_LOG
HRD1_bes21_SPD
HRD1_bes21_SSTS
HRD1_bes22_DB
HRD1_bes22_LOG
HRD1_bes22_SPD
HRD1_bes22_SSTS