2.2.36 Operands related to Real Time SAN Replication

For details about Real Time SAN Replication, see the HiRDB Version 9 Disaster Recovery System Configuration and Operation Guide.

172) pd_rise_use = Y | N
Specifies whether to use Real Time SAN Replication.
Y: Uses Real Time SAN Replication.
N: Does not use Real Time SAN Replication.
If you specify Y for this operand, HiRDB uses TrueCopy, Universal Replicator, and RAID Manager, from the Hitachi disk array system, to manage and control database files and system files.
Relationship to other operands
If you specify Y in this operand, you must also specify the pd_rise_pairvolume_combination operand. If the pd_rise_pairvolume_combination operand is omitted, HiRDB cannot be started.
173) pd_rise_pairvolume_combination = sync | async | hybrid | syssync
Selects a Real Time SAN Replication processing method.
sync: All synchronous method
async: All asynchronous method
hybrid: Hybrid method
syssync: Log-only synchronous method
Conditions
  • Y must be specified in the pd_rise_use operand.
  • HiRDB Disaster Recovery Light Edition is required in order to specify syssync. If you specify syssync without installing HiRDB Disaster Recovery Light Edition, HiRDB cannot be started.
Notes
If you specify syssync when using the inner replica facility, HiRDB cannot be started.
Relationship to other operands
  • If you specify Y in the pd_rise_use operand, you must specify this operand. If this operand is omitted in such a case, HiRDB cannot be started.
  • If you specify sync, hybrid, or syssync, make sure that you also specify the pd_rise_fence_level operand. If the pd_rise_fence_level operand is omitted, HiRDB cannot be started.
174) pd_rise_disaster_mode = normal | alone
Specify this operand if you select the hybrid method for the Real Time SAN Replication processing method. This operand specifies whether to maintain data matching by establishing synchronization between the main site and the remote site.
normal:
Maintains data matching by establishing synchronization between the main site and the remote site.
alone:
Does not establish synchronization between the main site and the remote site, and thus does not maintain data matching. Specify this option when a factor such as a natural disaster makes it impossible to update a remote site by copying data.
Conditions
To specify this operand, all of the following conditions must be satisfied:
  • Y is specified for the pd_rise_use operand.
  • hybrid is specified for the pd_rise_pairvolume_combination operand.
Specification guidelines
This operand is used when a factor such as a natural disaster makes it impossible to update a volume located at a remote site by copying data. Therefore, normally omit this operand or specify normal.
175) pd_rise_fence_level = data | never
Specifies the action to be taken if synchronous copying of data to a volume at the remote site (transferring all or some HiRDB files) fails due to an error when the all synchronous method, hybrid method, or log-only synchronous method has been selected as the Real Time SAN Replication processing method. For details about the action to take if synchronous copying fails, see the HiRDB Version 9 Disaster Recovery System Configuration and Operation Guide.
data: Stops the updating of the volumes located at the main site.
never: Updates only the volumes located at the main site and continues operation.
Relationship to other operands
If you specify sync, hybrid, or syssync operand in the pd_rise_pairvolume_combination operand, you must also specify this operand. If this operand is omitted, HiRDB cannot be started.