Nonstop Database, HiRDB Version 9 System Operation Guide

[Contents][Index][Back][Next]

4.4 Status changes of synchronization point dump files

Table 4-3 Status changes of synchronization point dump files while HiRDB is operating (when synchronization point dump files are not duplicated) and Table 4-4 Status changes of synchronization point dump files while HiRDB is operating (when synchronization point dump files are duplicated) show the synchronization point dump file status changes during HiRDB operation.

Table 4-3 Status changes of synchronization point dump files while HiRDB is operating (when synchronization point dump files are not duplicated)

Event Status of synchronization point dump file
Open Closed
Overwrite enabled Now writing Overwrite disabled Reserved
1 2 3 4
Synchronization point dump is being output [Figure]2 -- -- --
Synchronization point dump was validated -- [Figure]3 [Figure]1# --
Synchronization point dump output error occurred -- [Figure]4 -- --
pdlogcls command was executed# [Figure]4 -- -- --
pdlogopen command was executed# -- -- -- [Figure]1

Legend:
--: Does not apply, or status does not change.
[Figure]n: Status to which synchronization dump file changes after occurrence of the event.
For example, [Figure]1 indicates that after the event occurs, the status of the synchronization dump file changes to overwrite enabled (status No. 1).

Note: The status transitions listed in this table assume that the relevant events were processed normally.

#: Among files in overwrite disabled status, the indicated status changes are from the oldest generation.

Table 4-4 Status changes of synchronization point dump files while HiRDB is operating (when synchronization point dump files are duplicated)

Event Status of system log files
Overwrite enabled Now writing Overwrite disabled Rsrvd
Both open Sys A open Sys A clsd Both open Sys A open Sys A clsd Both open Sys A open Sys A clsd Both clsd
Sys B clsd Sys B open Sys B clsd Sys B open Sys B clsd Sys B open
1 2 3 4 5 6 7 8 9 10
A synchronization point dump was just acquired [Figure]4 [Figure]5 [Figure]6 -- -- -- -- -- -- --
Synchronization point dump was validated -- -- -- [Figure]7 [Figure]8 [Figure]9 [Figure]1# [Figure]2# [Figure]3# --
Output error occurred in A system file -- -- -- [Figure]6 [Figure]
10
-- -- -- -- --
Output error occurred in B system file -- -- -- [Figure]5 -- [Figure]
10
-- -- -- --
pdlog cls executd
(with -a or -b)
Omit ted [Figure]
10
[Figure]
10
[Figure]
10
-- -- -- -- -- -- --
-a [Figure]3 [Figure]
10
-- -- -- -- -- -- -- --
-b [Figure]2 -- [Figure]
10
-- -- -- -- -- -- --
pdlog open executd
(with -a or -b)
Omit ted -- [Figure]1 [Figure]1 -- -- -- -- [Figure]7 [Figure]7 [Figure]1
-a -- -- [Figure]1 -- -- -- -- -- [Figure]7 [Figure]2
-b -- [Figure]1 -- -- -- -- -- [Figure]7 -- [Figure]3

Legend:
--: Does not apply, or status does not change.
[Figure]n: Status to which synchronization dump file changes after occurrence of the event.
For example, [Figure]1 indicates that after the event occurs, the status of the synchronization dump file changes to overwrite enabled (status No. 1).

Note: The status transitions listed in this table assume that the relevant events were processed normally.

#: Among files in overwrite disabled status, the indicated status changes are from the oldest generation.