Additional information is reported within data group status configured to use MIMIX support for IBM’s High Availability Journal Performance IBM i option 42, Journal Standby feature and Journal caching. When these high availability journal performance enhancements are in use, conditions that require action or attention are reflected in these locations:
The data group name is highlighted on the Work with Data Groups display. The possible problems associated with journal cache or journal state are identified Conditions which highlight the data group name in color in topic Identifying and resolving problems reflected in the Data Group column.
Jrn State and Cache (Src and Tgt) fields within the data group detailed status are highlighted. These fields are on the database views 1 and 2 of the Data Group Database Status display (Figure 18, Figure 19 respectively, shown in Database detailed status views). The possible values for the Jrn State and Cache (Src and Tgt) fields are indicated in Possible status values for Journal State fields (journal state) and Possible status values for Journal Cache fields (journal cache).
The Jrn State and Cache (Src and Tgt) fields reflect journal standby state and journal caching actual values for the journals when the IBM high availability performance enhancements are installed on the systems defined to the data group. These fields appear on database views 1 and 2 (Figure 18 and Figure 19). The target journal state and cache values are set on the journal when the database apply session is started.
- Journal State - The status values indicate the actual state value for the source and target journals. Possible status values for Journal State fields shows the possible values for each field.
- Journal Cache - The status indicate the actual cache value for the source and target journals. Possible status values for Journal Cache fields shows the possible values for each field.
For each system (Src or Tgt) status of the journal state is shown first, followed by the status of the journal cache. If a problem exists with journal state or journal cache, the data group name is also highlighted with the same color. For information about resolving journal cache or journal state problems, see Resolving a problem with journal cache or journal state.
Field |
Color and Status |
Description |
|
|---|---|---|---|
|
Either system |
White |
U |
Unknown. MIMIX was not able to retrieve values, possibly because the journal environment has not yet been built. |
|
No color |
A |
Journal state is active |
|
|
No color |
X | The required IBM feature, IBM i option 42 - High Availability Journal Performance, is not installed on this system | |
|
No color |
S |
Journal is in standby state as expected |
|
|
Source |
Red |
S |
Source journal is in standby state but that state is not expected. |
| Red | I |
Source journal in inactive state but that state is not expected. |
|
|
Target |
Yellow |
S |
Target journal state or cache is not as expected and the database apply session is active |
| Yellow | I | Target journal state is inactive but that state is not expected. | |
| blank | blank |
The IBM feature is installed but the data group is configured to not journal on the target system. |
|
Field |
Color and Status |
Description |
|
|---|---|---|---|
White |
U |
Unknown. MIMIX was not able to retrieve values, possibly because the journal environment has not yet been built |
|
| Either System | No color | X | The required IBM feature, IBM i option 42 - High Availability Journal Performance, is not installed on this system |
| No color | Y | Caching is active | |
| No color | N | Caching is not active. | |
| Source | Yellow | Y | Source journal cache value is not as expected. |
| Yellow | N | Source journal cache value is not as expected. | |
| Target | Yellow | Y | Target journal cache value not as expected and the database apply session is active. |
| Yellow | N | Target journal cache value not as expected and the database apply session is active. | |
| blank | blank | The IBM feature is installed but the data group is configured to not journal on the target system. | |