| Property | Description |
|---|---|
|
Parameter type |
Integer |
|
Default value |
|
|
Modifiable |
|
|
Range of values |
0 or any integer in [60, 7200] |
|
Basic |
No |
|
Oracle RAC |
Multiple instances should use the same value |
ARCHIVE_LAG_TARGET forces a log switch after the specified amount of time elapses.
A 0 value disables the time-based thread advance feature; otherwise, the value represents the number of seconds. Values larger than 7200 seconds are not of much use in maintaining a reasonable lag in the standby database. The typical, or recommended value is 1800 (30 minutes). Extremely low values can result in frequent log switches, which could degrade performance; such values can also make the archiver process too busy to archive the continuously generated logs.
See Also:
Oracle Database Administrator's Guide for more information about setting this parameter