NUMBER OF COPIES field (TWOARCH subsystem parameter)
The TWOARCH subsystem parameter specifies the number of copies of the archive log that Db2 is to produce during offloading.
| Acceptable values: | 1, 2 |
|---|---|
| Default: | 2 |
| Update: | option 8 on panel DSNTIPB |
| DSNZPxxx: | DSN6LOGP TWOARCH |
If you run the installation or migration CLIST, the setting of the NUMBER OF COPIES field determines the setting of the TWOARCH subsystem parameter. Valid values of the TWOARCH subsystem parameter are NO and YES.
- 1
- Db2 produces a single copy of the archive log during offloading. This setting corresponds with a value of NO for the TWOARCH subsystem parameter.
- 2
- Db2 produces two copies of the archive log during offloading. Dual logging increases reliability of recovery. This setting corresponds with a value of YES for the TWOARCH subsystem parameter.