In the following cases, set options if necessary because the background copying operation is performed in NOCOPY mode:
- For the applicable relationship, when you execute the Establish command with NOCOPY2COPY specified.
- While deleting the applicable relationship, when you execute the Withdraw command with DDSW(YES) specified.
- When you delete a data set, or a host issues the Withdraw command with DDSW(YES) specified.
|
Option |
Description |
|---|---|
|
FC Slower Copy1 |
Reduces the number of concurrent Compatible FlashCopy® background copy operations by half and prioritizes host I/O operations. For details, see FC Slower Copy1 option. Note: If the FC Slower Copy2 option is enabled, then the FC Slower Copy1 option is ignored. Make sure the FC Slower Copy2 option is disabled when using this option. |
|
FC Slower Copy2 |
Reduces the number of concurrent Compatible FlashCopy® background copy operations by quarter and prioritizes host I/O operations. This option reduces more Compatible FlashCopy® background copy operations than the FC Slower Copy1 option. For details, see FC Slower Copy2 option. |
|
FC Ext. Slower Copy1 |
When the MP unit usage rate exceeds 65%, this option reduces Compatible FlashCopy® background copy operations, and gives priority to host I/O operations. For details, see FC Ext. Slower Copy1 option. Note: If the FC Slower Copy1, FC Slower Copy2, or FC Ext. Slower Copy2 option is enabled, this option will be ignored. Make sure those options are disabled when selecting this option. |
|
FC Ext. Slower Copy2 |
When the MP unit usage rate exceeds 50%, this option reduces Compatible FlashCopy® background copy operations, and gives priority to host I/O operations. This option reduces more Compatible FlashCopy® background copy than with the FC Ext. Slower Copy1 option. For details, see FC Ext. Slower Copy2 option. |