HP P9000 for Compatible XRC User Guide (AV400-96390, October 2011)
Table Of Contents
- P9000 for Compatible XRC User Guide
- Contents
- 1 Overview of Compatible XRC
- 2 Requirements and restrictions
- 3 Interoperability with other products and functions
- Volume sharing between Compatible XRC and other copy functions
- Using two Compatible XRC pairs in conjunction
- Using Compatible XRC in conjunction with Continuous Access Synchronous Z
- Using Compatible XRC in conjunction with Business Copy Z
- Using Compatible XRC in conjunction with Compatible FlashCopy
- Using Compatible XRC in conjunction with Compatible FlashCopy SE
- 4 Performing Compatible XRC operations
- 5 Troubleshooting
- 6 Support and other resources
- A Controlling the amount of write data
- B Compatible XRC GUI reference
- Glossary
- Index
the default threshold is 0x500. When Level 1 Sleep is set to Disable, write I/Os to volumes
are not put in a wait status.
• Level 1: This level of control is performed when the sidefile capacity is equal to or larger than
the level-1 threshold, and is smaller than the level-2 threshold.
Write I/Os to volumes are put in a wait status by command retry when the sleep wait threshold
(i.e., level-1 threshold) is exceeded.
• Level 2: This level of control is performed when the sidefile capacity is equal to or larger than
the level-2 threshold, and is smaller than the level-3 threshold.
Write I/Os to volumes are put in a wait status by SCP-SCI reporting when the SCP-SCI reporting
threshold (i.e., level-2 threshold) is exceeded.
• Level 3: This level of control is performed when the sidefile capacity is equal to or larger than
the level-3 threshold.
Sidefile puncture will occur.
Figure 13 Controlling the Amount of Write Data (2)
When do not block (volume level) option is set to disable 25