For the selected Storage Domain, you might need to optimize the frequency with which the Oracle FS System scans the data access patterns of the auto‑tiered LUNs.
The Oracle FS System scans the data access patterns of the auto‑tier LUNs to determine the best time to place data in the Storage Classes within the Storage Domain. You can optimize the auto‑tier scans by lengthening or shortening the time between scans. A shorter time span increases the number of scans and results in frequent data migration. A longer time span might represent the actual data access patterns of your system.
Important! Adjusting the auto‑tier scans might affect the efficiency of the QoS Plus feature. Use caution before adjusting the scan options.
For example, setting the Number of n‑hour Scan Cycles too low can move data that is accessed frequently over a long time period to be moved to a lower performance drive.- Navigate to .
- Select the Storage Domain to update.
- Select .
- Select the lock icon (
) to unlock the Auto‑Tier Scan Options. - (Optional) In the Performance-Optimizing Scan Cycle field, enter the frequency value.
- (Optional) In the Number of n‑hour Scan Cycles field, enter the cycles value.The system calculates the Cost‑Optimizing Scan Cycle value.
- Click OK.
Reset the auto‑tier scan options to the default values when the custom settings are no longer needed.