The number of cache management devices required for a volume might exceed one only if the volume is a V-VOL. To determine the required number, use the appropriate calculation formula.
The following table shows the support status of each management tool for the cache management device function.
| Management tool | Support status | Supported DKCMAIN microcode version |
|---|---|---|
| VSP One Block Administrator | No | NA |
| VSP Block Storage REST API | No | NA |
| CCI | Yes | All versions |
Number of cache management devices required:
- V-VOL size 1 - 806,400: 1 Cyl
- V-VOL size 806,401 - 1,182,006: 2 Cyl