How many drives should be assigned for disk pool preservation capacity in a E-Series system?
Applies to
- All E-Series Controllers
- All E-Series Firmware
Answer
- Number of drives reserved by default for preservation capacity when creating a Disk Pool in SANtricity:
Disk Pool Drive Count | Default Number of Drives Reserved for Preservation Capacity |
11 | 1 |
12-31 | 2 |
32-63 | 3 |
64-127 | 4 |
128-191 | 6 |
192-255 | 7 |
256-384 | 8 |
- Table can be used to determine number of drives required for preservation capacity for new disk pools or adding/removing drives to an existing disk pool
- The number of drives assigned for preservation capacity will depend on user comfort level with amount of failures the disk pool can sustain before failing
Additional Information