User Guide
220 Spheras Storage Director Installation and User Guide
A:o A:JBOD A:1
Array Configuration: Two Drives
Drives and Drive Groups Possible RAID Levels
Effective Capacity
A:o A:JBOD A:1
B:o B:JBOD B:1
A:oo A:0 A:2
A:1 A:1*
Table 7 Array configuration – Two drives
Array Configuration: Three Drives
Drives and Drive Groups Possible RAID Levels Effective Capacity
A:o A:JBOD A:1
B:o B:JBOD B:1
C:o C:JBOD C:1
A:oo A:0 A:2
O A:1/SBY A:1**
A:ooo A:5
A:2
A:0+1 A:1:5*
A:0 A:3
Table 8 Array configuration – Three drives
Array Configuration: Four Drives
Drives and Drive Groups Possible RAID Levels Effective Capacity
A:o A:JBOD A:1
B:o B:JBOD B:1
C:o C:JBOD C:1
D:o D:JBOD D:1
A:oooo A:5 A:3*
A:0+1 A:2*
A:0 A:4
A:ooo A:5/SBY A:2**
O A:0+1/SBY A:1:5**
Table 9 Array Configuration - Three drives
Table 6 Array configuration – One drive