Storage optimization (mirrored with Extended Availability)
Table 1. Storage optimization (mirrored with Extended Availability)
| Physical width |
Drives per Slicestors |
Site count |
IDA configuration |
Expansion factor |
Read penalty |
| 3 |
12 |
1 or 2 |
18/9/11/18 |
2.00×2 = 4.00 |
9 |
| 3 |
24+ |
1 or 2 |
36/20/23/25 |
1.80×2 = 3.60 |
20 |
| 4 |
12 |
1 or 2 |
24/14/17/19 |
1.71×2 = 3.42 |
14 |
| 4 |
24+ |
1 or 2 |
40/26/29/31 |
1.54×2 = 3.08 |
26 |
| 5 |
12 |
1 or 2 |
30/20/23/25 |
1.50×2 = 3.00 |
20 |
| 5 |
24+ |
1 or 2 |
40/28/31/33 |
1.43×2 = 2.86 |
28 |
| 6 |
12 |
1 or 2 |
36/26/29/31 |
1.38×2 = 2.76 |
26 |
| 6 |
12+ |
1 or 2 |
36/20/23/25 |
1.80×2 = 3.60 |
20 |
| 6 |
24+ |
1 or 2 |
36/26/29/31 |
1.38×2 = 2.76 |
26 |
| 6 |
24+ |
1 or 2 |
36/20/23/25 |
1.80×2 = 3.60 |
20 |