IBM System z10 Enterprise Class Enterprise Class

| Model | Books_PUs | IFLs_uIFLs | zAAPs_zIIPs | ICFs | Opt_SAPs | Std_SAPs | Std_Spares | Standard_Memory_GB | Flexible_Memory_GB |
|---|---|---|---|---|---|---|---|---|---|
| E12 | 1 / 17 | 0-12 / 0-11 | 0-6 / 0-6 | 0-12 | 0-3 | 3 | 2 | 16 - 352 | NA |
| E26 | 2 / 34 | 0-26 / 0-25 | 0-13 / 0-13 | 0-16 | 0-7 | 6 | 2 | 16 - 752 | 32 - 352 |
| E40 | 3 / 51 | 0-40 / 0-39 | 0-20 / 0-20 | 0-16 | 0-11 | 9 | 2 | 16 - 1136 | 32 - 752 |
| E56 | 4 / 68 | 0-56 / 0-55 | 0-28 / 0-28 | 0-16 | 0-18 | 10 | 2 | 16 - 1520 | 32 - 1132 |
| E64 | 4 / 77 | 0-64 / 0-63 | 0-32 / 0-32 | 0-16 | 0-21 | 11 | 2 | 16 - 1520 | 32 - 1136 |