IMPORTANT: For arrays that permit RAID choice when creating volumes (for exaple the EVA), the concept of flexible RAID Pools is introduced. In this case, the amount of unallocated space is dependent on the RAID level chosen for new volumes. Therefore, the values for Unallocated and Total Capacity displayed may be modified dynamically by choosing a RAID level for unallocated space.
Figure 86
The following table describes how the properties are calculated for HDS array groups.
Table 52 Explanation of the Properties of the Capacity Levels for HDS Array Groups
Property Displayed for an | How It Is Calculated | Explanation |
Array Group |
|
|
(CIM_StoragePool) |
|
|
|
|
|
Total Capacity | sum of volume.size + | The sum of the sizes of all |
| pool.totalRemainingSpace | LDEVs in the array group |
|
| plus the total free space |
|
|
|
Total Internal | (sum of volume.size — sum of | The sum of the sizes of all |
| external volume.size) + | internal LDEVs |
| pool.totalRemainingSpace |
|
|
|
|
Mapped | sum of volume.size for each | LDEVs that have LUNs |
| volume that has a LUN |
|
|
|
|
Unmapped | sum of volume.size for each | LDEVs that do not have LUNs |
| volume that doesn't have a | but are not on the |
| LUN | management server's “free” |
|
| list |
|
|
|
Total Allocated | sum of volume.size for all | All LDEVs that are not on the |
| volumes | management server's “free” |
|
| list |
|
|
|
HP Storage Essentials SRM 6.0 User Guide 365