While performing deep discovery using Storage Insight Add-on for HITACHI arrays, the array group storage capacity is calculated as the total of all its constituent physical disks. However, some of these physical disks may be shared among other array groups. The system does not consider this, and as a result counts the full capacity of all shared physical disks in all array groups using those disks - considering that the physical disk is dedicated to the array group.

Secondly, due to this issue the array group overheads are calculated incorrectly. They are too large in size.

There is no workaround available for the issue.