BMC TrueSight Capacity Optimization metricUnitDisplay nameDescriptionValue typeCollection levelST_AVAILABLE_CAPACITYBYTESAvailable CapacityCapacity not consumed (for storage systems: unused raw space plus available capacity in storage pools)Negative accumulation counter[2] BasicST_CAPACITYBYTESStorage CapacityTotal capacity (for storage systems: unused raw space plus sum of the capacity for all storage pools)Generic counter, absolute value[2] BasicST_CONSUMED_CAPACITYBYTESStorage Consumed CapacityActually consumed capacityGeneric counter, absolute value[1] EssentialST_CONSUMED_CAPACITY_PCTPCTStorage Consumed Capacity PercentagePercentage of capacity actually consumedPercentage counter[2] BasicST_OVERSUBSCRIBED_CAPACITYBYTESStorage Oversubscribed CapacityStorage subscribed capacity exceeding the actual capacity of the componentGeneric counter, absolute value[2] BasicST_SIZEBYTESStorage SizeOverall size of the component (for a storage system, this value is the sum of the raw size of all disks. For a storage pool this value is the external size)Generic counter, absolute value[2] BasicST_SYSTEM_BANDWIDTH_UTILPCTSystem Bandwidth UtilizationBandwidth consumed in storage systemPercentage counter[2] BasicST_SYSTEM_IO_RATEOP/SStorage System Operation RateTotal number of operations per second performed by the systemA frequency, in events/sec[3] StandardST_SYSTEM_IO_READ_RATEOP/SStorage System Read Operation RateNumber of read operations per second performed by the systemA frequency, in events/sec[3] StandardST_SYSTEM_IO_WRITE_RATEOP/SStorage System Write Operation RateNumber of write operations per second performed by the systemA frequency, in events/sec[3] StandardST_SYSTEM_SUBSCRIBED_CAPACITYBYTESStorage Subscribed CapacitySum of the host visible capacity for mapped volumes. Can be greater than the actual capacity of the storage system with over-subscribed thin poolsGeneric counter, absolute value[2] BasicST_SYSTEM_TRANSFER_BYTE_RATEBYTE/SSystem Transfer Byte RateTotal data traffic (in and out, read and write)A frequency, in events/sec[3] Standard