Datastores The datastore charts contain information about disk usage for datastores. The help topic for each chart contains information about the data counters displayed in that chart. The counters available are determined by the collection level set for vCenter Server. Subtopics Space in GB Space Utilization By File Type Space Utilization by Virtual Machine Storage I/O Control Normalized Latency Storage I/O Control Aggregate IOPs Average Device Latency by Host Maximum Queue Depth By Host Read IOPs by Host Write IOPs by Host Read Latency by Virtual Machine Disk Write Latency by Virtual Machine Disk Read IOPs by Virtual Machine Disk Write IOPs by Virtual Machine Disk