Use the datastore Performance tab to monitor how Storage I/O Control handles the I/O workloads of the virtual machines accessing a datastore based on their shares.

Datastore performance charts allow you to monitor the following information:
  • Average latency and aggregated IOPS on the datastore
  • Latency among hosts
  • Queue depth among hosts
  • Read/write IOPS among hosts
  • Read/write latency among virtual machine disks
  • Read/write IOPS among virtual machine disks


  1. Browse to the datastore in the vSphere Client.
  2. Under the Monitor tab, click Performance.
  3. Select Advanced.