vSAN Capacity Dashboard

The
vSAN Capacity
dashboard complements the vSphere
Cluster Capacity
dashboard by displaying capacity related to vSAN. To manage vSAN capacity, use both dashboards.

Design Considerations

The dashboard focuses on vSAN specific metrics, but does not list non-vSAN clusters.
See Capacity Dashboards for common design considerations among all the dashboards for capacity management.

How to Use the Dashboard

  • Overall Analysis
    The
    Clusters by Capacity Remaining
    and
    Clusters by Time Remaining
    bar charts focus on vSAN disk space and not compute and network.
    Use the
    vSAN Clusters
    table to view vSAN specific metrics.
  • Cluster Analysis
    Select a vSAN cluster from the
    vSAN Clusters
    table. The detailed capacity is automatically displayed.
    The
    Utilization
    widget displays the utilization for all three elements, as you need to consider all three. Network is not shown as typically it is not a problem.
    Like a physical array, there can be hot spots and imbalance. The
    Is Disk Group Space Utilization Balanced
    heat map displays individual disk groups.
    Reclaimable storage is a key component of proactive capacity management. You can view details for both VMs and non-VMs.
    You can view the
    Dedupe and Compressed
    scoreboard for more details in this area.
  • Disk Group Analysis
    If there is imbalance, you can analyze each disk group. The
    Disk Groups Selected in Selected vSAN Cluster
    displays all the disk groups in the cluster. Their usage may not be similar, but should not deviate drastically. To view the disk group usage trend, click on a disk group.
  • VM Analysis
    You can analyze individual VMs in the selected cluster from the
    VMs in the selected vSAN Cluster
    table and check their usage and snapshot. To view the trend in Usage, click on a VM. In addition, the relevant configurations of the VM is displayed.