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Dashboard

Sara Levy
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The VAST Web UI dashboard offers you a quick and easy way to monitor your VAST Cluster. 

The dashboard appears when you log in to the VAST Web UI. To return to it at any time, click the VAST Data logo at the top of the page or select Dashboard from the left navigation menu.

The dashboard features several cards:

Capacity

The Capacity card features two display modes:

  • Bar chart mode:

    capacitybar.png

    1. The data reduction ratio (DRR), continuously computed as the ratio of all data written by your data clients to the cluster (including snapshots) to the physical capacity in use. This figure reflects the reduction performed by the cluster through compression, de-duplication and such.

    2. Capacity breakdown bar: reflects the percentage breakdown of the cluster's capacity into:

      • Used. The amount of data written to the cluster, not including snapshots.

      • Auxilliary. The amount of data written to the cluster as snapshot data.

      • Free. The remaining unused capacity of the cluster.

      Note

      The breakdown of the capacity into these categories is the same for both the logical and the physical capacity of the cluster.

    3. The detailed breakdown of the cluster capacity:

      • Logical Used. The amount of logical data written to the cluster by your data clients. This figure doesn't include snapshots.

      • Logical Aux. The amount of logical data written to the cluster as snapshot data.

      • Logical Free. The estimated effective free capacity remaining for writing data to the cluster, based on the current DRR.

      • Physical Used. Physical SSD space being used by primary data. This is all data except snapshots and data pending deletion.

      • Physical Aux. The amount of physical SSD space in use by snapshots and by any data that may be pending deletion at the current time. This figure usually gives a close indication of snapshot capacity usage. However, at times when a large amount of data was recently deleted, wiping that data from physical storage may taken some time and temporarily enlarge this figure.

      • Physical Free. Total physical SSD space available.

  • Pie chart mode:

    CapacityEfficiency.png

    1. The data reduction ratio (DRR), continuously computed as the ratio of all data written by your data clients to the cluster (including snapshots) to the physical capacity in use. This figure reflects the reduction performed by the cluster through compression, de-duplication and such.

    2. The DRR reflected graphically by the relative sizes of logical and physical capacity.

      Hover over these sectors to see the subcategories of the logical and physical capacities at a higher level of precision than displayed (see next).

    3. The breakdown of the cluster's logical and physical capacity displayed as color differentiated sectors of the outer ring:

      • Logical Used. The amount of logical data written to the cluster by your data clients. This figure doesn't include snapshots.

      • Logical Aux. The amount of logical data written to the cluster as snapshot data.

      • Logical Free. The estimated effective free capacity remaining for writing data to the cluster, based on the current DRR.

      • Physical Used. Physical SSD space being used by primary data. This is all data except snapshots and data pending deletion.

      • Physical Aux. The amount of physical SSD space in use by snapshots and by any data that may be pending deletion at the current time. This figure usually gives a close indication of snapshot capacity usage. However, at times when a large amount of data was recently deleted, wiping that data from physical storage may taken some time and temporarily enlarge this figure.

      • Physical Free. Total physical SSD space available.

      Note

      By default, the units of measurement shown on the Dashboard are base10 units. If you prefer, you can switch to base2 units. See Changing Units of Measurement.

Performance

performance_card.png

The Performance card dials show frequently updated real time metrics:

  • Bandwidth. The rate at which data is transmitted between the client network and VAST Cluster.

    Tip

    Click the dial to toggle between total bandwidth and a breakdown of read and write bandwidth.

    BandwithDialToggle.gif

  • IOPS. The number of I/O operations performed per second.

    Tip

    Hover over the dial to display total, read and write IOPs. Click the dial to toggle between displaying total IOPS and displaying a breakdown of read and write IOPS.

  • Latency. The average time needed to perform an I/O operation.

    Tip

    Hover over the dial to display total, read and write latency. Click the dial to toggle between displaying total latency and displaying a breakdown of read and write latency.

Inventory

The Inventory card shows the main components of the cluster's hardware inventory and the primary status information.

Inventory.png

  1. Click open_maintenance.png to open the Maintenance page to drill down to more detail. The Maintenance page opens to the relevant inventory tab.

  2. Other refers to components in states other than Active or Failed.

Metric Graph Cards

Each graph displays the levels of selected analyzed metrics as they varied in recent seconds. You can change the combination of metrics displayed on each graph.

metric_graphs.png

  1. To change the metrics displayed on each graph, click change_metrics_selection.png and then select the metrics you want to display.

  2. Hover over a point on a graph to see higher precision values.

Tip

To see deeper analytics, use our analytics reports.

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