Go to main content

Oracle® ZFS Storage Appliance Administration Guide, Release OS8.7.x

Exit Print View

Updated: November 2018
 
 

Status Dashboard

The dashboard summarizes appliance status.

image:Status Dashboard

The status dashboard provides links to all main screens of the browser user interface (BUI). Over 100 visible items on the dashboard link to associated BUI screens indicated by a border or highlighted text that appears when hovered over. The sections that follow describe the areas of the dashboard in detail.

Usage Dashboard

The Usage area of the dashboard provides a summary of your storage pool and main memory usage. The name of the pool appears at the top right of the Usage area. If multiple pools are configured, use the pull-down list to select the pool you want to display.

Figure 10  Status Dashboard: Usage

image:Status Dashboard Usage

The total pool capacity is displayed to the right of the storage usage pie chart. The storage pie chart details the used and available space. To go to the Shares screen for the pool, click the storage pie chart.

The total system physical memory is displayed to the right of the memory pie chart. To the left is a pie chart showing memory usage by component. To go to the Analytics worksheet for dynamic memory usage broken down by application name, click the Memory pie chart.

Services Dashboard

The services area of the dashboard shows the status of services on the appliance, with a light icon to show the state of each service.

Figure 11  Services Dashboard

image:Services dashboard

Most services are green to indicate that the service is online, or grey to indicate that the service is disabled. For a reference of all possible states and icon colors, see Browser User Interface (BUI).

To go to the associated configuration screen, click on a service name. The Properties screen appears with configurable fields, restart, enable, and disable icons, and a link to the associated Logs screen for the service.

Hardware Dashboard

The Hardware area of the dashboard shows an overview of hardware on the appliance.

Figure 12  Hardware Dashboard

image:Hardware Dashboard

If there is a known fault, the amber fault image:Status: Warning icon appears.

To go to the Hardware screen for a detailed look at hardware state, click the name of a hardware component.

Activity Dashboard

The activity area of the dashboard shows graphs of eight performance statistics by default. The example in this section shows Disk operations/second. The statistical average is plotted in blue and the maximum appears in light grey.

Figure 13  Disk Activity Dashboard

image:Disk Activity Dashboard

To go to the Analytics worksheet for an activity, click one of the four graphs (day, hour, minute, second) for the statistic you want to evaluate.

To view the average for each graph, mouse-over a graph and the average appears in the tooltip. The weather icon in the upper-left provides a report of activity according to thresholds you can customize for each statistic on the Status Dashboard Settings screen.

Table 25  Summary of Statistic Graphs
Summary of Statistic Graphs
7-day graph (7d)
A bar chart, with each bar representing one day.
24-hour graph (24h)
A bar chart, with each bar representing one hour.
60-minute graph (60m)
A line plot, representing activity over one hour (also visible as the first one-hour bar in the 24-hour graph).
1-second graph
A line plot, representing instantaneous activity reporting.

The average for the selected plot is shown numerically above the graph. To change the average that appears, select the average you want, either 7d, 24h, or 60m.

The vertical scale of all graphs is printed on the top right, and all graphs are scaled to this same height. The height is calculated from the selected graph (plus a margin). The height will rescale based on activity in the selected graph, with the exception of utilization graphs which have a fixed height of 100 percent.

Since the height can rescale, 60 minutes of idle activity may look similar to 60 minutes of busy activity. Always check the height of the graphs before trying to interpret what they mean.

Understanding some statistics may not be obvious - you might wonder, for a particular appliance in your environment, whether 1000 NFSv3 ops/sec is considered busy or idle. This is where the 24-hour and 7-day plots can help, to provide historic data next to the current activity for comparison.

The plot height is calculated from the selected plot. By default, the 60-minute plot is selected. So, the height is the maximum activity during that 60-minute interval (plus a margin). To rescale all plots to span the highest activity during the previous 7 days, select 7d. This makes it easy to see how current activity compares to the last day or week.

The weather icon is intended to grab your attention when something is unusually busy or idle. To go to the weather threshold configuration page, click the weather icon. There is no good or bad threshold, rather the BUI provides a gradient of levels for each activity statistic. The statistics on which weather icons are based provide an approximate understanding for appliance performance that you should customize to your workload, as follows:

  • Different environments have different acceptable levels for performance (latency), and so there is no one-size-fits-all threshold.

  • The statistics on the Dashboard are based on operations/sec and bytes/sec, so you should use Analytics worksheets for an accurate understanding of system performance.

Recent Alerts

This section shows the last four appliance alerts. Click the box to go to the Logs screen to examine all recent alerts in detail.

Figure 14  Recent Alerts

image:Recent alerts