- Read/Write Bandwidth chart

# Read/Write Bandwidth chart

Contents

The Read/Write Bandwidth chart shows read and write activity on all file systems, all servers one file system, or a specific server, or over time.

Depending on the view selected, the chart notation and display adjusts to occupy the full vertical range of the chart. This chart shows zero read or write operations across the center-line and values greater than zero expanding from the center-line. Read operations are shown above the center line; write operations are shown below the center line. This chart is displayed when File Systems are selected for display (default), or servers, or targets are selected.

## Features

• | Mouse over any point on the chart to learn the date/time of this measurement and the read and write values at that time.

• | Click Change Duration to set the total time duration to Minutes (1-60), Hours (1-24), Days (1- 31), or Weeks (1-4). Note that for long durations, the map will be divided over several days, with samples periods starting at different times of the day.

• | Click Full Screen to fill the browser window with this chart. Click Exit Full Screen to return to the normal view.

• | Click Read or Write to view only read or write information on the chart.

## View this chart for a specific file system

This chart is displayed by default for all file systems. To view this chart for a single file system:

1. | On the Dashboard, click Configure Dashboard.

2. | Select File System (default).

3. | At the File System drop-down menu, select the file system. Then click Update.

## View this chart for a specific OST

To view this chart for a single OST:

1. | On the Dashboard, click Configure Dashboard.

2. | Select Server.

3. | At the Server drop-down menu, select the server hosting the desired target.

4. | At the Target drop-down menu, select the desired OST. Then click Update.

## Configure the Read/Write Bandwidth chart

1. | Click Configure.

2. | Click Set Duration and enter at time period over which samples will be taken. Enter Minutes (1-60), Hours (1-24), Days (1- 31), or Weeks (1-4). Note that for long durations, the map will be divided over several days, with samples periods starting at different times of the day. The value given is an average for that sample period.

3. | Click Set Range to set the Start and End times and dates over which measurements will be displayed. This view of the chart is a static snapshot, starting and ending as configured.

4. | Click Update to apply and close this window.