Viewing a device's statistics

The Device Properties Statistics tab provides the date the device was last mounted, device totals such as the total number of bytes written and read, and device errors. Error rates are affected by media, head cleaning, and head wear.

The documentation included with your device should list the acceptable limits for hard and soft errors; if not, check with the hardware manufacturer.

To view a device's statistics properties

On the navigation bar, click Devices.
Expand the server icon, click Stand-alone Drives, or if the drive is attached to a robotic library, click Robotic Libraries.
Select the device for which you want to view properties.

Under General Tasks in the task pane, select Properties, and then on the Drive Properties dialog box, click Statistics.

The Statistics tab provides the following information:

Last mount date	Last date that media was mounted by this device.
Total bytes written	Number of bytes that have been written by this device.
Total bytes read	Number of bytes that have been read by this device.
Total mounts	Number of times media has been mounted by this device.
Total seeks	Total number of seek operations (performed when a specific piece of information is being located) that have been performed by this device.
Total hours in use	Total number of hours that this device has been in use (performing read, write, mount, and seek operations).
Seek errors	Number of errors encountered while trying to locate data.
Soft read errors	Number of recoverable read errors encountered. If you receive soft errors, it may indicate the beginning of a problem. If you receive excessive errors for your environment, check the device and perform maintenance on it, and check the media for damage.
Hard read errors	Number of unrecoverable read errors encountered. If you receive hard errors, check the device and perform maintenance on it, and check the media for damage.
Soft write errors	Number of recoverable write errors encountered. If you receive soft errors, it may indicate the beginning of a problem. If you receive excessive errors for your environment, check the device and perform maintenance on it, and check the media for damage.
Hard write errors	Number of unrecoverable write errors encountered. If you receive hard errors, check the device and perform maintenance on it, and check the media for damage.