About the Lost Media report

The Lost Media report lists expired media that has not been returned from the offsite vault vendor.

Media that appear on the Lost Media report have the following:

An assigned date of 0 or are frozen.
A robot number value of null.
A vault sent date value that is non-null.
A non-null return date.

Media can get lost for various reasons, as follows:

A volume appears on the Picking List for Vault only once. If a volume from that report is missed and is not returned to the robot, it never again is listed for recall.
Frozen backup media never expires. Media that does not expire will not appear on the Picking List for Vault and will not be recalled from the vault.
You change or rename your offsite volume groups and pools; for example, if you begin using a new media type, you will have to use a new volume pool name. Symantec recommends that you do not change or rename group or pool names.

You must generate the Lost Media report; it is not generated when you eject media. You do not have to configure your profiles for the Lost Media report. Usually, media included in the Lost Media report should be returned from offsite and injected back into the appropriate vault in the robot.

A good practice is to run the Lost Media report periodically, such as weekly or monthly (depending on your operations).

Report settings:

See About the profile.
See About the session ID.
See About the skip media requested for return.

Column descriptions in the Lost Media report are as follows:

DENSITY	Density of the volume.
LAST MOUNT	The date the volume was last mounted.
MEDIA ID	The ID of the media.
REQUESTED	Date when the volume is requested back from the offsite vault.
VAULT	The vault to which the volume belongs.
VOLUME GROUP	The volume group to which the volume is assigned.