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
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
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).