7
<DRC1285>
En
English
READ BEFORE USE
SECURITY FEATURES
Information on the location of discs within the changer and
information to access data on discs are strictly monitored
and controlled from the changer control software and the
upper-level database management software.
Because of this, if any changes in the status of the discs
within the changer occur at a time when the changer is not
under the control of the host computer (or in a network
environment, under the control of a server), it becomes
impossible to control the changer and drives and to read
necessary files from discs.
Allowing discs stored within the changer to be removed
without any restrictions poses a security risk, not only in that
it would become impossible to access discs which have been
removed but also in that it might lead to the damage or loss
of discs.
Although the DRM-7000/DRM-3000 has been designed so
as to open the front and rear access doors from the control
panel (located at the top of the front of the unit) to remove
magazines or to insert or remove discs through the mailslots,
anyone who considers the security issues noted above will
be able to understood that it is necessary to place restrictions
on such operations.
This is why the control panel of the DRM-7000/DRM-3000
has been fitted with a key switch which may be locked to
disable operations of control keys. This switch cannot be
unlocked without the key provided with the DRM-7000/DRM-
3000, and if the system administrator will always keep this
key, it is impossible that ordinary users without key perform
unauthorized operations from the control panel.
It is also possible to restrict the range of operations which
are performed from the control panel. It means that a part of
system administrator’s privileges is controlled by the
command issued from the host computer and even if a
system administrator has the key, the host computer makes
it impossible to open the access doors, exchange discs, or
perform other unfavorable operations for itself.
OFFLINE MEDIA MANAGEMENT
The DRM-7000/DRM-3000 provides the following features
which makes it perfect for the management of offline media.
¶
Removable disc magazines
Disc magazines may be removed from the changer with
the discs left in the magazines. The use efficiency of the
space within the changer may much improve if the
infrequently used discs are collected in one magazine and
it is taken out from the changer into the offline storage.
¶
Unique disc magazine IDs
All disc magazines used in the DRM-7000/DRM-3000 are
assigned unique ID codes which makes it possible to
identify individual magazines simply by inserting them into
the magazine bays.
All of the discs within an inserted magazine become
available immediately no matter which magazine bay it is
inserted into as long as the discs installed in the magazine
have been registered in the database as corresponding to
the magazine ID in question, and the same holds true when
a magazine is inserted into a different changer as long as
the changer in which it is inserted is under the control of
the same database.
¶
Disc magazines designed for easy tracking and control
Removing, inserting or replacing discs in magazines after
they have been removed from a changer may destroy the
correspondence between discs and magazine IDs.
To solve this problem, Pioneer provides 50-disc magazine
which has a locking mechanism to prevent all attempt to
change the status of the magazine outside the changer
and hyper magazine which has a smart memory system
that records all user operations toward its lock/unlock
mechanism so as to make it easier to track and control
the use of offline media.
¶
Registration of changer ID
When a disc magazine has been inserted into a changer
not under the control of the database management
software or into a changer belonging to another system,
the discs within that magazine may be rewritten or may
be replaced with other discs within that changer. Even if
the magazine in question is a locked-type, these
discrepancies between the discs actually contained within
the magazine and the information on those discs stored in
the database may be arise.
In order to prevent such problems from occurring, disc
magazines are designed to record the ID of the changer in
which they are used, and as long as the database has a
list of the IDs of changers controlled under the given
database, it is possible for the database management
software to determine whether or not a inserted disc
magazine has to be reinstalled by checking the changer
ID that may be read with the magazine ID.
However although the DRM-7000/DRM-3000 changer and
disc magazines do provide the features needed for the
management of offline media, it should be noted that the
actual procedures and methods available for the management
of offline media may differ depending on the database
management software and changer control software being
used.
It should further be noted that it is necessary to establish
how to employ controls for the handling of offline media. In
fact if management controls are strict enough, it is even
possible to use normal-type disc magazines which would
ordinarily be unsuited for use in the management of offline
media, in the same way as one would use locked-type disc
magazines.
Summary of Contents for DRM-300
Page 2: ...2 DRC1285 En ...
