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48
Appendix B: Troubleshooting
Problems When Accessing Disc Changers
Disc changer flutter can occur if a user requests access
to a CD-ROM while a second user is reading data from
another CD-ROM. The changer may repeatedly switch
between the two CD-ROM discs, sending small
bits of data each time, in order to service both users.
Because of the relatively long time needed to change a
CD-ROM, the data transfer rate for both users may
become unacceptably low.
The
JukeBox Lock Time
parameter in the DRM-6NX
configuration file specifies how long a user has exclusive
access to a CD-ROM during a data read operation. This
is to prevent disc change flutter and to optimize the
access speed when many users are reading different
discs in the same changer.
The
JukeBox Lock Time
parameter will ensure that
when there are simultaneous requests for access to
different discs, a sizable block of data is transferred to
each user before the access is changed.
÷
If the
JukeBox Lock Time
parameter is set too low,
the data transfer rate will be unacceptably slow
÷
If the
JukeBox Lock Time
parameter is set too high,
the disc drive will time-out on a second user’s request
before the first user’s transfer is complete. This will
result in users receiving a ‘CD-ROM not available’
notice.
The default setting is 0 seconds which disables this
function.
NOTE:
7
If some drive error occurs during caching/reading, Caching/Reading
is canceled and the drive and discs become disabled. Only by
restarting this product can the condition. be cleared.
Restoring Factory Default Settings
If required, use any of the methods listed below to
restore the factory default settings to a DRM-6NX
(e.g. if you have disabled all network protocols)
÷
Web browser
÷
FTP on a TCP/IP network
÷
Reset button
Step by step instructions for each method are given
below.
NOTES:
7
The node address, the Hardware Address parameter, will remain
unchanged, but all other parameters will be restored. You will thus
need to re-assign the Internet address to re-establish the Web
browser connection.
7
All Cached data in the HDD is cleared when restoring the factory
default setting.
Web Browser
To restore the defaults settings using a Web browser:
1. Start the Web browser
2. Click
Administration
3. Click
PIONEER Changer
4. Click
Factory Defaults
The factory default setting is restored thrn the DRM-6NX
reboots automatically
FTP
To restore the default settings using FTP:
1. Log in to the DRM-6NX with the command:
ftp <host name>
, where
<host name>
is the name
assigned in your system's host table
2. Enter the user id and password (Use the user id
'root'
which has the default password
'pass'
(
root
is the user id with the highest priority)
3. Restore the default setting with the command:
get defaults
(The unit will then automatically reboot)
4. Log out using one of the commands
quit
,
bye
or
exit
depending upon your FTP version
