User guide

DiscView PRO User Guide
A-8
Unable to See CD Drives Attached to a
DiscPort Host
In normal operation, the attached CD drives should appear as
available drives, or a CD title. First, verify the drives are
SCSI-II compatible. Next, verify that each drive has a differ-
ent SCSI ID. No drive can use ID 7, since it is used by the
DiscPort.
If you are unable to see the CD drives attached, verify that
the BIOS version of your DiscPort host is less than or equal to
the version of DiscView server components that are installed.
This is accomplished by selecting the DiscPort host from the
Map window, then right-clicking and selecting More Info
from the pop-up menu. When the Host Information dialog box
appears, click on the Details tab. The version listed in ROM
Version should not be greater than the version of the Server
Components running on the fileserver. For example, if the
ROM version reads 2.52a, but the Server Components are
2.30a, you will not be able to see CD-ROM drives attached.
The next step is to verify the DiscPort host status. This is
done by examining the status light, which is the light farthest
from the SCSI port on the DiscPort host. The normal indica-
tion of a DiscPort host connected to the fileserver is solid
green. If this light is flashing yellow, count the number of
times that it is flashing. If the DiscPort host is flashing 6
times, this is an indication that there is insufficient termina-
tion power on the SCSI bus.
Ensure the last CD-ROM drive in the SCSI bus is properly
terminated. Also, try different SCSI cables and CD-ROM
drives to verify that a bad drive is not to blame. Make certain
to write down all the changes that are made as you make
them, including termination, along with the result of the
change. It can also be helpful to number all items, such as
cables 1 and 2, and drives 1 and 2. This will help to avoid
confusion as you are replacing or testing items. Also, ensure
the DiscPort host was powered on after the CD-ROM drives
were powered up. The DiscPort host initializes the SCSI bus.