M
IRAGE
and S
OLOIST
2
DDSN
BROADCAST MPEG 2 PLAYER
Version 3.0
DDSN-Page 1 of 3
ADTEC, Inc. USA
DDSN
DDSN
DDSN APPENDIX
ADVANCED PROTOCOL ITEMS
The Soloist series of products can support up to 8 IDE drives and 7 SCSI
devices, each containing up to 32 logical partitions. Exactly which drive, disc
(or partition), and spot/name you wish to reference is specified by a
DDSN
argument. This differs from Windows and DOS, which use a drive letter
followed by a path, or UNIX, which use a pathname. The
DDSN
argument
represents
D
rive,
D
isc, and
S
pot/
N
ame. The first 8 drives are numbered 0
through 7 and represent the IDE drives, with 0 through 3 for the master drives
(there are 4 internal IDE ports) and 4 through 7 for the slave drives. The last 7
drives are numbered 8 through 14 and represent the SCSI drive IDs 0 through 6
respectively (SCSI ID 7 is the internal controller). Each partition on a hard
drive, or slot in a CD or DVD disc drive, is numbered sequentially from 0 up to
a maximum of 31 (this may increase or decrease in future versions). Finally,
each
DD
(Drive-Disc) may hold up to 500 files in a flat structure (this may
increase or decrease in future versions) numbered 0 through 499. Each file has
an 8.3 DOS style name and extension (path names are removed) and is assigned
a unique spot number, which may be useful to resolve name clashes which result
from pathname removal. Finally, the units may hold a maximum of 64 logical
volumes, the
DD
for
Drive-Disc, and 32,000 files, the
SN
for Spot-Names (this
may increase or decrease in future versions).
Why is this arcane information so important? The reason being that many of
the commands require a Drive-Disc-Spot/Name, or
DDSN
, argument.