Sony rmo-s591 Manuel D’Utilisation
Chapter 1 Introduction
5
Chapter 1 Introduction
Overview
Features
The RMO-S594-DW/S591-DW Magneto-Optical
Disk Unit has the following features:
• Magneto-optical technology enables repeated
Disk Unit has the following features:
• Magneto-optical technology enables repeated
writing and erasing of data on the disk.
• The disk unit automatically senses the type of
disk being inserted, enabling the free use of
both 650-Mbytes (594-Mbytes), 1.3-Gbytes
(1.2-Gbytes) and 2.6 Gbytes (2.3 Gbytes)disks
indifferently.
both 650-Mbytes (594-Mbytes), 1.3-Gbytes
(1.2-Gbytes) and 2.6 Gbytes (2.3 Gbytes)disks
indifferently.
• Direct-Overwrite MO disks can be used. The
writing performance of this disk unit is 1.5 to
2.0 times faster than that of the earlier MO Disk
Unit.
2.0 times faster than that of the earlier MO Disk
Unit.
• A maximum of 2.6 Gbytes (1,024 bytes/sector)
or 2.3 Gbytes (512 bytes/sector) of data can be
written on the two sides of a 5.25-inch magneto-
optical disk. This is equivalent to about 1600–
1800 times the capacity of a conventional 3.5-
inch floppy disk (2HD).
written on the two sides of a 5.25-inch magneto-
optical disk. This is equivalent to about 1600–
1800 times the capacity of a conventional 3.5-
inch floppy disk (2HD).
• Any disk conforming to the internationally
accepted CCS (continuous/composite servo) or
CCW (continuous composite write-once) format
can be used in this disk unit.
CCW (continuous composite write-once) format
can be used in this disk unit.
• This disk unit employs SCSI-2 (Small
Computer System Interface-2).
• The 3,600 min
-1
(3,600 rpm) high-speed
spindle motor enables data transfer rates of
2.03 – 4.06 Mbytes/s (1,024 bytes/sector) or
1.78 – 3.56 Mbytes/s (512 bytes/sector).
2.03 – 4.06 Mbytes/s (1,024 bytes/sector) or
1.78 – 3.56 Mbytes/s (512 bytes/sector).
• The low-profile, light-weight optical pick-up
yields average seek times of 25ms.
• Use of a highly reliable error correction code
(ECC) system keeps the error rate as low as
10
10
-12
.
• Optimum operation environment is provided
through use of a large, 4MB(S594-DW)/
1MB(S591-DW) buffer and optimized cache
control algorithm. (Write cache can be enabled
or disabled. For details, see “Setting the Disk
Unit’s Functions” on page 11.)
1MB(S591-DW) buffer and optimized cache
control algorithm. (Write cache can be enabled
or disabled. For details, see “Setting the Disk
Unit’s Functions” on page 11.)