Sony smo-s551 Manual De Usuario
Chapter 1 Introduction
19
Chapter 1 Introduction
Overview
Features
The SMO-S551 Magneto-Optical Disk
Subsystem has the following features:
• Magneto-optical technology enables repeated
Subsystem has the following features:
• Magneto-optical technology enables repeated
writing and erasing of data on the disk.
• The subsystem automatically senses the type of
disk being inserted, enabling the free use of
both 650-Mbytes (594-Mbytes), 1.3-Gbytes
(1.2-Gbytes), 2.6 Gbytes (2.3 Gbytes), and 5.2
Gbytes (4.8 Gbytes, 4.1 Gbytes) disks
indifferently.
both 650-Mbytes (594-Mbytes), 1.3-Gbytes
(1.2-Gbytes), 2.6 Gbytes (2.3 Gbytes), and 5.2
Gbytes (4.8 Gbytes, 4.1 Gbytes) disks
indifferently.
• A maximum of 5.2 Gbytes (2,048 bytes/sector),
4.8 Gbytes (1,024 bytes/sector) or 4.1 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 2900–3700 times the
capacity of a conventional 3.5-inch floppy disk
(2HD).
(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 2900–3700 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 subsystem.
CCW (continuous composite write-once) format
can be used in this subsystem.
• This subsystem employs SCSI-2 (Small
Computer System Interface-2).
• The 3,300 min
-1
(3,300 rpm) high-speed spindle
motor enables data transfer rates of 2.48 – 5.07
Mbytes/s (2,048 bytes/sector), 2.31 – 4.79
Mbytes/s (1,024 bytes/sector) or 1.97 – 4.06
Mbytes/s (512 bytes/sector).
Mbytes/s (2,048 bytes/sector), 2.31 – 4.79
Mbytes/s (1,024 bytes/sector) or 1.97 – 4.06
Mbytes/s (512 bytes/sector).
• With disk capacities under 2.6 Gbytes (2.3
Gbytes), the spindle motor rotates at 3600 min
-1
(rpm).
• The low-profile, light-weight optical pick-up
yields average seek times of 25 ms.
• 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, 4 MB buffer and
optimized cache control algorithm. (Write cache
can be enabled or disabled. For details, see
“Setting the Subsystem’s Functions” on page
24.)
optimized cache control algorithm. (Write cache
can be enabled or disabled. For details, see
“Setting the Subsystem’s Functions” on page
24.)