Digital Equipment RWZ52 User Manual
RWZ52 Optical Disk Drive
User's Guide
Order Number: EK-RWZ52-UG. A01
Digital Equipment Corporation
Maynard, Massachusetts
April 1994
The information in this document is subjet to change without notice and should not be construed as a commitment
by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that
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© Digital Equipment Corporation 1992.
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ZK5909
Contents
Drive Characteristics 1-1
Features of the RWZ52 Multifunction Optical Disk Drive.......................................................1-2
Performance Characteristics ....................................................................................................1-3
Media Characteristics..............................................................................................................1-4
Interface..................................................................................................................................1-4
Environmental Specifications..................................................................................................1-5
AC Power Requirements (Standalone).....................................................................................1-5
Reliability and Service.............................................................................................................1-6
Physical Characteristics...........................................................................................................1-6
Setting up the RWZ52 2-1
Preparing the environment.......................................................................................................2-1
Clearance requirements.....................................................................................................2-1
Location requirements ......................................................................................................2-1
Rear panel features..................................................................................................................2-2
To set the SCSI ID............................................................................................................2-3
To set the operation mode.................................................................................................2-4
Connecting to the host computer..............................................................................................2-5
Troubleshooting.......................................................................................................................2-6
Using Optical Disks 3-1
Choosing an optical disk..........................................................................................................3-2
Labeling an optical disk cartridge............................................................................................3-3
Write-protecting an optical disk...............................................................................................3-4
Maintaining an optical disk in good condition ......................................................................... 3-5
Operating the RWZ52 4-1
Identifying front panel features................................................................................................4-2
To manually eject a cartridge ..................................................................................................4-3
Software Applications For The RWZ52 5-1
Product Numbers Options and Supplies A-1
Figures
Rear Panel Features.................................................................................................................2-2
Proper Label Positions............................................................................................................. 3-3
Write-Protect Button Location.................................................................................................3-4
Front Panel Features................................................................................................................4-1
Tables
RWZ52 Supported Options...................................................................................................... 5-2
Optical Library Products Matrix.............................................................................................A-1
Basic Supplies and Reorderable Parts..................................................................................... A-2
Related Documentation.......................................................................................................... A-3
iv
Purpose of This Guide
This guide provides information on setting up and using the RWZ52
Optical Disk Drive.
Who Should Use This Guide
This guide is written for owners and users of the RWZ52 Optical Disk
Drive.
Structure of This Guide
This guide is organized as follows:
Chapter 1: Drive Characteristics - This chapter provides an overview
of the RWZ52 Optical disk drive. Included are tables listing the drive's
physical, environmantal, electrical, reliability, and performance
specifications.
Preface
Chapter 2: Setting up the RWZ52 - Instructions on choosing a location,
configuring the drive, and connecting it to the host computer are
contained in this chapter.
Chapter 3: Using Optical Disks - This chapter explains how to label
and write-protect optical disks. In addition, suggestions are provided for
the proper care and handling of disks.
Chapter 4: Operating the RWZ52 - The front panel features are
described in this chapter. A procedure for manually ejecting a cartridge
is included as well.
v
Chapter 5: Software Applications for the RWZ52 - This chapter
provides a summary of some of the supported software applications and
operating systems available for the RWZ52.
Appendix A: Product Numbers, Options, and Supplies -Tables are
supplied listing part numbers for Digitals family of optical disk products,
order numbers for media and supplies, and order numbers for related
documentation.
vi
Drive Characteristics
This chapter provides information on the following topics:
• product features
• performance characteristics
• media characteristics
• environmental specifications
• power requirements
• service specifications
• physical characteristics
1
1-1
Drive Characteristics
Features of the RWZ52 Multifunction Optical Disk Drive
High Performance
• 23 millisecond average seek time
• 8 millisecond average latency
• 1000 Kbytes/second data transfer rate for reads
• 500 Kbytes/second data transfer rate for writes
• less than 3 second media load and spin-up time
• Digital Signal Processor based servo - intelligent servo system for
faster seeks and lower error rates
• split optics - lighter optical head for faster and more accurate data
access
• caching - full read and write caching for optimizing system
performance
1-2
Industry Standard Compliance
• 5.25 inch industry standard media (ISO and ANSI)
• Continuous composite format
Superior Reliability
• 100,000 hours MTBF (Mean Time Between Failures)
• 1,200,000 MSBF (Mean Swaps Between Failure - Autochanger only)
Performance Characteristics
1.3 GByte Disks
23.5 ms
45 ms
4 ms
2 ms
12.5 ms
36 ms
2400 rpm
Up to 1.6
Mbytes/sec.
Up to 0.8
Mbytes/sec.
5 Mbytes/sec.
3 Mbytes/sec.
512 Kbytes
Read aheads
Reporting Write Re-
ordering
Immediate
Reporting Write Re-
ordering
14
bytes
less than 1 per 10
14
bytes
2.3 sec. avg.
1.4 sec. avg.
3.3 sec. avg.
2.3 sec. avg.
Seek Times
Average Seek 23.5 ms
Full Stroke 45 ms
Short Seek(across 2.2 Mbyte) 5 ms
Single track(track-to-track) 2 ms
Average Latency 8.3 ms
Average Access Time 31.8 ms
Spindle Rotational Speed 3600 rpm
Data Transfer Rates
Reads (max. sustained) 1.0 Mbytes/sec.
Writes (max. sustained) 0.5 Mbytes/sec.
Burst (synchronous) 5 Mbytes/sec.
Burst (asynchronous) 3 Mbytes/sec.
Buffer size 512 Kbytes
Read buffering Read aheads
Write buffering Immediate
Drive Characteristics
650 MByte Disks
Read/Write Error Rate less than 1 per 10
Media Load/Unload Times (Autochanger)
Load (including spin up) 2.8 sec. avg.
Unload (including spin down) 1.4 sec. avg.
Media Load/Unload Times (Standalone)
Load (including spin up) 3.8 sec. avg.
Unload (including spin down) 2.3 sec. avg.
1-3
Drive Characteristics
1.3GByte Disks
(325/side)
1.3 Gbytes (650/side)
(297/side)
1.2 Gbytes (600/side)
10241/512
31/17
21600
37594
Composite
conforming to
ISO/IEC 10089A;
ANSI X3.212
ECMA-184; ISO/IEC
DIS 13549 (draft)
Composite write-
once (CCW)
conforming to
ISO/IEC DIS 11560;
ANSI X3.220
ECMA-184; ISO/IEC
DIS 13549 (draft)
30 years
SCSI-2 single-ended
Media Characteristics
Formatted Capacity
1024 Bytes/sector disks 650 Mbytes
512 Bytes/sector disks 594 Mbytes
Bytes per sector 10241/512
Sector per track 31/17
Physical tracks per surface 18751
Logical tracks per surface 18751
Rewritable media format Continuous
Write-Once media format Continuous
650MByte Disks
Media Life 30 years
Interface
1
Digital supports 512 byte sectors only!
1-4
SCSI-2 single-ended
Environmental Specifications
Shock
Operating (@11 ms) 2 g, transparent
Non-Operating 25 g, no damage
Vibration (5-500Hz)
Operating 0.5 g rms
Non-Operating
Random 3 g rms
Swept-sine 1 g (0 to peak)
Altitude
Operating 7,620 m (25,000 ft.)
Non-Operating 15,300 m (50,000 ft.)
Temperature
Operating 10 degrees to 40 degrees C
Non-Operating -40 degrees to 60 degrees C
Gradient 10 degrees C/hour
Drive Characteristics
Humidity
Operating 5 to 90 percent
Non-Operating 5 to 95 percent
Maximum wet bulb 29 degrees C
AC Power Requirements (Standalone)
Line Voltage 100 to 240 Vac
Line Frequency 50 to 60 Hz
Power Consumption 30 W typical, 50 W maximum
1-5
Drive Characteristics
Reliability and Service
Preventive Maintenance None required
Mean Time Between Failures 100,000 poweron hours
Cartridge load/unload cycles 1,200,000 (autochanger only)
Physical Characteristics
Drive Dimensions (Embedded)
Height 82.5 mm (3.25 in.)
Width 146 mm (5.75 in.)
Depth 203.2 mm (8 in.)
Weight(Net) 2.7 kg. (6.0 lb.)
Drive Dimensions (Standalone)
Height 146 mm (5.8 in.)
Width 174 mm (6.9 in.)
Depth 280 mm (11 in.)
Weight(Net) 4.98 kg. (11 lb.)
Weight(Shipping) 6.33 kg. (14 lb.)
1-6
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