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SDLT 220 and SDLT 320 Design & Integration Guide CHAPTER 4: Thermal Specifications
81-81148-01 March 2004 4-9
Embedded Bezel
This section lists empirical temperature data from measurements taken while using
the embedded bezel.
Results show certain components running hotter in 320 mode than 220 mode. The
HiFN (compression chip) runs slightly hotter, and the Hydra chips (read channels)
also run hotter. Both of these trends are to be expected as the data transfer rate is
increased from 11 MB/s (220) to 16 MB/s (320). However, most other components
show very little difference between the two modes.
Table 4-3. SDLT 320 versus SDLT 220 with Embedded Bezel, Compression On (2:1)
25 degrees C Ambient 40 degrees C Ambient
Sensor
SDLT
320*
SDLT
220
‡
∆
SDLT
320*
SDLT
220
‡
∆
1 HiFN 57.4 54.4 3.0 72.5 67.7 4.8
2 Hydra 1 61.357.94.477.472.45.0
3 Hydra 2 57.654.82.873.669.34.3
4 Coldfire 38.5 38.3 0.2 53.6 53.3 0.3
5 3.3-5.0 V Reg 49.4 47.9 1.5 64.7 62.4 2.3
6 Front Sensor 32.0 32.0 0.0 47.0 47.0 0.0
7 Rear Sensor 50.2 48.6 1.6 65.8 62.8 3.0
8 Headboard 47.7 48.3 -0.6 62.8 61.8 1.0
9 Qlogic 45.3 44.2 1.1 60.9 59.2 1.7
10 Media Sensor
(Heads)
34.6 34.7 -0.1 50.3 49.5 0.8
* These temperatures measured on SDLT 320 drives.
‡ These temperatures measured on SDLT 320 drives running in 220 read/write mode.
- Copyright 2
- Trademarks 2
- Legal Disclaimers 2
- Contact Information 2
- Revision History 3
- Table of Contents 5
- 81-81148-01 March 2004 vii 7
- List of Tables 9
- List of Figures 11
- Introduction 13
- 1.2 Referenced Documents 14
- 1.3 Related Documents 14
- 1.4 Structure of this Manual 15
- 1.5 Conventions 16
- 1.6 For More Information 17
- 1.7 Reader Comments 17
- 1.8 Quantum Diagnostics Tools 18
- General Drive 19
- Specifications 19
- 2.2 SDLT Product Features 20
- 1 Amber LED 21
- 2 Green LED 21
- 3 Yellow LED 21
- 4 Eject Button 21
- 2.3 Dimensions and Tolerances 22
- 81-81148-01 March 2004 2-5 23
- 2-6 March 2004 81-81148-01 24
- 2.4 Physical Dimensions 25
- Orientation Looks Like This 26
- Typical (Top Side Up) 26
- Left Side Down 26
- Right Side Down 26
- 2.5 Reliability 27
- 2.5.4 Data Integrity 28
- Mechanism 29
- 2.6 Functional Specifications 30
- 81-81148-01 March 2004 2-13 31
- 2-14 March 2004 81-81148-01 32
- 2.6.5 Storage Capacity 33
- 2-16 March 2004 81-81148-01 34
- 81-81148-01 March 2004 2-17 35
- 2.7.2 Air Flow Requirements 36
- 2.7.3 Storage and Shipment 37
- 2.7.4 Altitude 37
- 2-20 March 2004 81-81148-01 38
- ≤ 20 lbs 39
- ≤ 50 lbs 39
- 2-22 March 2004 81-81148-01 40
- 81-81148-01 March 2004 2-23 41
- 2-24 March 2004 81-81148-01 42
- • Cleaning Requested 43
- • Cleaning Required 43
- • Cleaning Tape Expired 43
- SCSI Cleaning Error Reporting 44
- Figure 2-7. Front Panel LEDs 45
- 2-28 March 2004 81-81148-01 46
- Electrical Specifications 47
- 3-2 March 2004 81-81148-01 48
- 3.2 Power Supply Tolerances 49
- 3-4 March 2004 81-81148-01 50
- Thermal Specifications 51
- 4.2 Air Flow Measurements 52
- 81-81148-01 March 2004 4-3 53
- 4-4 March 2004 81-81148-01 54
- 81-81148-01 March 2004 4-5 55
- 4-6 March 2004 81-81148-01 56
- 81-81148-01 March 2004 4-7 57
- SDLT 320 58
- Embedded Bezel 59
- Library Bezel 60
- Regulatory Requirements 61
- 5.1.2 Safety Requirements 62
- 81-81148-01 March 2004 5-3 63
- 5.2.3 Conducted Emissions 64
- 5.2.4 Radiated Emissions 64
- Quantum tape drive products 65
- 5.3 Acoustic Noise Emissions 66
- SCSI and Controller 67
- Interface Specification 67
- 6.2 Setting the SCSI ID 68
- 81-81148-01 March 2004 6-3 69
- 6-4 March 2004 81-81148-01 70
- 6.3 Hardware (Connectors) 71
- 6.4 SCSI Stub Lengths 72
- 6.5 SCSI Cable Length 72
- 6.6 Power On Self Test 73
- 6.7 SCSI Command Timeout 73
- 6-8 March 2004 81-81148-01 74
- 6.8 SCSI and Power Connectors 75
- • Connector body: 51110-0850 76
- Figure 6-4. Loader Connector 76
- (Internal Version Shown) 76
- 81-81148-01 March 2004 6-11 77
- 6-12 March 2004 81-81148-01 78
- 81-81148-01 March 2004 6-13 79
- 6-14 March 2004 81-81148-01 80
- 81-81148-01 March 2004 6-15 81
- 6.10 Configuring the Drive 82
- Updating the Firmware 83
- 7.1.2 Making a FUP/CUP Tape 84
- 7.1.3 Using a CUP/FUP Tape 84
- 81-81148-01 March 2004 7-3 85
- Drive Interface 86
- • Updating the same revision 87
- 7-6 March 2004 81-81148-01 88
- Insertion and Extraction 89
- Guidelines 89
- 8.1.1 General Status Packet 90
- 8.1.2 Loading a Tape 91
- 8.1.3 Unloading a Tape 92
- Configuration) 93
- 81-81148-01 March 2004 8-7 95
- Insertion Depth 97
- Cartridge Insertion Force 97
- Insertion Velocity 97
- Debounce Time 98
- Initialization Time 98
- 81-81148-01 March 2004 8-11 99
- Eject Distance 100
- Cartridge Extraction Force 100
- Extraction Velocity 100
- 81-81148-01 A02 102
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