Product manual
Table Of Contents
- Barracuda 18FC Disc Drive
- ST118273FC
- Product Manual, Volume 1
- Barracuda 18FC Disc Drive
- ST118273FC
- Product Manual, Volume 1
- Revision status summary sheet
- Contents
- 1.0 Scope 1
- 2.0 Applicable standards and reference documentation 3
- 3.0 General description 5
- 4.0 Performance characteristics 9
- 5.0 Reliability specifications 13
- 6.0 Physical/electrical specifications 19
- 7.0 Defect and error management 25
- 8.0 Installation 27
- 9.0 Interface requirements 33
- 9.1 FC-AL features 33
- 9.1.1 Fibre Channel link service frames 33
- 9.1.2 Fibre Channel task management functions 33
- 9.1.3 Fibre Channel task management responses 33
- 9.1.4 Fibre Channel port login 34
- 9.1.5 Fibre Channel port login accept 35
- 9.1.6 Fibre Channel Process Login (PRLI) 35
- 9.1.7 Fibre Channel Process Accept (ACC) 35
- 9.1.8 Fibre Channel fabric login 36
- 9.1.9 Fibre Channel fabric accept login 37
- 9.1.10 Fibre Channel Arbitrated Loop options 38
- 9.2 Dual port support 38
- 9.3 SCSI commands supported 39
- 9.4 Miscellaneous operating features and conditions 45
- 9.5 FC-AL physical interface 46
- 9.5.1 Physical characteristics 46
- 9.5.2 Connector requirements 47
- 9.5.3 Electrical description 48
- 9.5.4 Pin descriptions 48
- 9.5.5 FC-AL transmitters and receivers 49
- 9.5.6 Power 49
- 9.5.7 Fault LED Out 49
- 9.5.8 Active LED Out 49
- 9.5.9 Enable port bypass signals 50
- 9.5.10 Motor start controls 50
- 9.5.11 SEL_6 through SEL_0 ID lines 50
- 9.6 Signal characteristics 52
- 9.1 FC-AL features 33
- 10.0 Seagate Technology support services 55
- List of Figures
- Figure 1. Barracuda 18FC family disc drive 1
- Figure 2. Barracuda 18FC disc drive 5
- Figure 3. Typical Barracuda 18FC drive +12V current profile 20
- Figure 4. Mounting configuration dimensions 23
- Figure 5. Physical interface 27
- Figure 6. LED indicator connector 28
- Figure 7. Air flow 29
- Figure 8. PCBA temperature measurement locations 30
- Figure 9. HDA case temperature measurement location 30
- Figure 10. Physical interface 46
- Figure 11. Port bypass circuit physical interconnect 46
- Figure 12. FC-AL SCA device connector dimensions 47
- Figure 13. J6 connector dimensions 47
- Figure 14. FC-AL transmitters and receivers 49
- Figure 15. Transmit eye diagram 53
- Figure 16. Receive eye diagram 53
- Contents
- 1.0 Scope
- 2.0 Applicable standards and reference documentation
- 3.0 General description
- 4.0 Performance characteristics
- 4.1 Internal drive characteristics
- 4.2 Seek performance characteristics
- 4.3 Start/stop time
- 4.4 Prefetch/multi-segmented cache control
- 4.5 Cache operation
- 1. Drive transfers to the initiator the first logical block requested plus all subsequent contigu...
- 2. When a requested logical block is reached that is not in any segment, the drive fetches it and...
- 3. The drive prefetches additional logical blocks contiguous to those transferred in step 2 above...
- 1. The drive fetches the requested logical blocks from the disc and transfers them into a segment...
- 2. The drive prefetches additional logical blocks contiguous to those transferred in Case A, step...
- 4.5.1 Caching write data
- 5.0 Reliability specifications
- 6.0 Physical/electrical specifications
- 6.1 AC power requirements
- 6.2 DC power requirements
- Table 1: DC power requirements
- [1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these ...
- [2] A –10% tolerance is allowed during initial spindle start but must return to ±5% before reachi...
- [3] See +12V current profile in Figure 3.
- [4] This condition occurs when the Motor Start option is enabled and the drive has not yet receiv...
- [5] See paragraph 6.2.1, “Conducted noise immunity.” Specified voltage tolerance includes ripple,...
- [6] Operating condition is defined as random seek reads of 64 blocks.
- [7] All power saving features enabled.
- [8] During idle, the heads are relocated every 60 seconds to a random location within the band fr...
- 1. Minimum current loading for each supply voltage is not less than 4% of the maximum operating c...
- 2. The +5V and +12V supplies should employ separate ground returns.
- 3. Where power is provided to multiple drives from a common supply, careful consideration for ind...
- 6.2.1 Conducted noise immunity
- 6.2.2 Power sequencing
- 6.2.3 Current profiles
- 6.3 Power dissipation
- 6.4 Environmental limits
- a. Operating
- b. Non-operating
- a. Operating
- b. Non-operating
- a. Operating
- b. Non-operating
- a. Operating (normal)
- b. Operating (abnormal)
- c. Non-operating
- d. Packaged
- a. Operating (normal)
- b. Operating (abnormal)
- c. Non-operating
- 7.0 Defect and error management
- 8.0 Installation
- 8.1 Drive ID/option selection
- 8.2 LED connections
- Figure 5. Physical interface
- [1] The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an ex...
- [2] An external current-limiting resistor is required when connecting an LED to this pin. The min...
- [3] Jumper storage location (across pins 2 and 4).
- 8.2.1 J6 connector requirements
- 8.3 Drive orientation
- 8.4 Cooling
- 8.5 Drive mounting
- 8.6 Grounding
- 9.0 Interface requirements
- 9.1 FC-AL features
- No
- Yes
- Yes
- Yes
- Yes
- 00
- 04
- 05
- 9.1.4 Fibre Channel port login
- 9.1.5 Fibre Channel port login accept
- 9.1.6 Fibre Channel Process Login (PRLI)
- 9.1.7 Fibre Channel Process Accept (ACC)
- 9.1.8 Fibre Channel fabric login
- 9.1.9 Fibre Channel fabric accept login
- 9.1.10 Fibre Channel Arbitrated Loop options
- 9.2 Dual port support
- 9.3 SCSI commands supported
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- N
- N
- Y
- N
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- N
- Y
- Y
- Y
- N
- Y
- Y
- Y
- Y
- N
- Y
- Y
- Y
- N
- N
- N
- N
- N
- N
- Y
- N
- Y
- N
- N
- Y
- Y
- Y
- N
- Y
- N
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- N
- Y
- N
- N
- N
- Y
- Y
- N
- N
- N
- N
- N
- Y
- Y
- Y
- N
- Y
- N
- Y
- N
- Y
- Y
- N
- N
- N
- Y
- N
- N
- N
- [1] Barracuda 18FC drives can format to any multiple of four bytes per logical block in the range...
- [2] Warning. Power loss during flash programming can result in firmware corruption. This usually ...
- [3] Reference Mode Sense command 1Ah for mode pages supported.
- 9.3.1 Inquiry data
- 9.3.2 Mode Sense data
- A7
- 00
- 10
- 08
- 02
- 1E
- B3
- 90
- 00
- 00
- 02
- 00
- <------------------------------------------------ Mode sense pages data -------------------------...
- DEF
- 81
- 0A
- C0
- 0C
- E8
- 00
- 00
- 00
- 05
- 00
- FF
- FF
- CHG
- 81
- 0A
- FF
- FF
- 00
- 00
- 00
- 00
- FF
- 00
- FF
- FF
- DEF
- 82
- 0E
- 80
- 80
- 00
- 00
- 00
- 00
- 00
- 00
- 02
- 2B
- 00
- 00
- 00
- 00
- CHG
- 82
- 0E
- FF
- FF
- 00
- 00
- 00
- 00
- 00
- 00
- FF
- FF
- 00
- 00
- 00
- 00
- DEF
- 83
- 16
- 34
- 80
- 00
- 00
- 00
- 11
- 00
- 00
- 00
- ED
- 02
- 00
- 00
- 01
- 00
- 24
- 00
- 34
- 40
- 00
- 00
- 00
- CHG
- 83
- 16
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 84
- 16
- 00
- 1D
- 4D
- 14
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 1C
- 09
- 00
- 00
- CHG
- 84
- 16
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 87
- 0A
- 00
- 0C
- E8
- 00
- 00
- 00
- 00
- 00
- FF
- FF
- CHG
- 87
- 0A
- 0F
- FF
- 00
- 00
- 00
- 00
- 00
- 00
- FF
- FF
- DEF
- 88
- 12
- 10
- 00
- FF
- FF
- 00
- 00
- FF
- FF
- FF
- FF
- 80
- 03
- 00
- 00
- 00
- 00
- 00
- 00
- CHG
- 88
- 12
- B5
- 00
- 00
- 00
- FF
- FF
- FF
- FF
- 00
- 00
- A0
- FF
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 8A
- 0A
- 02
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- CHG
- 8A
- 0A
- 03
- F1
- 08
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 99
- 06
- 00
- 00
- 00
- 00
- 00
- 00
- CHG
- 99
- 06
- 00
- 3F
- 00
- 00
- 00
- 00
- DEF
- 9A
- 0A
- 00
- 03
- 00
- 00
- 00
- 01
- 00
- 00
- 00
- 04
- CHG
- 9A
- 0A
- 00
- 03
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 9C
- 0A
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 01
- CHG
- 9C
- 0A
- 8D
- 0F
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- 00
- DEF
- 80
- 02
- 00
- 00
- CHG
- 80
- 02
- 37
- 40
- <--- Read capacity data --->
- 02
- 1E
- B3
- 8F
- 00
- 00
- 02
- 00
- Y
- Y
- N
- N
- Y
- N
- Y
- Y
- Y
- Y
- N
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- Y
- 9.5 FC-AL physical interface
- Figure 10. Physical interface
- 9.5.1 Physical characteristics
- 9.5.2 Connector requirements
- 9.5.3 Electrical description
- 9.5.4 Pin descriptions
- 9.5.5 FC-AL transmitters and receivers
- 9.5.6 Power
- 9.5.7 Fault LED Out
- 9.5.8 Active LED Out
- 9.5.9 Enable port bypass signals
- 9.5.10 Motor start controls
- 9.5.11 SEL_6 through SEL_0 ID lines
- 9.6 Signal characteristics
- 9.5 FC-AL physical interface
- 10.0 Seagate Technology support services
6 Barracuda 18FC Product Manual, Rev. B
3.1 Standard features
Barracuda 18FC
drives have the following standard features:
• Integrated dual port FC-AL controller
• Concurrent dual port transfers
• Support for FC arbitrated loop and private loop attachment
• Differential copper FC drivers and receivers
• Downloadable firmware using the FC-AL interface
• Drive selection ID and configuration options are set on the FC-AL backpanel or through interface com-
mands. Jumpers are not used on the drive.
• Fibre Channel worldwide name uniquely identifies the drive and each port
• User-selectable logical block size (512 to 4,096 bytes)
• Selectable frame sizes from 128 to 2,112 bytes
• Industry standard 3.5-inch half height form factor dimensions
• Programmable logical block reallocation scheme
• Flawed logical block reallocation at format time
• Programmable auto write and read reallocation
• Reed-Solomon error correction
• Sealed head and disc assembly (HDA)
• No preventive maintenance or adjustments required
• Dedicated head landing zone
• Automatic shipping lock
• Embedded Grey Code track address to eliminate seek errors
• Self-diagnostics performed at power on
• 1:1 interleave
• Zone bit recording (ZBR)
• Vertical, horizontal, or top down mounting
• Dynamic spindle brake
• 1,024 Kbyte data buffer (see Section 4.5)
• Embedded servo design
• Supports SCSI enclosure services via interface connector
• Supports up to 32 initiators
• Reallocation of defects on command (Port Format)
• Fibre Channel interface transports SCSI protocol
3.2 Media description
The media used on the drive has a diameter of approximately 95 mm (approximately 3.7 inches). The alumi-
num substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for
improved durability and environmental protection.
3.3 Performance
• Programmable multi-segmentable cache buffer
• 106 Mbytes/sec maximum instantaneous data transfers per port
• 7,200 RPM spindle; average latency = 4.17 msec
• Command queuing of up to 128 commands
• Background processing of queue
• Supports start and stop commands
• Adaptive seek velocity; improved seek performance