Specifications: Seagate 18.2-GB ST118202FC Cheetah 18FC Fibre Channel Hard-Disk Drive
|
| General | Functionality | Internal Drive
Characteristics | Reliability
| Electrical | Heat/Power Dissipation
| Shock | Physical
| Regulatory | Features |
 |
NOTE: These specifications
are provided by the manufacturer for information
purposes only and do not constitute an extension
of Dell's warranty to you. Dell's warranty is
contained in the end user documentation. |
|
|
| Manufacturer |
Seagate |
| Model number |
ST118202FC |
| Model name |
Cheetah 18FC |
| Interface |
FC-AL |
|
| Capacity (formatted) |
18.2 GB |
| Rotational speed |
10,025 rpm |
| Average rotational frequency |
2.99 ms |
| Interleave factor |
1:1 |
| Spin-up time |
30 sec |
| Stop time |
<30 sec |
| Multisegmented cache |
967.5 KB |
| Seek time (including controller
overhead): |
|
Read
|
6.0 ms (typical) |
Write
|
6.8 ms (typical) |
| Data buffer to/from disc media |
23.9 MB/sec (average) |
| Fibre Channel interface maximum
instantaneous transfer rate |
106 MB/sec per port
(dual port = 212 MB/sec) |
|
| Read/write heads |
24 |
| Bytes per track |
104,840 to 159,008 |
| Megabytes per surface |
939 |
| Tracks per surface |
6962 |
|
| MTBF |
1,000,000 POH |
| Service life |
5 years |
| Preventive maintenance |
none required |
| Data errors: |
|
Seek error rate
|
<10 in 108 |
Unrecovered data
|
<1 sector in 1015 bits
transferred |
Miscorrected data
|
<1 sector in 1021 bits
transferred |
Error correction
|
96-bit Reed Solomon |
| SMART-compliant |
yes |
|
| Voltages |
+5 VDC (� 5%)
+12 VDC (� 5%) |
|
| Typical seek/read DC power dissipation |
20.5 W (70 BTU/hr) |
| Typical power dissipation (idle state) |
18.4 W (63 BTU/hr) |
|
| Operating: |
|
Normal (error-free operation)
|
2 G |
Abnormal (damage-free operation)
|
10 G |
| Nonoperating |
50 G |
| * Half-sine wave, 11-ms maximum
duration |
|
| Height |
40.64 mm (1.6 inches) |
| Width |
101.6 mm (4.0 inches) |
| Depth |
146.1 mm (5.75 inches) |
| Weight |
0.91 kg (2.0 lb) |
- UL 1950
- CSA standard CAN/CSA C22.2 No. 950-95
- VDE0805 and EN60950
- Integrated dual-port FC-AL controller
- Concurrent dual-port transfers
- Support for FC arbitrated loop and private and
public loop attachment
- Differential copper FC drivers and receivers
- Firmware downloadable using the FC-AL interface
- Drive selection ID and configuration options are
set on the FC-AL back panel or through interface
commands
- Fibre Channel worldwide name uniquely identifies
the drive and each port
- User-selectable logical block size (512 to 4096
bytes per logical block)
- Selectable frame sizes from 128 to 2112 bytes
- Industry-standard 3.5-inch low-profile form
factor dimensions
- Programmable logical block reallocation scheme
- Flawed logical block reallocation at format time
- Programmable autowrite and read
reallocation
- 96-bit Reed-Solomon error
correction code
- Sealed head and disc assembly (HDA)
- No preventive maintenance or adjustments required
- Dedicated head-landing zone
- Automatic shipping lock
- Embedded Grey Code track address
- Self-diagnostics performed at power-on
- 1:1 interleaving factor
- Zone bit recording (ZBR)
- Vertical, horizontal, or top-down mounting
- Dynamic spindle brake
- 1024-KB data buffer
- Embedded servo design
- Supports SCSI enclosure services via interface
connector
- 128-deep task set (queue)
- Supports up to 32 initiators
- Reallocation of defects on command (post format)
- Fibre Channel interface transports SCSI protocol
- Supports SCSI Enclosure Services through the
interface connector
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