Cheetah 73 - ST173404FC Product Family






	Seagate continues its lead in Enterprise Storage. Seagate's fourth generation of Cheetah products include Cheetah 18XL, Cheetah 36LP and the remarkable Cheetah 73. This family of 10,000-RPM drives supports capacities from 9.2 to 73.4 Gbytes in a 3.5-inch form-factor for mainstream and high-performance users. Interface options include, Ultra160 SCSI and the new 2Gbit/sec Fibre Channel. Seagate has increased the Cheetah performance by 45 percent over the previous generation.
	Download PDF version of Cheetah 73

Models


	ST39204LC ST39204LW ST39204FC	ST318404FC ST318404LC ST318404LW	ST336704LW ST336704LC ST336704LWV ST336704LCV ST336704FC ST336704FCV	ST173404FC ST173404LC ST173404LW ST173404FCV ST173404LCV ST173404LWV

Capacity and Interface

Formatted Gbytes (512 bytes/sector)	9.2	18.4	36.7	73.4
Interface	Fibre Channel Ultra160 SCSI	Fibre Channel Ultra160 SCSI	Fibre Channel Ultra160 SCSI	Fibre Channel Ultra160 SCSI

Performance

Internal Transfer Rate, ZBR (Mbits/sec)	284/424	284/424	280/427	280/427
Internal Formatted Transfer Rate (Mbytes/sec)	26.6/40.5	26.6/40.5	26.7/40.2	26.7/40.2
External Transfer Rate (mbytes/sec)
Ultra 8,16 bit/Ultra2/Fibre Channel (per loop)	160 200	160 200	160 200	160 200
Track-to-track Seek Read/Write (msec)	0.6/0.8	0.6/0.8	0.6/0.9	0.6/0.9
Average Seek Read/Write (msec)	5.2/6	5.2/6	5.2/6	5.6/6.2
Average Latency (msec)	2.99	2.99	2.99	2.99
Spindle Speed (RPM)	10000	10000	10000	10000

Configuration/Organization

Discs/Heads	2/3	3/6	6/12	12/24
Sectors per Drive (512 bytes per sector)	17921835	35843670	71685305	143374805
Cylinders	14384	14384	14100	14100
Recording Method	NPV	NPV	NPV	NPV

Reliability/Data Integrity

S.M.A.R.T. capable	Yes	Yes	Yes	Yes
Recoverable Read Errors per Bits Read	10 per 10¹²	10 per 10¹²	10 per 10¹²	10 per 10¹²
Nonrecoverable Read Errors per Bits Read	1 per 10¹⁵	1 per 10¹⁵	1 per 10¹⁵	1 per 10¹⁵
Seek Errors (per seek)	10 per 10⁸	10 per 10⁸	10 per 10⁸	10 per 10⁸
Service Life/Limited Warranty (years)	5/5	5/5	5/5	5/5

Power Requirements

+12 VDC +/-5% (amps typ operating)	0.5	0.5
+5 VDC +/-5 % (amps typ operating)
Ultra SCSI, Ultra2 SCSI [FC]	0.8	0.8	{}	{}
Power (Idle watts)
Ultra SCSI/Ultra2 SCSI [FC]	8 8.5	9 9.5	11 12.5	15.7 16.5

Environmental

Idle Acoustics (max Bels)	3.8	3.8	3.9	4.2
Operating Temperature (°C)	5 to 55	5 to 55	5 to 55	5 to 55
Nonoperating Temperature (°C)	70 to -40	70 to -40	70 to -40	70 to -40
Operating Shock (Gs) @ 11 msec	10	10	10	10
NonOperating Shock (Gs) @ 2 msec	250	250	200	180
Operating Vibration (Gs @ 5-350 Hz)	0.8	0.8	0.5	0.5
Nonoperating Vibration (<350Hx)	2	2	2	2

Physical

Height (mm)	25.4	25.4	25.4	40.6
Width (mm)	101.6	101.6	101.6	101.6
Depth (mm)	146.1	146.1	146	146
Weight (kg)	0.68	0.68	0.6	0.91

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