Cheetah X15 - ST318451FC Product Family






	Seagate continues its lead in Enterprise Storage. The Cheetah X15 is the newest addition to the fourth generation Cheetah family, consisting of the Cheetah 18XL, 36LP and 73. Cheetah X15 is industry's first 15K-RPM product delivering the fastest seek times in the world, 3.9 msec! The Cheetah X15 is available in the popular 18.4 Gbyte capacity, with Ultra160 SCSI and 2 Gb FC interfaces. The Cheetah X15's low acoustics and power consumption allow easy integration for highest performance!

	Models


		ST318451LW ST318451LC ST318451LCV ST318451LWV ST318451FC ST318451FCV

	Capacity and Interface

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

	Performance

	Internal Transfer Rate, Min/Max (Mbits/sec)	395/492
	Internal Formatted Transfer Rate Min/Max (Mbytes/sec)	38/47.4
	External Transfer Rate (mbytes/sec)
	Ultra 8,16 bit/Ultra2/Fibre Channel (per loop)	160 200
	Track-to-track Seek Read/Write (msec)	0.5/0.7
	Average Seek Read/Write (msec)	3.9/4.5
	Average Latency (msec)	2
	Spindle Speed (RPM)	15K

	Configuration/Organization

	Discs/Heads	5/10
	Sectors per Drive (512 bytes per sector)	35843670
	Cylinders	10377
	Recording Method	NPV

	Reliability/Data Integrity

	S.M.A.R.T. capable	Yes
	Recoverable Read Errors per Bits Read	10 per 10¹⁵
	Nonrecoverable Read Errors per Bits Read	1 per 10¹²
	Seek Errors (per seek)	10 per 10¹²

	Power Requirements

	+12 VDC +/-5% (amps typ operating)
	+5 VDC +/-5 % (amps typ operating)
	Ultra SCSI, Ultra2 SCSI [FC]	{}
	Power (Idle watts)
	Ultra SCSI/Ultra2 SCSI [FC]	11 12.5

	Environmental

	Idle Acoustics (max Bels)	3.9
	Operating Temperature (°C)	5 to 55
	Nonoperating Temperature (°C)	70 to -40
	Operating Shock (Gs) @ 11 msec	15
	NonOperating Shock (Gs) @ 2 msec	250
	Operating Vibration (Gs @ 5-350 Hz)	0.75
	Nonoperating Vibration (<350Hx)	2

	Physical

	Height (mm)	25.4
	Width (mm)	101.6
	Depth (mm)	146
	Weight (kg)	0.73

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