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RZ28B(TM) Disk Drive Data Sheet	

EK-RZ28B-DS. A01	

March 1994	

To install the RZ28B disk drive, refer to any section in your system documenta-	
tion that explains how to install an RZ(TM)-series fixed disk drive. The installation	
procedure is the same for all RZ-series fixed disk drives.
	

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Table 1 RZ28B Disk Drive Specifications	

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Weight	Height	Width	Depth	

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0.99 kg	4.14 cm	10.2 cm	14.6 cm	

(2.00 lb)	(1.63 in)	(4.00 in)	(5.75 in)	

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Drive Formatted Storage Capacity	

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Bytes per drive	2.104 GB (formatted)	
Bytes per surface	131.53 MB	

Buffer size	256 KB	

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Drive Performance	

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Data transfer rate to/from media	3.35 to 5.35 MB/sec	
Seek time track to track	1 msec	

Seek time average	9 msec	

Seek time maximum (full stroke)	19 msec	

Average latency	5.54 msec	

Rotational speed	5400 rpm	

Interleave ratio	1:1	

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Drive Operating Conditions	

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Ambient temperature	5°C to 50°C (41°F to 122°F)	
Relative humidity	8%-80% non-condensing	

Maximum wet bulb	28°C (82°F)	

Temperature gradient	20°C (36°F) per hour	

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Drive Nonoperating Conditions	

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Ambient temperature	-40°C to 70°C (-40°F to 158°F)	
Relative humidity	5%-95% (noncondensing)	

Maximum wet bulb	28°C (82°F)	

Temperature gradient	25°C (77°F) per hour

© Digital Equipment Corporation 1994. All rights reserved.

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