Cheetah 18FC Installation Guide, Rev. A

15

Characteristics

ST118202FC

 

Interface

Fibre Channel

 

Capacity

 

 

Unformatted (Gbytes)

22.54

 

Formatted (Gbytes)1

18.2

 

Recording

 

 

Cylinders (user)

6,962

 

Read/write data heads

24

 

Avg bytes/track

104,840 to 159,008

 

Access time

 

 

Average read (msec)

5.9

 

Average write (msec)

6.7

 

Disc rotation

 

 

RPM

10,025

 

Average latency (msec)

2.99

 

Data transfer rate

 

 

Maximum instantaneous

106.3

 

(Mbytes/sec per port)

 

 

1.The specified formatted capacities are calculated with the standard OEM sec- tor size (512 bytes per logical block) and sparing.

ST118202FC

DC power requirements(±5%)1

+5 V

+12 V

Maximum start current

0.76A

3.2A

Maximum operating current

0.80A

1.41A

Average idle current

0.70A

1.25A

1.For more detailed power information, refer to the Cheetah 18FC Product Man- ual, publication number 83329330.

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Seagate 18FC manual Characteristics ST118202FC