Performance Characteristics; Internal Drive Characteristics; Seek Performance; Access Time - Seagate CHEETAH NS 10K.2 FC ST3600002FC Product Manual

4.0

Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of
Cheetah NS 10K.2 FC drives.
4.1

Internal drive characteristics

Drive capacity*
Read/write data heads
Tracks per inch
Peak bits per inch
Areal density
Internal data rate
disk rotation speed
Avg rotational latency
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
4.2

Seek performance

See Section 9.5, "FC-AL physical interface" on page 64 and the Fibre Channel Interface Manual (part number
77767496) for additional timing details.
4.2.1

Access time

Average Typical
Single track Typical
Full stroke Typical
1. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as
measured on a representative sample of drives.
2. Access to data = access time + latency time.
Cheetah NS 10K.2 FC Product Manual, Rev. B
ST3600002FC ST3450802FC ST3300602FC
600 450
8 6
165,000 165,000
1,347 1,347
225 225
1.01 to 1.84 1.01 to 1.84
10k 10k
2.98 2.98
Not including controller overhead
Read
3.8
0.22
8.1
300 Gbytes (formatted, rounded off value)
4
165,000 TPI
1,347 kBPI
225 Gbits/inch
1.01 to 1.84 Gbits/sec (variable with zone)
10k rpm
2.98 msec
1 2
,
(msec)
Write
4.4
0.22
8.7
2
11