Performance Characteristics; Internal Drive Characteristics; Seek Performance; Access Time - Seagate SAVVIO 10K.5 FC ST9300605FC Product Manual

5.0

Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Sav-
vio 10K.5 FC drives.
5.1

Internal drive characteristics

ST9900805FC
Drive capacity* 900
Read/write data heads 6
Tracks per inch 300,000
Peak bits per inch 1686
Areal density 506
Internal data rate 1.00 to 1.91
disk rotation speed 10K
Avg rotational latency 3.0
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
5.2

Seek performance

See Section 10.5, "FC-AL physical interface" on page 68 and the Fibre Channel Interface Manual (part number
77767496) for additional timing details.
5.2.1

Access time

Not including controller overhead
900GB models
Read
Average 3.7
Single track 0.2
Full stroke 7.7
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.
10
ST9600205FC ST9450405FC
600 450
4 3
300,000 300,000
1686 1686
506 506
1.00 to 1.91 1.00 to 1.91
10K 10K
3.0 3.0
1 2
,
(ms)
600, 450 and 300GB models
Write Read
4.1 3.4
0.4 0.2
8.1 7.1
ST9300605FC
300 GBs (formatted
2
300,000 TPI
1686 kBPI
506 Gb/in2
1.00 to 1.91 Gb/s (ID to OD)
10K rpm
3.0 ms
Write
3.8
0.4
7.4
Savvio 10K.5 FC Product Manual, Rev. D
, rounded off value)