Seagate ST9900705SS Savvio 10K.1 FC Product Manual - Page 17
Performance characteristics
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4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Savvio drives. 4.1 Internal drive characteristics ST973401FC ST936701FC Drive capacity 73.4 36.7 Read/write data heads 4 2 Bytes per track 360,000 360,000 Bytes per surface 18,387 18,387 Tracks per surface (total) 51,052 51,052 Tracks per inch 105 105 Peak bits per inch 660 660 Internal data rate 506-753 506-753 Disc rotation speed 10,009 10,009 Avg rotational latency 3.00 3.00 Gbytes (formatted, rounded off value) Bytes (average, rounded off values) Mbytes (unformatted, rounded off value) Tracks (user accessible) KTPI KBPI Mbits/sec (variable with zone) revolutions/min (RPM) msec 4.2 Seek performance characteristics See Section 9.5, "FC-AL physical interface" on page 60 and the Fibre Channel Interface Manual (part number 77767496) for additional timing details. 4.2.1 Access time Average Typical3,4 Including controller overhead1, 2 (msec) Read Write 4.70 5.10 Not including controller overhead1,2 (msec) Read Write 4.50 4.90 Single track Typical3,4 0.65 0.95 0.45 0.75 Full stroke Typical3,4 8.70 9.10 8.50 8.90 1. Execution time measured from receipt of the FCP Command to the FCP Response. 2. Assumes no errors and no sector has been relocated. 3. Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of drives. 4. Access time = controller overhead + average seek time and applies to all data transfer commands. Access to data = access time + latency time. Savvio FC Product Manual, Rev. D 11