Seagate ST9146853SS Savvio 15K.1 FC User Guide - Page 19
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 ST973451FC Drive capacity 73.4 Read/write data heads 4 Tracks per surface (total) 42,554 Tracks per inch 150 Peak bits per inch 861.81 Areal Density 130.58 Internal data rate 957.51 to 1,282.08 Sustained data transer rate 57-89 Disc rotation speed 15k Avg rotational latency 2.0 ST936751FC 36.2 2 42,554 150 861.81 130.58 957.51 to 1,282.08 57-89 15k 2.0 Gbytes (formatted, rounded off value) Tracks (user accessible) kTPI (average) kBPI Gbit/in2 Mbits/sec (variable with zone) Mbytes/sec (variable with zone) revolutions/min (RPM) msec 4.2 Seek performance characteristics See Section 9.5, "FC-AL physical interface" on page 57 and the Fibre Channel Interface Manual (part number 100293070) for additional timing details. 4.2.1 Access time Average Typical3,4 Not Including controller overhead1, 2 (msec) Read Write 2.6 3.1 Single track Typical3,4 0.2 0.4 Full stroke Typical3,4 4.9 5.5 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, volt- age, and horizontal orientation as measured on a representative sample of drives. 4. Access to data = access time + latency time. Savvio 15K.1 FC Product Manual, Rev. B 11