Seagate Enterprise Capacity 3.5 HDD/Savvio 10K Savvio 10K.1 SAS 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 Drive capacity Read/write data heads Bytes per track Bytes per surface Tracks per surface (total) Tracks per inch Peak bits per inch Internal data rate Disc rotation speed Avg rotational latency ST973401SS 73.4 4 360,000 18,387 51,052 105 660 506-753 10k 3.0 ST936701SS 36.7 2 360,000 18,387 51,052 105 660 506-753 10k 3.0 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) rpm msec 4.2 Seek performance characteristics See Section 9.4.1, "SAS physical interface" on page 56 and the SAS Interface Manual (part number 100293071) for additional timing details. 4.2.1 Access time Average Single track Full stroke Typical3,4 Typical3,4 Typical3,4 Including controller overhead1, 2 (msec) Read Write 4.2 4.6 0.40 0.80 8.3 8.8 Not including controller overhead1,2 (msec) Read Write 4.0 4.4 0.20 0.60 8.1 8.6 1. Execution time measured from receipt of the Command to the 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 SAS Product Manual, Rev. D 11