Seagate ST3300457FC Cheetah 15K.5 SCSI Product Manual - Page 17

5.2.1 Seek time Not including controller overhead (msec)1,2 Average Single Track Full Stroke Typical Typical Typical Read 3.5 0.2 6.8 Write 4.0 0.4 7.5 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. 5.2.2 Format command execution time (minutes) [1] Maximum (with verify) Maximum (no verify) ST3300655LW ST3300655LC 120 60 ST3146855LW ST3146855LC 90 45 ST373455LW ST373455LC 60 30 5.2.3 Generalized performance characteristics Sustainable disc transfer rate: Minimum [3] 73 Maximum [3] 125 Mbytes/sec Mbytes/sec SCSI interface data transfer rate (asynchronous): Maximum instantaneous one byte wide 5.0 Maximum instantaneous two bytes wide 10.0 MBytes/sec [3] MBytes/sec [3] Synchronous transfer rate In low voltage differential (LVD) interface mode 5.0 to 320 MBytes/sec Sector Sizes: Default 512 byte user data blocks Variable 512 to 528 bytes per sector in even number of bytes per sector. If n (number of bytes per sector) is odd, then n-1 will be used. Read/write consecutive sectors on a track Flaw reallocation performance impact (for flaws reallocated at format time using the spare sectors per sparing zone reallocation scheme) Average rotational latency Yes Negligible 2.00 msec Notes for Section 5.2. [1] Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). [2] Assumes no errors and no sector has been relocated. [3] Assumes system ability to support the rates listed and no cable loss. Cheetah 15K.5 SCSI Product Manual, Rev. J 11