Hitachi HTS541010G9AT00 Specifications - Page 30
Drive ready time, Operating modes
UPC - 000061425019
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4.4.2.4 Average latency Table 9: Latency Time Rotational speed (RPM) 5400 Time for one revolution (ms) 11.1 Average latency (ms) 5.5 4.4.3 Drive ready time Table 10: Drive ready time Condition Typical (sec) Power on to ready 3.5 Maximum (sec) 9.5 Ready Power on The condition in which the drive is able to perform a media access command (for example- read, write) immediately. This includes the time required for the internal self diagnostics. Note: Max Power On to ready time is the maximum time period that Device 0 waits for Device 1 to assert PDIAG 4.4.4 Operating modes Table 11: Description of operating modes Operating mode Spin-up Seek Write Read Performance Idle Active Idle Low Power Idle Standby Sleep Description Start up time period from spindle stop or power down. Seek operation mode Write operation mode Read operation mode The device is capable of responding immediately to media access requests. All electronic components remain powered and the servo remains operational. The device is capable of responding immediately to the media access requests. Some circuitry including servo system and Read/Write electronics - is in power saving mode. The head is parked near the mid-diameter the disk without servo control. A device in Active idle mode may take longer to complete the execution of a command because it must activate the circuitry. The head is unloaded onto the ramp position. The spindle motor is rotating at full speed. Actuator is unloaded and spindle motor is stopped. Command can be received immediately. TActuator is unloaded and spindle motor is stopped. Only soft reset or hard reset can change the mode to standby. Note: Upon power down or spindle stop a head locking mechanism will secure the heads in the OD parking position. Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification 18