Seagate ST9250412AS Momentus 7200.3 SATA Product Manual - Page 11

Table 1: Drive specifications Drive specification ST9320421AS ST9320421ASG Load/Unload (U/UL) cycles ST9250421AS ST9250421ASG ST9200421AS ST9200423ASG ST9160411AS ST9160411ASG ST9120411AS ST9120411ASG ST980411AS ST980411ASG 25°C, 50% relative humidity 600,000 software-controlled power on/off cycles 50,000 hard power on/off cycles 32°C, 80% relative humidity 5°C, 80% relative humidity 5°C, 10% relative humidity 55°C, 16% relative humidity Warranty Supports Hotplug operation per Serial ATA Revision 2.6 specification 600,000 software-controlled power on/off cycles 50,000 hard power on/off cycles 5 years on distribution units. To determine the warranty for a specific drive, use a web browser to access the following web page: www.seagate.com/support/service/ From this page, click on the "Verify Your Warranty" link. You will be asked to provide the drive serial number, model number (or part number) and country of purchase. The system will display the warranty information for your drive. Yes (requires COMRESET from host after a hotplug event) *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. **During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels. ***Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption. 2.2 Formatted capacity Model ST9320421AS and ST9320421ASG ST9250421AS and ST9250421ASG ST9200421AS and ST9200423ASG ST9160411AS and ST9160411ASG ST9120411AS and ST9120411ASG ST980411AS and ST980411ASG Formatted capacity* 320 Gbytes 250 Gbytes 200 Gbytes 160 Gbytes 120 Gbytes 80 Gbytes Guaranteed sectors 625,142,448 488,397,168 390,721,968 312,581,808 234,441,648 156,301,488 Bytes per sector 512 512 512 512 512 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.2.1 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n-1, where n is the number of guaranteed sectors as defined above. See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes. Momentus 7200.3 SATA Product Manual, Rev. C 5