Seagate ST9160511NS, ST9500530NS manual Following web

Drive specification	ST9500530NS	ST9160511NS
Drive acoustics, sound power (bels)
Active	2.6 (typical)	2.5 (typical)
Idle**	2.3 (typical)	2.1 (typical)
Nonrecoverable read errors	1 sector per 1015 bits read
Annualized Failure Rate (AFR)	0.73%
Warranty	To determine the warranty for a specific drive, use a web browser to access the
	following web page
	:http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance
	From this page, click on the “Verify Your Warranty” link. You will be asked to pro-
	vide the drive serial number, model number (or part number) and country of pur-
	chase. The system will display the warranty information for your drive.
Motor start-stop cycles	50,000
(25°C, 50% rel. humidity)
Supports Hotplug operation per	Yes
Serial ATA Revision 2.5 specification

*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.

Constellation Serial ATA Product Manual, Rev. D 7