Seagate 6450, 6451 manual Acoustics, Reliability, Agency listings, Overall A-weighted Value Idle

Medalist Pro 6450/6451 Product Manual, Rev. B 13

1.15 Acoustics

This table shows the overall A-weighted acoustic sound power and sound pressure levels for the drives. All measurements are generally consistent with ISO document 7779. Acoustic measurements are taken under essentially free-field conditions over a reflecting plane. The drive is oriented with the top cover up for all tests.

Overall A-weighted Value	Idle	Seek
Sound power, typ (bels)	3.6	4.3
Sound power, max (bels)	4.0	4.4
Sound pressure, typ (dBA)	30	34
Sound pressure, max (dBA)	33	34

1.16 Reliability

Read error rates are measured with automatic retries and data correction with ECC enabled and all flaws reallocated. The mean time between failures (MTBF) is measured at nominal power at sea level and an ambient temperature of 25°C.

Nonrecoverable read errors	1 per 1013 bits transferred
Seek errors	1 per 107 physical seeks
Contact start/stops	30,000 cycles
MTBF	300,000 power-on hours
Service life	5 years

1.17 Agency listings

This drives are listed by agencies as follows:

∙Recognized in accordance with UL478 and UL1950

∙Certified to CSA C22.2 No. 220-M1986 and CSA C22.2 No. 950

∙Certified to VDE 0805/05.90 and EN 60950/1.88 as tested by VDE