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14
1.15 Acoustics
Sound pressure is measured 1 meter above the drive top cover at idle.
Value
Sound pressure, typ (dBA)
Sound pressure, max (dBA)
1.16 Reliability
Read error rates are measured with automatic retries and data correction
with ECC enabled and all flaws re-allocated. The mean time between
failures (MTBF) is measured at nominal power at sea level and an
ambient temperature of 40 ° C.
Nonrecoverable read errors
Seek errors
Contact start/stops
MTBF
Service life
1.17 Agency listings
This drive is 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
1.18 FCC verification
The ST31270A ATA interface drive is intended to be contained solely
within a personal computer or similar enclosure (not attached to an
external device). As such, a drive is considered to be a subassembly
even when individually marketed to the customer. As a subassembly, no
Federal Communications Commission authorization, verification or cer-
tification of the device is required.
Seagate Technology, Inc. has tested this drive in an enclosure as
described above to ensure that the total assembly (enclosure, disc drive,
motherboard, power supply, etc.) does comply with the limits for a
Medalist 1270 Product Manual, August 1995
Idle
Seek
30
36
33
39
13
1 per 10
bits transferred
7
1 per 10
physical seeks
40,000 cycles
300,000 power-on hours
5 years
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