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c.
EN_PS (Enable Pre-Scan)
"1":
"0":
The background pre-scan feature is enabled by setting the EN_PS bit in the
Background Control mode page, then setting the EN_PS bit and power
cycling the device. After power is restored the pre-scan timer is set and the
device begins scanning the medium starting at LBA zero and ending with the
last LBA.
After one pre-scan processing, IDD do not execute the next pre-scan
processing until the following sequence.
1. EN_PS bit set to '0'
2. EN_PS bit set to '1'
3. Power Off and On
d. BMS Interval Time
This parameter specifies the minimum time, in hours, between the end of one
pre-scan or background medium scan operation and the start of the next
background medium scan operation.
e.
Pre-Scan Timeout Value
This parameter specifies the maximum time, in hours, for a pre-scan
operation to complete. If the pre-scan operation does not complete within the
specified time then it is halted. A value of zero specifies an unlimited
timeout value.
C141-C012
a background medium scan operation shall not start until after the
pre-scan operation is halted or completed.
The BMS interval time shall occur before a background medium
scan operation is started.
Pre-Scan is disabled.
4.1 Control/Sense Commands
4-71
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