Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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19.7.11 Log Sense Page 15
This page contains information about Background Medium Scan operations.
Table 134:Log Sense Page 15
The following table describes the BMS Status Parameter structure.
•Power On Minutes indicates the total power on minutes at the time the log page is requested
•BMS Status is described in the following table
Byte Bit
76543210
0 Reserved Page code = 15h
1 Reserved
2-3 Page Length = (19 + 24N -3)
Background Medium Scan parameters
4-19 BMS Status Parameter
20-43 First Medium Scan Parameter
...
19+24N Last Medium Scan Parameter
Byte Bit
76543210
0-1 Parameter Code = 0000h
2 DU=0 DS=0 TSD=0 ETC=0 TMC=0 F&L = 11b
2-3 Page Length = 0Ch
4-7 Power On Minutes
8 Reserved = 0
9BMS Status
10-11 Number of Scans Performed
12-13 Medium Scan Progress
14-15 Reserved = 0
BMS Status Description
00h No scans active
01h Background medium scan is active
02h Background pre-scan is active