Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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and they should be sent in ascending order by parameter code value. The drive shall return Check Condition status if the appli-
cation client sends pages out of order, parameter codes out of order or missing parameter code. The sense key shall be set to
Illegal Request and additional sense code set to Invalid Field in Parameter List. If one or more fields of the CDB are not set
correctly the command will be terminated with a Check Condition status. The sense key shall be set to Illegal Request and
additional sense code of Invalid Field in CDB. To indicate that parameters have changed, the Target generates a unit attention
condition for all Initiators except the one that issued the LOG SELECT command.
The following list contains all individual page parameters (counters) that are set to their default value of zero by the LOG
SELECT command (when PCR=1).
• Page 02h parameters: (Counters for write errors)
- Write errors recovered without delay
- LBAs with write fault error
- Reserved=0
- Total errors recovered
- Number of times recovery invoked
- Total write byte count
- LBAs with hard error
• Page 03h parameters: (Counters for read errors)
- Read errors recovered without delay
- LBAs with ECC detected error
- Reserved=0
- Total errors recovered
- Number of times recovery invoked
- Total read byte count
- LBAs with hard error.
• Page 05h parameters: (Counters for Verify Errors)
- Errors recovered without delay
- LBAs with ECC detected error
- Reserved=0
- Total errors recovered
- Number of times recovery invoked
- Total bytes verified
- LBAs with hard error.
• Page 06h parameters: (Counters for non medium errors, seek and other hardware type failures)
- Non-Medium Error Counter
• Page 15h parameters: (Background Medium Scan information)
- BMS Status parameter
- all Medium Scan parameters