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Seagate IronWolf Pro SATA Product Manual, Rev. E 49
www.seagate.com Serial ATA (SATA) interface
5.3.3 Device Statistics log
The Device Statistics log (log 04H) transfers information about the drive. The data is organized as a set of 512-byte
blocks of data, whose contents are shown in Table 2 on page 7. All reserved bits or words should be set to zero.
Parameters listed with an "x" are drive-specific or vary with the state of the drive.
The following may contain drive-specific features that are included in the SATA specifications.
Table 12 Device Statistics log
Page
(hex)
Statistic Supported
00 List of supported log pages Yes
01 General Statistics
Lifetime Power-on Resets Yes
Power-on Hours Yes
Logical Sectors Written Yes
Number of Write Commands Yes
Logical Sectors Read Yes
Number of Read Commands Yes
Pending Error Count Yes
Workload Utilization No
Utilization Usage Rate No
Resource Availability No
Random Write Resources Used No
02 Free Fall Statistics
Number of Free-Fall Events Detected No
Overlimit Shock Events No
03 Rotating Media Statistics
Spindle Motor Power-on Hours Yes
Head Flying Hours Yes
Head Loaded Events Yes
Number of Reallocated Logical Sectors Yes
Read Recovery Attempts Yes
Number of Mechanical Start Failures Yes
Number of Reallocation Candidate Logical Sectors Yes
Number of High Priority Unload Events Yes
04 General Errors Statistics
Number of Reported Uncorrectable Errors Yes
Number of Resets Between Command Acceptance and Command Completion Yes
Physical Element Status Changed Yes
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