S.M.A.R.T. attributes supported by WD EIDE and Serial ATA hard drives

S.M.A.R.T. is enabled on all Western Digital hard drives manufactured. If your computer or BIOS indicates that S.M.A.R.T. is not functioning or is not enabled, please contact the computer or motherboard manufacturer to resolve the issue.

Please see the table below for a list of S.M.A.R.T. attributes supported by WD EIDE and Serial ATA hard drives.

Attribute Attribute ID Number Attribute ID Number (Hex) Pre-Failure/Advisory Bit
(status flags bit 0)
Read Error Rate 1 1 Set
Spin-up Time 3 3 Set
Start/Stop Count 4 4 Clear
Re-allocated Sector Count 5 5 Set
Seek Error Rate 7 7 Set
Power-on Hours Count 9 9 Clear
Spin-up Retry Count 10 A Set
Drive Calibration Retry Count 11 B Set
Drive Power Cycle Count 12 C Clear
Emergency Retract Count 192 C0 Clear
Load/Unload Count 193 C1 Clear
HDA Temperature 194 C2 Clear
Relocation Event Count 196 C4 Clear
Current Pending Sector Count 197 C5 Clear
Off-line Scan Uncorrectable Sector Count 198 C6 Clear
Ultra DMA CRC Error Rate 199 C7 Clear
Multi-zone Error Rate 200 C8 Set


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