HP Pavilion PCs - (English) Seagate Hard Drive U Series 10 Manual

U10 Family Product Manual, Rev. A 31
Note. If an appropriate code is not written to the Features Register, the
command is aborted and 0x04 (abort) is written to the Error
register.
D8
H
S.M.A.R.T. Enable Operations
D9
H
S.M.A.R.T. Disable Operations
DA
H
S.M.A.R.T. Return Status
Code in Features
Register
S.M.A.R.T. Command