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28 Momentus Thin Product Manual, Rev. E

5.3.3 S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disk drives. When S.M.A.R.T. is enabled, the drive moni-

tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines

that a failure is likely, S.M.A.R.T. makes a st atus report available to the host. Not all failu res are predictable.

S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.

commands and implementation, see the Draft ATA-8 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4

) that elimi-

nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:

http://seatools.sea

gate.com.

This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that

supports S.M.A.R.T. to enable this fe ature. The table below shows the S.M.A.R.T. command codes that the

drive uses.

Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x 04

(abort) is written to the Error register.

Table 9: S.M.A.R.T. commands

Code in features register S.M.A.R.T. command

S.M.A.R.T. Read Data

Vendor-specific

S.M.A.R.T. Enable/Disable Attribute Autosave

S.M.A.R.T. Save Attribute Values

S.M.A.R.T. Execute Off-line Immediate (runs DST)

S.M.A.R.T. Read Log Sector

S.M.A.R.T. Write Log Sector

Vendor-specific

S.M.A.R.T. Enable Operations

S.M.A.R.T. Disable Operations

S.M.A.R.T. Return Status

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Seagate Thin Manual Pagina 34