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Content-Type: TEXT/PLAIN; charset=US-ASCII
On Sun, 14 Sep 1997, Darin Johnson wrote:
> What is this anyway? I just bought a hard drive and saw the
> S.M.A.R.T. logo, and thought it was just another logo.
S.M.A.R.T -- "Self Monitoring, Analysis and Reporting Technology", is
a feature which is available on new disk drives, and enables the drive
to monitor and report several internal parameters over time, in an attempt
to predict a suspected failure in the future before it actually occurs.
I have attached a first version of a kernel patch/tool which can query
the S.M.A.R.T status of new IDE drives. For example, on my drive:
Id= 1, Status=11 {PreFailture , OnLine }, Value=200, Threshold= 51, Passed
Id= 4, Status=18 {Advisory , OnLine }, Value=100, Threshold= 40, Passed
Id= 10, Status=19 {PreFailture , OnLine }, Value=100, Threshold= 51, Passed
Id= 11, Status=19 {PreFailture , OnLine }, Value=100, Threshold= 51, Passed
Id= 12, Status=18 {Advisory , OnLine }, Value=200, Threshold= 0, Passed
Id=200, Status= 9 {PreFailture , OffLine}, Value=100, Threshold= 51, Passed
OffLineStatus=2 {Completed}, AutoOffLine=No, OffLineTimeout=15 minutes
OffLineCapability=3 {Immediate Auto SuspendOnCmd}
SmartRevision=5, CheckSum=184, SmartCapability=2 { AutoSave}
The drive can perform both "online" and "offline" tests. The online
tests are performed automatically once S.M.A.R.T is enabled, and the
offline tests have to be explicitly specified.
Each "Id" line corresponds to a specific device test, and contains a
"Value" and a "Threshold". A Value < Threshold condition indicates that
the device suspects a pending failure in the future.
Gadi
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