Chapter 10 Package Management

The following table describes the labels in this screen.

Table 66 Storage > S.M.A.R.T: Full Summary

LABEL

DESCRIPTION

ID

This is the identification number used to tag a hard disk attribute.

 

This is standard across all S.M.A.R.T-enabled storage devices.

 

However it depends on the storage vendor which attributes it will

 

allow S.M.A.R.T to diagnose.

 

 

Attribute Name

This refers to an attribute of the hard disk that S.M.A.R.T can assess.

 

Attributes describe the hard disk’s physical state, performance, wear-

 

and-tear, and so on.

 

 

Flag

This shows a code that S.M.A.R.T uses to determine the current state

 

of the hard disk.

 

 

Value

This is a value that corresponds to the Raw Value. Compare this

 

with the Threshold Value.

 

S.M.A.R.T compresses the raw value(s) into a digit from 1 to 253,

 

where 1 indicates the worst scenario while 253 indicates the best

 

scenario.

 

The values 100 or 200 usually represent the mean or normal value.

 

 

Worst

This is the lowest value attained by the hard disk since S.M.A.R.T

 

started its assessment of the hard disk.

 

 

Threshold

This is the attribute’s threshold value. If the attribute’s current

 

normalized value is less than or equal to the threshold, the attribute

 

has failed. An attribute value close to or below the threshold indicates

 

the hard drive is no longer reliable.

 

 

Type

This shows S.M.A.R.T’s assessment of the hard disk.

 

Old_age indicates end-of-product life from old-age (normal wearing

 

out) if the attribute value is less than or equal to the threshold.

 

Pre-failindicate imminent hard drive failure if the attribute value is

 

less than or equal to the threshold.

 

Note that just because an attribute is of the Pre-fail type does not

 

mean your hard drive is ready to fail. It only means this if the current

 

normalized value of the attribute is less than or equal to the

 

threshold.

 

 

Updated

This indicates when the hard drive updates the value for this

 

attribute.

 

• Always means the hard drive updates this attribute during

 

normal operation and during offline activities.

 

• Offline means the hard drive only updates this attribute when no

 

one is accessing the hard drive.

 

 

260

 

NSA320 User’s Guide