SMART Screen
Use this screen to view indicators of your NSA’s hard disk(s) health.
Self Monitoring, Analysis, and Reporting Technology (S.M.A.R.T) detects and reports the reliability of hard disks using standard indicators (called “attributes”), to help you anticipate possible disk failures.
Note:
Select a hard disk volume from the list and click this to display information about the volume, such as the hard disk vendor, specific model, hard disk capacity and so on.
Good - This shows when you compare each Value with the Threshold Value and all the Value is greater than the Threshold Value.
Bad - This shows when you compare each Value with the Threshold Value and at least one Value is less than or equal to the Threshold Value.
This shows volume type or file system that the hard disk is using, such as JBOD, PC Compatible Volume and RAID or FAT32, FAT16 and NTFS.
SMART Brief Summary
Use this screen to display information about the volume, such as the hard disk vendor, specific model, hard disk capacity and so on.
Good - This shows when you compare each Value with the Threshold Value and all the Value is greater than the Threshold Value.
Bad - This shows when you compare each Value with the Threshold Value and at least one Value is less than or equal to the Threshold Value.
SMART Full Summary
Use this screen to display more details information about the volume.
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.
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.
This is a value that corresponds to the Raw Value. Compare this with the Threshold Value.
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.
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-fail indicate 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.
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.
-: This displays if the attribute is not failing now and has never failed in the past.
FAILING_NOW: This displays if the attribute’s current normalized value is less than or equal to the threshold.
In_the_past: This displays if the attribute’s current normalized value is greater than the threshold but the worst recorded value is less than or equal to the threshold.
This is the attribute’s unprocessed raw data. These values show exact amounts of time or numbers of attempts or errors. The meaning to the raw values is specific to the hard drive manufacturer. Table 42 on page 156 has some information about whether a higher or lower individual raw S.M.A.R.T. attribute value is better.