Magician - SMART Info

S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) uses a set of attributes to monitor the selected drive and to analyze its reliability.

Each attribute has a raw value and a threshold value defined by the manufacturer. To learn more about SMART attributes, see the ATA specifications available online.

Samsung SMART attributes are reported in decimal format. ID numbers may differ from other storage manufacturers. Please note that if you are using 3rd party software to monitor SMART attributes, the ID may be shown in hexadecimal format.

Details shown for each SMART attribute include:

• ID
• The decimal name of the SMART attribute.
• Description
• The name of the SMART attribute.
• Threshold
• The lowest value at which the normalized value is considered “exceeding specifications”.
• Current Value
• The current, normalized value of the attribute.
• Worst Value
• The poorest value reported for the selected disk for a particular attribute.
• Raw Data
• The raw value assigned to the SMART attribute by the drive manufacturer.
• Status
• Shows whether the system can use the drive for processing.

Descriptions of some SMART attributes are shown below. These attributes vary depending on the Samsung SSD or other disk selected. Your SSD or disk may not support some of these attributes.

• Reallocated Sector Count
• Count of reallocated sectors. When the drive finds a read/write/verification error, it marks that sector reallocated and transfers the data to a new sector from a special reserved area.
• Power-On Hours
• The number of hours the drive has been in the “on” state. This value simply shows user behavior and is not directly related to the health of the drive. The raw value of this attribute shows the total count of hours (or minutes, or seconds, depending on manufacturer) the drive has spent in the power-on state. When the machine is in Hibernation Mode, the Power-On Hours value does not increment.
• Power-on Count
• Count of full disk power on/off cycles. · Wear Leveling Count Represents the number of media erase operations (the number of times a block has been erased).
• Used Reserved Block Count
• Represents the total number of reserved blocks that have been used as a result of a program or erase failure.
• Program Fail Count
• Count of failed program (write) requests.
• Erase Fail Count
• Count of failed erase requests.
• Runtime Bad Count
• Equal to the sum of the Program Fail Count and Erase Fail Count. This summary value represents the total count of all program/erase failures.
• Uncorrectable Error Count
• The total number of errors that could not be recovered using ECC.
• Air Flow Temperature
• The current temperature of the NAND chips inside of the SSD.
• ECC Error Rate
• Count of correctable errors. Number of errors corrected by the internal error correcting mechanism.
• CRC Error Count
• The number of Cyclic Redundancy Check (CRC) errors. If there is a problem between the host and the DRAM or NAND flash, the CRC engine will tally the error and store it in this attribute.
• POR Recovery Count
• A count of the number of sudden power off cases. If there is a sudden power off, the firmware must recover all of the mapping and user data during the next power on. This is a count of the number of times this has happened.
• Total LBAs Written
• Represents the total size of all LBAs required for all of the write requests sent to the SSD from the Host.