HD Tune Using Guide, S.M.A.R.T info Meanings, Learning Hard Disk Health. Disc S.M.A.R.T. information. What are Reallocation Event Count, Current Pending Sector?
HD Tune, S.M.A.R.T. It is a free program that offers a lot of information about your disk using (Self-Monitoring, Analysis and Reporting Technology). It helps you detect and prevent future disk surface errors so you can take timely action before data loss becomes irreparable.
This program also includes features such as detecting Disk errors and testing Disk performance. In this article, we will focus on the disk health and information part.
Disk SMART is a system that provides information about your disk. Bad sectors and errors here indicate that it’s time to replace your disk and that you need to back up your data.
HD Tune Using Guide, S.M.A.R.T info Meanings
This program has two tabs called Info and Health. Thus, you can access Disk information and health status through these tabs.
- Firmware version: Shows the software version of your disk.
- Serial number: Each disc has a serial number. So here you can find the Serial number.
- Capacity: Specifies the disk capacity.
- Buffer: Indicates the size of the cache, which determines the processing capacity of the disk.
- Sector size: Shows the size of each sector on the disk.
- Standard: Indicates the interface connection type and connection speed, such as SATA.
- Supported: Shows the supported Ultra DMA protocol. (It is a protocol used to send data from HDD to buffer via busses.)
- Active: Shows the Ultra DMA protocol used.
- Average speed: Average data processing speed of the disk.
- Rotation speed: Displays the number of rotations per minute of the disc. (5400 RPM makes 90 revolutions per second. 7200 RPM is 120 rounds.)
Disk Sağlığı: SMART Terimleri
- 01 Raw Read Error Rate: Number of errors while reading data from disk.
- 03 Spin Up Time: The Spin-Up Time is the time, in ms, for the drive to spin up and become operational. Spin-Up Time is the time from 0RPM to stable speed and operation. As long as this Value is above the threshold, your disk’s acceleration time is good. So it’s good that this number is high.
- 04 Start/Stop Count: Shows the number of starts and stops of the disk so far.
- 05 Reallocated Sectors Count: Bad sectors of the hard drive that can no longer be trusted to securely store data. When a hard disk encounters a read/write/data validation error, it marks that sector as “reallocated” and transfers the data to another spare sector to avoid the risk of data corruption. In short, it is the information known as the Bad Sector number.
- 07 Seek Error Rate: Arama Error Rate is a SMART disk error that indicates a serious problem with the drive. This can be caused by severely bad sectors, mechanical problems or overheating and servo damage. The higher the Scan Error Rate, the higher the probability of driver search failure.
- 09 Power On Hours Count: The amount of time the disk has been open to date. This information is in hours.
- 0A Spin Retry Count: Indicates the number of attempts to reach the average spin speed of the disc. The disc can be used normally when it reaches the number of revolutions. Sometimes this cycle start is unresponsive and another attempt is made. This information also shows the number of attempts made. Sometimes there may be engine or readhead problems, although not a major issue.
- 0B Calibration Retry Count: The number of attempts to calibrate a drive. Indicates a major problem with the motor, bearings, or power supply. The click you hear on a failing hard drive is a retry of the calibration as the drive can’t see where it is. This is due to faulty heads/plates.
- 0C Power Cycle Count: Indicates the number of hard disk on/off cycles. It is the number of times the hard disk shaft starts to spin and stops spinning. This spindle turns on and starts spinning every time the drive is powered on or wakes from sleep mode.
- C0 Unsafe Shutdown Count): This parameter displays the number of power down cycles. It also displays the immediate Retraction Cycle Count. The Power Down Recall Count attribute usually increases during non-standard power OFF cycles, for example, caused by a sudden power failure, power loss, or hard reset. This is usually lower than the number of starts/stops, ideally 0.
- C1 Load Cycle Count: The Load/Unload Cycle Count indicates how often the actuator arm is parked in the load zone. The actuator arm holds the head that reads/writes the disk.
- C2 Temperature: Displays the internal temperature of the disc. Therefore, high temperature will reduce performance.
- C4 Reallocation Event Count: This parameter displays the number of remap operations (transferring data from a bad sector to a dedicated dedicated disk space – spare space). The raw value of this attribute represents the total number of attempts to transfer data from reallocated sectors to a spare area. Unsuccessful attempts are just as successful.
- C5 Current Pending Sector: The current number of sectors waiting to be moved is a SMART parameter that indicates the current number of unstable sectors on your disk that need to be remapped. And if these sectors are then successfully read, the count will decrease. Therefore, even if the read fails, the Number of Repositioned Sectors will increase.
- C6 Offline Uncorrectable: The uncorrectable and uncertain state number of sectors is an S.M.A.R.T parameter that indicates many unreadable errors while reading or writing a sector on the hard drive. If the hard drive has too many Uncorrectable Sector Counts, it means that the hard drive will fail, resulting in data loss.
- C7 Interface CRC Error Count: Indicates the number of unreadable data. This may not be a constantly received read error. It does not indicate that the sector in which the data is located is corrupt, it only shows the number of incorrect reads, the relevant data is corrupt or could not be read.
- C8 Write Error Rate: This parameter displays the total number of errors that occur when saving data to a hard disk. This can be caused by problems with the disk surface or read/write heads.
When should a disc not be used?
- If the disk has started to slow down.
- The disc temperature is too high.
- If Windows started to crash frequently (Blue screen errors).
- If different sounds are coming from the disc.
- If there are too many Bad Sectors, it indicates that the disk is nearing the end of its life.