Is there a way to check HDD health?

Yes, there are a few ways to check the health of a hard disk drive (HDD). Monitoring HDD health is important to identify potential issues before disk failure or data loss occurs. The main options for checking HDD health include using built-in S.M.A.R.T. diagnostics, monitoring key attributes, running disk scanner software, and checking for bad sectors.

Check S.M.A.R.T. Status

One of the easiest ways to get an initial overview of HDD health is to check the S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) status. S.M.A.R.T. is a monitoring system built into most modern hard drives that acts as an early warning system for drive issues. S.M.A.R.T. monitors different drive attributes related to performance and mechanical function. If a problem is detected, the drive will provide a S.M.A.R.T. warning or error message.

To check S.M.A.R.T. status:

  • On Windows, open the Disk Management utility or a disk monitoring software like CrystalDiskInfo.
  • On Mac, use the Disk Utility application.
  • On Linux, use the smartctl command or disk utility programs like Gnome Disks.

This will give you an overview of S.M.A.R.T. status for each drive, often indicating either “OK” or “Warning” based on detected issues. A warning is an indication of a problem that should be looked into further using more detailed disk tests.

Monitor Key S.M.A.R.T. Attributes

For more detailed S.M.A.R.T. information, you can view the values for specific S.M.A.R.T. attributes. Each one relates to a particular aspect of drive performance or health:

  • Read Error Rate – Count of unrecoverable read errors.
  • Spin-Up Time – Time taken to spin up drive platters.
  • Start/Stop Count – Count of drive spin up/down cycles.
  • Reallocated Sectors – Count of sectors remapped due to errors.
  • Seek Error Rate – Rate of seek errors during disk read/write operations.
  • Power-On Hours – Total time drive has been powered on.
  • Uncorrectable Errors – Count of uncorrectable ECC/CRC errors.
  • Temperature – Drive temperature.

Higher error rates, reduced performance, and extreme temperature are signs of a struggling drive. Tracking these values over time gives you an indicator of disk health decline. Most S.M.A.R.T. tools will visualize attribute values and trends to make it easier to monitor.

Run Full Disk Scans

Disk scanner utilities like ChkDsk (Windows) and fsck (Linux/Mac) can run more comprehensive scans on your HDD to identify issues. This performs deeper analysis compared to S.M.A.R.T. status checks, actively reading larger portions of your drive to validate disk integrity.

Key disk scans you can run include:

  • Filesystem check – Scans filesystem structure checking for issues like bad sectors.
  • Surface scan – Reads entire drive surface to identify bad sectors.
  • SMART extended self-test – Thorough offline test of drive mechanical performance.

Schedule regular disk scans like weekly filesystem checks to proactively catch any developing problems. If existing disk issues are detected, the scanner will try to repair them by recovering data from reallocated sectors.

Check for Bad Sectors

One key sign of a struggling hard drive is the growth of “bad sectors” on the disk platters. These are areas that can no longer reliably store data due to physical damage or degraded magnetization. As the head attempts to read from or write to these sectors, input/output errors occur.

Tools like Windows Scanner allow targeted scans of your entire drive to identify the current count and location of bad sectors. This helps identify if a concerning amount of bad sectors are developing. The tool will also attempt “data recovery” on these sectors.

Having some bad sectors is normal, but if thousands develop it indicates component wear and potential drive failure down the line. Tracking growth of bad sectors helps determine if a drive needs to be replaced.

Monitor Health with Third-Party Tools

For convenience, many third-party utilities are available that provide a one-stop panel to monitor overall HDD health based on various metrics and tests.

Some top tools include:

  • CrystalDiskInfo – Provides an overview of health status, S.M.A.R.T. values, temperature, and bad sector counts.
  • Hard Disk Sentinel -Tracks S.M.A.R.T. attributes, performance benchmarks, health status, and estimated remaining lifetime for the drive.
  • DiskCheckup – Performs short or extended disk scans to analyze HDD defects and performance.

These tools often use a simple visual gauge to indicate HDD health percentage or “remaining lifetime”. This gives you an easy snapshot of drive status versus having to analyze individual S.M.A.R.T. attributes.

Listen for Mechanical Problems

Unusual mechanical sounds from a hard drive can indicate hardware problems. Issues like a noisy bearing, clicking actuator arm, or scraping/grinding platters are clearly audible. If you notice any new odd sounds coming from your computer, investigate immediately.

Some key mechanical noises to listen out for:

  • Clicking – The read/write head actuator arm is stuck and unable to move.
  • Grinding – Heads are scraping against platters due to damaged components.
  • Buzzing – Sign of electrical failure or faulty power supply.
  • Screeching – Friction between head and platters due to debris or smudges.
  • Beeping – Drive controller is warning of component failure.

Such noises often mean irreparable physical damage has occurred and drive failure is imminent. Back up your data immediately if you notice any odd HDD sounds.

Monitor HDD Temperature

Increased HDD temperature reduces component lifespan and leads to errors. S.M.A.R.T. tools monitor drive temperature. Third-party apps like SpeedFan allow more detailed temperature tracking.

Some guidelines for concerning HDD temperatures:

  • Above 60°C – Performance throttling may occur.
  • Above 70°C – Significant risk of failure.

Ensure your drive remains cool through adequate airflow and heat sinks. If temperatures rise, determine the cause – a failing fan, blocked vents, or overloaded drive.

Perform Regular Backups

No matter what utilities you use to monitor HDD health, it’s essential to maintain regular backups. Drive failure can occur suddenly without warning. Backing up important data provides protection to recover from undetected HDD problems before it’s too late.

Some backup tips:

  • Use redundancy – Maintain at least 2 copies of key data, preferably on different drives.
  • Automate backups – Use tools to schedule regular incremental backups.
  • Store backups externally – Keep a copy offsite or on non-system drives.
  • Test restores – Validate your backups by completing sample restores.

With robust backups in place, you can be confident you can recover data even if all HDD health checks are missed.

Replace Aging or Failing Drives

As hard drives exceed their typical 5 year expected lifespan, the risk of failure rises despite all monitoring efforts. If your HDD is over 5 years old, has concerning S.M.A.R.T. attributes, or dangerous mechanical issues – replacement should be strongly considered.

Signs it may be time for a new HDD:

  • Age over 5 years old.
  • Reallocated sectors count is high or growing.
  • Read/write error rates are steadily increasing.
  • Bad sectors are appearing.
  • You are hearing odd mechanical noises.
  • S.M.A.R.T. status shows warnings.
  • Drive temperature is consistently high.

Continuing to use an aging HDD with clear problems puts your data at risk. Replacing deteriorating drives before failure gives you control to migrate your data on your terms.


Monitoring the health of high-use hard disk drives helps avoid unexpected data loss from sudden drive failures. Using built-in S.M.A.R.T. diagnostics provides insight into developing issues. Supplementing this by scanning for bad sectors, listening for odd noises, managing temperature, and testing backups gives a comprehensive view of HDD health. Replace drives proactively once concerning issues arise.

With robust tools and practices for keeping tabs on HDDs, you can catch problems early and take action before catastrophe strikes. This allows you to maximize the lifespan of your drives and gives you the best chance of recovering data from failing disks.