11418: Acronis Drive Monitor: Known Issues in Disk Health Calculation

Known health reporting issues in Acronis Drive Monitor

This article applies to:

Although Acronis makes best efforts to support proper health calculation in every hard drive available on the market today, some drives report S.M.A.R.T. information in a specific way that prevents Acronis Drive Monitor from proper calculating of their health status. Acronis works in cooperation with corresponding hardware vendors to resolve these problems in the upcoming releases of Acronis Drive Monitor.

Note that the failure prediction with the "Failure predicted" status works using hardware-independent API and not related to the health calculation, and this method should work on all hardware where S.M.A.R.T. is supported (see "Drive failure predicted" Status Reported by Acronis Drive Monitor).

Unsupported or not fully supported drives

  • Wrong reading of "Reallocated Sectors Count" and "Reallocation Events Count" on certain FUJITSU drives

    • Symptoms

      Several models of Fujitsu hard drives have been reported as showing low (typically 30%) remaining health in Acronis Drive Monitor. On the "S.M.A.R.T. parameters" page, two attributes, "Reallocated Sectors Count" and "Reallocation Events Count" are shown as "Critical” and Warning" correspondingly. Raw value of the "Reallocated Sectors Count" attribute shows unusually large value (e.g. 2147483647).

    • Cause

      The affected models of Fujitsu drives report the S.M.A.R.T. attributes mentioned above in the way that Acronis Drive Monitor misinterprets. The low health values reported may be not related to the disk electromechanical problems.

    • Workaround

      Disable monitoring of two parameters mentioned above. To do that, open Acronis Drive Monitor Console, navigate to the "S.M.A.R.T. parameters" page, right-click with mouse on the parameters mentioned above, and select "Ignore parameter" option in the context menu.

      Acronis Drive Monitor will stop monitoring these parameters; however it will monitor other S.M.A.R.T. parameters, and will report "Failure predicted" status even if the status is generated based on degradation of ignored parameters.

  • Low health values reported on G.Skill Falcon SSD drives

    • Symptoms

      When monitored by Acronis Drive Monitor, G.Skill Falcon SSD drives may report low health based on 2 parameters:

      Uncorrectable Sector Count and Soft Read Error Rate

      Raw values for these parameters will display unusually large numbers (hundreds of millions).

      Also other SSD drives based on Indilinx controller may be affected.

    • Cause

      SSD drives based on Indilinx controller report S.M.A.R.T. parameters in an unusual way. For example, while conventional hard drives use attribute with ID 198 to report "Uncorrectable Sector Count" attribute, the SSD mentioned above reports "Read Sectors Total Count" under ID 198. As a result, Acronis Drive Monitor uses wrong value to calculate the disk health.

    • Workarounds

      Disable monitoring of all S.M.A.R.T. parameters mentioned above. To do that, open Acronis Drive Monitor, navigate to the "S.M.A.R.T. parameters" page, right-click with mouse on a parameter, and select "Ignore parameter" option in the context menu. Then repeat with other parameters.

      Acronis Drive Monitor will stop calculating drive health for this drive. However it will continue to monitor S.M.A.R.T. interface for the "Failure predicted" status even if the status would be generated based on degradation of the ignored parameters.

More information

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