Applicable Products
QTS, QuTS hero, Storage & Snapshots
Overview
QNAP NAS systems support both S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) and IronWolf Health Management (IHM) to monitor the health of installed hard drives. Occasionally, these two systems may report different health statuses for the same drive, which can lead to confusion.
Explanation
Understanding the Differences
S.M.A.R.T. is an industry-standard technology built into most hard drives. It reports drive health based on various measurable attributes, such as reallocated sectors, read errors, and spin retries. A warning from S.M.A.R.T. typically means that the drive has already shown some degree of physical degradation, such as bad blocks or early-stage mechanical issues.
IHM is a Seagate-specific system that supplements S.M.A.R.T. data with environmental and workload analysis. It uses predictive models to identify patterns that may lead to future failure but may not flag all raw S.M.A.R.T. attribute warnings.
In some cases, S.M.A.R.T. may issue a warning due to minor errors or aging indicators, while IHM still considers the drive “healthy” because the errors have not yet reached a critical threshold in its predictive model.
Recommendation
If your S.M.A.R.T. status shows “Warning” or “Abnormal”, even when IHM says the drive is “Healthy”, we strongly recommend the following actions:
Back up your data immediately.
Monitor the S.M.A.R.T. attributes such as:
Run a Complete S.M.A.R.T. Test from Storage & Snapshots > Disks > Health Info to check for ongoing degradation.
Replace the drive if your data is important or if the S.M.A.R.T. warnings persist or increase over time.
Even minor S.M.A.R.T. warnings can be early signs of a failing drive, and it is safer to replace the drive proactively rather than risk sudden failure later.
Note
When S.M.A.R.T. shows a warning, it means that physical degradation has begun—even if the drive continues functioning. Continuing to use the drive increases the risk of data loss.
Further Reading
What is IronWolf Health Management (IHM)?
SMART values and there meaning HDD diskinfo
適用產品
QTS, QuTS hero, 儲存與快照總管
概覽
QNAP NAS 系統支援S.M.A.R.T. (自我監測、分析和報告技術)和IronWolf 健康管理 (IHM)來監控已安裝硬碟的健康狀況。有時，這兩個系統可能會對同一硬碟報告不同的健康狀態，這可能會導致混淆。
說明
瞭解差異
S.M.A.R.T.是一種內建於大多數硬碟中的業界標準技術。它根據各種可測量的屬性報告硬碟健康狀況，例如重新配置的扇區、讀取錯誤和旋轉重試。S.M.A.R.T. 發出的警告通常意味著硬碟已經顯示出某種程度的物理退化，例如壞區或早期機械問題。
IHM是 Seagate 特有的系統，補充 S.M.A.R.T. 資料，並進行環境和工作負載分析。它使用預測模型來識別可能導致未來故障的模式，但可能不會標記所有原始 S.M.A.R.T. 屬性警告。
在某些情況下，S.M.A.R.T. 可能會發出警告由於小錯誤或老化指標，而IHM 仍然認為硬碟是「健康的」因為這些錯誤在其預測模型中尚未達到臨界值。
建議
如果您的 S.M.A.R.T. 狀態顯示「警告」或「異常」，即使 IHM 顯示硬碟是「健康的」，我們強烈建議採取以下行動：
立即備份您的資料。
監控 S.M.A.R.T. 屬性，例如：
重新配置的扇區計數
當前待處理扇區
不可修正的扇區計數
執行完整的 S.M.A.R.T. 測試從儲存與快照總管 > 磁碟 > 健康資訊檢查是否有持續的退化。
如果您的資料很重要或 S.M.A.R.T. 警告持續或增加，請更換硬碟。
即使是輕微的 S.M.A.R.T. 警告也可能是硬碟故障的早期跡象，主動更換硬碟比冒著後續突然故障的風險更安全。
注意
當 S.M.A.R.T. 顯示警告時，意味著物理退化已經開始，即使硬碟仍在執行。繼續使用硬碟會增加資料遺失的風險。
進一步閱讀
什麼是 IronWolf 健康管理 (IHM)？
SMART 值及其意義 HDD diskinfo
