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Why does my NAS show an 'Abnormal' S.M.A.R.T. status but IHM reports the drive as 'Healthy'?

Hvorfor viser min NAS en 'Unormal' S.M.A.R.T.-status, men IHM rapporterer drevet som 'Sundt'?

Last modified date: 2025-06-25

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:
- Reallocated sector count
- Current pending sectors
- Uncorrectable sector count
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.

Anvendelige produkter

QTS, QuTS hero, Lager og snapshots

Oversigt

QNAP NAS-systemer understøtter bådeS.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology)ogIronWolf Health Management (IHM)til at overvåge helbredet af installerede harddiske. Lejlighedsvis kan disse to systemer rapportere forskellige helbredstilstande for den samme disk, hvilket kan føre til forvirring.

Forklaring

Forstå forskellene

S.M.A.R.T.er en industristandardteknologi indbygget i de fleste harddiske. Den rapporterer diskens helbred baseret på forskellige målbare attributter, såsom omfordelte sektorer, læsefejl og spin-retries. En advarsel fra S.M.A.R.T. betyder typisk, at disken allerede har vist en vis grad af fysisk nedbrydning, såsom dårlige blokke eller tidlige mekaniske problemer.
IHMer et Seagate-specifikt system, der supplerer S.M.A.R.T.-data med miljø- og arbejdsbyrdeanalyse. Det bruger forudsigelsesmodeller til at identificere mønstre, der kan føre til fremtidige fejl, men det kan muligvis ikke markere alle rå S.M.A.R.T.-attributadvarsler.

I nogle tilfælde,kan S.M.A.R.T. udstede en advarselpå grund af mindre fejl eller aldringsindikatorer, mensIHM stadig betragter disken som “sund”fordi fejlene endnu ikke har nået en kritisk tærskel i dens forudsigelsesmodel.

Anbefaling

Hvis din S.M.A.R.T.-status viser“Advarsel” eller “Unormal”, selv når IHM siger, at disken er“Sund”, anbefaler vi stærkt følgende handlinger:

Sikkerhedskopier dine data med det samme.
Overvåg S.M.A.R.T.-attributter som:
- Omfordelt sektortælling
- Nuværende ventende sektorer
- Ukorrigerbar sektortælling
Kør enKomplet S.M.A.R.T.-testfraLager og snapshots > Diske > Helbredsinfofor at kontrollere for igangværende nedbrydning.
Udskift disken hvis dine data er vigtige, eller hvis S.M.A.R.T.-advarslerne vedvarer eller øges over tid.
Selv mindre S.M.A.R.T.-advarsler kan være tidlige tegn på en svigtende disk, og det er sikrere at udskifte disken proaktivt frem for at risikere pludselig fejl senere.

Bemærk

Når S.M.A.R.T. viser en advarsel, betyder det, at fysisk nedbrydning er begyndt—selv hvis disken fortsætter med at fungere. Fortsat brug af disken øger risikoen for datatab.

Yderligere læsning

Hvad er IronWolf Health Management (IHM)?

SMART-værdier og deres betydning HDD diskinfo

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