Applicable Products
- All QNAP NAS models that support disk hot-swapping
Overview
Preventive disk replacement allows you to proactively replace a hard drive that has not yet failed but may be nearing the end of its service life. This process reduces the risk of unexpected disk failures and helps maintain data safety. The procedure involves disk migration and RAID group rebuilding.
Warning: Replacing disks carries a risk of data loss if not performed correctly. We recommend backing up all important data before you begin.
Procedure
- Prepare the new disk
- Ensure the new disk model and capacity are supported for your NAS and listed in the QNAP compatibility list.
- The new disk should be the same size or larger than the largest disk in the RAID group.
- Open Storage & Snapshots
- Log in to NAS web management page with an administrator account.
- Open Storage & Snapshots.
- Verify that the RAID group or storage pool status is Normal and no warnings are present.
- Initiate preventive disk replacement
- In Storage & Snapshots, go to Storage / Snapshots > Disks and locate the disk you want to replace.
- Click the target disk, then select Action > Locate.
- When the corresponding disk LED flashes red, physically remove the disk from the drive bay.
- Insert the new replacement disk into the same bay.
- After inserting the new disk, monitor the system status and confirm that the RAID rebuilding process starts automatically.
- Note:
- Do not remove any other disks while RAID rebuilding is in progress.
- System performance may be temporarily reduced during the RAID rebuild; this is expected behavior.
- Wait for rebuild to complete
- The system will automatically begin rebuilding data from the old disk to the new one.
- Monitor progress in the Storage & Snapshots task/status area.
- The rebuild process can take significant time. Avoid restarting or removing drives during this period.
Tips & Best Practices
- Backup first: Always back up important data before a preventive replacement.
- Keep power stable: Ensure power remains stable during the entire rebuild process.
- Verify health afterward: After rebuild completes, confirm the RAID/storage pool shows Healthy status.
When to use preventive replacement
- A disk is showing SMART warnings (such as reallocated sectors or high error rates).
- An older drive is approaching warranty end or expected failure age.
- Scheduled maintenance or infrastructure refresh is planned.
適用產品
- All QNAP NAS models that support disk hot-swapping
概述
預防性磁碟更換允許您主動更換尚未故障但可能接近使用壽命結束的硬碟。此過程可降低意外磁碟故障的風險並有助於維護資料安全。程式涉及磁碟遷移和 RAID 群組重建。
警告： 更換磁碟若未正確執行可能會導致資料遺失。我們建議在開始之前備份所有重要資料。
程式
- 準備新磁碟
- 確保新磁碟型號和容量支援您的 NAS 並列於 QNAP 相容性清單。
- 新磁碟應與 RAID 群組中最大的磁碟相同或更大。
- 開啟儲存與快照總管
- 使用系統管理員帳戶登入 NAS 網頁管理頁面。
- 開啟 儲存與快照總管。
- 確認 RAID 群組或儲存空間儲存池狀態為 正常 且無警告。
- 啟動預防性磁碟更換
- 在 儲存與快照總管，前往 儲存空間 / 快照 > 磁碟 並找到您要更換的磁碟。
- 點選目標磁碟，然後選擇 動作 > 定位。
- 當相應磁碟 LED 紅燈閃爍時，從磁碟槽中取出磁碟。
- 將新的替換磁碟插入相同的槽位。
- 插入新磁碟後，監控系統狀態並確認 RAID 重建過程自動開始。
- 注意：
- 在 RAID 重建過程中請勿移除任何其他磁碟。
- 在 RAID 重建期間系統效能可能暫時降低，這是預期的行為。
- 等待重建完成
- 系統將自動開始從舊磁碟到新磁碟的資料重建。
- 在 儲存與快照總管 任務 / 狀態區域監控進度。
- 重建過程可能需要相當長的時間。在此期間避免重新啟動或移除磁碟。
提示與最佳實務
- 先備份： 在進行預防性更換之前，請務必備份重要資料。
- 保持電源穩定： 確保在整個重建過程中電源保持穩定。
- 重建後確認健康狀況： 重建完成後，確認 RAID/ 儲存空間儲存池顯示 健康 狀態。
何時使用預防性更換
- 磁碟顯示 SMART 警告（例如重新分配的區段或高錯誤率）。
- 較舊的磁碟接近保固期結束或預期故障年齡。
- 計劃進行排程維護或基礎設施更新。
