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.
适用产品
- All QNAP NAS models that support disk hot-swapping
概述
预防性磁盘更换允许您主动更换尚未故障但可能接近使用寿命的硬盘。此过程可降低意外磁盘故障的风险，并有助于维护数据安全。该过程涉及磁盘迁移和 RAID 组重建。
警告： 更换磁盘如果操作不当，可能会导致数据丢失。我们建议在开始之前备份所有重要数据。
步骤
- 准备新磁盘
- 确保新磁盘的型号和容量支持您的 NAS，并在 QNAP 兼容性列表中列出。
- 新磁盘应与 RAID 组中较大的磁盘相同或更大。
- 打开存储与快照总管
- 使用管理员账户登录 NAS 网页管理页面。
- 打开存储与快照总管。
- 验证 RAID 组或存储池状态为正常且没有警告。
- 启动预防性磁盘更换
- 在存储与快照总管中，转到存储 / 快照 > 磁盘并找到您要更换的磁盘。
- 点击目标磁盘，然后选择操作 > 定位。
- 当相应磁盘的 LED 灯闪烁红色时，物理移除磁盘。
- 将新的替换磁盘插入同一插槽。
- 插入新磁盘后，监控系统状态并确认 RAID 重建过程自动开始。
- 注意：
- 在 RAID 重建过程中，请勿移除其他磁盘。
- RAID 重建期间，系统性能可能暂时降低，这是预期行为。
- 等待重建完成
- 系统将自动开始从旧磁盘到新磁盘的数据重建。
- 在存储与快照总管任务 / 状态区域监控进度。
- 重建过程可能需要较长时间。在此期间避免重启或移除磁盘。
提示与较佳实践
- 先备份： 在进行预防性更换之前，始终备份重要数据。
- 保持电源稳定： 确保在整个重建过程中电源保持稳定。
- 之后验证健康状态： 重建完成后，确认 RAID/ 存储池显示健康状态。
何时使用预防性更换
- 磁盘显示 SMART 警告（如重新分配扇区或高错误率）。
- 较旧的磁盘接近保修期结束或预期故障年龄。
- 计划进行定期维护或基础设施更新。
