The SSD health monitor macOS is missing.
Free & open source, in your menu bar.
macOS 缺失的那块 SSD 健康监控。
免费开源,常驻菜单栏。
CrystalDiskMark-style read/write bars, plus a temperature track recorded during the run. NVMeter reads both and states the verdict in plain words — thermal throttling, SLC-cache exhaustion, or held steady. No pure speed tool does this. A dashed line marks the interface's theoretical ceiling.
CrystalDiskMark 风格读写条状图,测速时同步记录温度曲线。NVMeter 综合两者直接给出结论——过热降频、SLC 缓存耗尽,还是全程稳定。纯测速工具做不到。虚线标出接口理论上限作对比。
Run the drive's own built-in long self-test with live progress, a completion notification, and a local history of past results. It runs on the drive itself, so it survives sleep and quitting the app.
一键发起硬盘内置的扩展自检:实时进度、完成通知、本地历史留档。自检跑在硬盘内部,睡眠或退出 App 都不中断。
Show temperature, NAND wear, or a health dot for the worst drive — color-coded green / yellow / red against your thresholds.
菜单栏可选显示温度、NAND 磨损,或状态最差硬盘的健康灯——按你的阈值显示绿/黄/红。
Every NVMe health-log field — wear, spare, media errors, unsafe shutdowns — grouped into pre-fail vs life-span. No fabricated columns.
NVMe 健康日志的每个字段——磨损、备用块、介质错误、非正常关机——按故障预警/寿命计数分组,不造假数据。
Temperature, wear, and lifetime writes over 24 h / 7 d / 30 d, stored locally in SQLite — plus a projection of when NAND wear will reach its rated limit, extrapolated from your own history.
温度、磨损、累计写入的 24 小时 / 7 天 / 30 天曲线,本地 SQLite 存储;并根据你自己的历史外推,预测 NAND 磨损达到额定上限的大致时间。
Per-model rated TBW and warranty length, with a "used endurance" bar from your lifetime writes. One click opens the manufacturer's official warranty page; enter a purchase date for an offline countdown to when coverage ends. Your serial never leaves the Mac.
按型号显示额定 TBW 与质保年限,用累计写入算出"已用耐久"进度条。一键打开厂商官方质保页;填入购买日期即可本地算出质保到期倒计时。序列号绝不离开你的 Mac。
Native macOS alerts when a drive crosses your warning or critical temperature.
硬盘越过警告或危险温度时发送原生 macOS 通知。
Thunderbolt enclosures read natively. For USB bridges, NVMeter auto-probes every translation mode to unlock cooperative chips — no kext — then offers a one-click contribution to the community quirks database.
雷电硬盘盒原生读取;USB 桥接会自动遍历所有翻译模式解锁配合型芯片(无需内核扩展),再一键贡献到社区数据库。
No telemetry, no account, no cloud. AGPL-3.0 — read every line.
无遥测、无账号、无云端。AGPL-3.0 开源,每一行代码可查。
| NVMeter | Typical paid app | 典型收费软件 | |||
|---|---|---|---|---|---|
| Price | 价格 | Free forever | 永久免费 | $20–25 | |
| Source code | 源代码 | Open (AGPL-3.0) | 开源 (AGPL-3.0) | Closed | 闭源 |
| Full NVMe SMART table | 完整 NVMe SMART 表 | ✓ | ✓ | ||
| Trend history | 历史趋势 | ✓ | ✓ | ||
| 简体中文 | ✓ | Rarely | 少见 | ||
| Enclosure quirks database | 硬盘盒兼容数据库 | Community-owned (CC0) | 社区共有 (CC0) | Proprietary | 私有 |
| Auto-update | 自动更新 | ✓ Sparkle | ✓ |
Many USB-SATA enclosures and external HDDs can't expose SMART on macOS at all — Apple's user-space SCSI stack blocks the pass-through, and no app can fix that without a kernel extension (which on Apple Silicon means disabling security features). NVMeter tells you this plainly on the device card instead of pretending, still shows capacity and connection info, and reads Thunderbolt enclosures perfectly — they bypass the problem entirely.
很多 USB-SATA 硬盘盒和外置机械盘在 macOS 上根本无法读取 SMART——Apple 的用户态 SCSI 栈阻止了透传,任何应用都无法在不装内核扩展(Apple 芯片上意味着关闭安全特性)的情况下解决。NVMeter 在设备卡片上直接说明,不装样子;容量与连接信息照常显示。雷电硬盘盒完全不受影响,读取完美。