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 — so it can tell you whether a slowdown is SLC cache or thermal throttling. 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叠加成曲线——能告诉你掉速是 SLC 缓存还是过热降频。纯测速工具做不到。虚线标出接口理论上限作对比。
Hottest drive at a glance, color-coded green / yellow / red against your thresholds.
最热硬盘一目了然,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.
温度、磨损、累计写入的 24 小时 / 7 天 / 30 天曲线,本地 SQLite 存储。
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. USB bridges auto-retry against a community quirks database — and you can grow it with one click.
雷电硬盘盒原生读取;USB 桥接按社区数据库自动重试参数,一键就能帮数据库添砖加瓦。
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。