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+> 本文作者：丁辉
+
+# 设备或资源繁忙
+
+## 块设备资源繁忙
+
+> mkfs.xfs: cannot open /dev/sdb: Device or resource busy
+
+解决办法
+
+1. 列出所有逻辑设备
+
+   ```bash
+   dmsetup ls
+   ```
+
+2. 移除占用
+
+   ```bash
+   dmsetup remove ${逻辑设备}
+   ```
+
+