磁盘故障在dmesg中如何体现_运维文库_资讯中心

发布时间:2026-04-27 00:42:50

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磁盘故障在dmesg（Linux内核消息缓冲区）中的体现通常包括一系列与磁盘相关的错误、警告和信息性消息。这些消息可能因磁盘类型（如SATA、SCSI、NVMe等）、故障性质（如读写错误、坏道、控制器故障等）以及系统配置的不同而有所差异。

以下是一些可能在dmesg中出现的磁盘故障相关消息示例：

读写错误：

[  123.456789] sd 2:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  123.456789] sd 2:0:0:0: [sda] tag#0 Sense Key : Medium Error [current]
[  123.456789] sd 2:0:0:0: [sda] tag#0 Add. Sense: Unrecovered read error

坏道：

[  234.567890] sd 3:0:0:0: [sdb] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  234.567890] sd 3:0:0:0: [sdb] tag#1 Sense Key : Aborted Command
[  234.567890] sd 3:0:0:0: [sdb] tag#1 Add. Sense: Uncorrectable error

控制器故障：

[  345.678901] ata1.00: exception Emask 0x0 SAct 0x10 SErr 0x0 action 0xe frozen
[  345.678901] ata1.00: irq_stat 0x40000008
[  345.678901] ata1.00: failed command: READ FPDMA QUEUED
[  345.678901] ata1.00: cmd 60/08:00:10:00:00/00:00:04:00:00/e0 tag 0 ncq 4096 in
[  345.678901]          res 41/40:00:10:00:00/00:00:04:00:00/e0 Emask 0x9 (media error)

磁盘掉线/重新上线：

[  456.789012] ata2.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen
[  456.789012] ata2.00: irq_stat 0x40000008
[  456.789012] ata2.00: failed command: READ FPDMA QUEUED
[  456.789012] ata2.00: cmd 60/08:00:20:00:00/00:00:08:00:00/e0 tag 0 ncq 8192 in
[  456.789012]          res 41/40:00:20:00:00/00:00:08:00:00/e0 Emask 0x9 (media error)
[  456.789012] ata2.00: status: { DRDY ERR }

SMART错误：

[  567.890123] sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  567.890123] sd 0:0:0:0: [sda] tag#0 Sense Key : Hardware Error
[  567.890123] sd 0:0:0:0: [sda] tag#0 Add. Sense: Unknown error

要查看dmesg中的磁盘相关消息，可以在终端中运行以下命令：