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在 smartpqi 驱动程序重置 scsi 总线后,无法访问磁盘,导致 "Medium access timeout failure.Offlining disk!" 错误

Solution In Progress - Updated -

Issue

  • smartpqi 驱动程序有以下日志信息,无法访问离线磁盘

    Jan  6 01:50:48 hostname kernel: smartpqi 0000:5c:00.0: resetting scsi 14:1:0:1
    Jan  6 01:50:48 hostname kernel: smartpqi 0000:5c:00.0: reset of scsi 14:1:0:1: SUCCESS
    Jan  6 01:50:48 hostname kernel: sd 14:1:0:1: [sdb] Medium access timeout failure. Offlining disk!
    Jan  6 01:50:48 hostname kernel: sd 14:1:0:1: Device offlined - not ready after error recovery
    :
    
  • 为什么当 RAID 的一个部分出现故障时,硬件 RAID1 中的一个设备无法被访问?

  • 当硬件 RAID1 中的一个部分出现故障时,系统中对应的设备将无法被访问
  • 对操作系统而言,硬件 RAID1 中的一个组件出现故障应该不会影响相关的操作,但为什么相关的设备无法被访问?

    Jun  4 06:02:08 localhost kernel: smartpqi 0000:12:00.0: resetting scsi 1:1:0:2
    Jun  4 06:02:08 localhost kernel: smartpqi 0000:12:00.0: reset of scsi 1:1:0:2: SUCCESS
    Jun  4 06:02:08 localhost kernel: sd 1:1:0:2: [sdc] Medium access timeout failure. Offlining disk!
    Jun  4 06:02:08 localhost kernel: sd 1:1:0:2: Device offlined - not ready after error recovery
    :
    Jun  4 06:02:10 localhost kernel: XFS (sdc1): metadata I/O error: block 0x6fd0f0d0 ("xlog_iodone") error 5 numblks 64
    Jun  4 06:02:10 localhost kernel: XFS (sdc1): xfs_do_force_shutdown(0x2) called from line 1200 of file fs/xfs/xfs_log.c.  Return address = 0xffffffffc02f7ea0
    Jun  4 06:02:10 localhost kernel: XFS (sdc1): Log I/O Error Detected.  Shutting down filesystem
    Jun  4 06:02:10 localhost kernel: XFS (sdc1): Please umount the filesystem and rectify the problem(s)
    
  • RAID 控制器中的设备因为不明的原因处于离线状态。

  • 在一个命令超时后,一个 smartpqi 设备在驱动程序执行重置操作后处于离线状态
  • 在一个命令超时后,驱动程序会执行重置操作,之后一个 smartpqi 设备会处于离线状态。

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • smartpqi 驱动程序

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