PERC RAID Controller/Linux Megaraid Driver resets resulting in intermittent loss of access to all drives on system

Solution Unverified - Updated -

Issue

  • The RAID contorller is being reset by the driver after waiting 175 seconds for the controller to respond

    Aug 19 16:29:46 hostname kernel: megasas: [ 0]waiting for 179 commands to complete for scsi0
    Aug 19 16:29:51 hostname kernel: megasas: [ 5]waiting for 179 commands to complete for scsi0
    Aug 19 16:29:56 hostname kernel: megasas: [10]waiting for 179 commands to complete for scsi0
    Aug 19 16:30:01 hostname kernel: megasas: [15]waiting for 179 commands to complete for scsi0
    Aug 19 16:30:06 hostname kernel: megasas: [20]waiting for 179 commands to complete for scsi0
    Aug 19 16:30:11 hostname kernel: megasas: [25]waiting for 179 commands to complete for scsi0
    Aug 19 16:30:16 hostname kernel: megasas: [30]waiting for 179 commands to complete for scsi0
    Aug 19 16:32:42 hostname kernel: megasas: waitingfor controller reset to finish
    Aug 19 16:32:46 hostname kernel: megaraid_sas: pending commands remain after waiting, will reset adapter scsi0.
    Aug 19 16:32:46 hostname kernel: megaraid_sas: resetting fusion adapter scsi0.
    Aug 19 16:32:47 hostname kernel: megasas: waitingfor controller reset to finish
    Aug 19 16:32:52 hostname kernel: megasas: waitingfor controller reset to finish
    Aug 19 16:32:57 hostname kernel: megasas: Waiting for FW to come to ready state
    Aug 19 16:32:57 hostname kernel: megasas: waitingfor controller reset to finish
    Aug 19 16:33:02 hostname kernel: megasas: waitingfor controller reset to finish
    Aug 19 16:33:06 hostname kernel: megasas: FW now in Ready state
    Aug 19 16:33:06 hostname kernel: megasas:IOC Init cmd success
    Aug 19 16:33:07 hostname kernel: megaraid_sas 0000:02:00.0: firmware type#011: Extended VD(240 VD)firmware
    Aug 19 16:33:07 hostname kernel: megaraid_sas 0000:02:00.0: controller type#011: MR(2048MB)
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megasas:span 0 rowDataSize 1
    Aug 19 16:33:07 hostname kernel: megaraid_sas: Reset successful for scsi0.
    

Environment

  • Red Hat Enterprise Linux 7
    • all 7.0 and 7.1 kernels
    • all version of 7.2 prior to kernel-3.10.0-327.49.2.el7
    • all version of 7.3 prior to kernel-3.10.0-514.6.1.el7
  • Red Hat Enterprise Linux 6
    • all version prior to kernel-2.6.32-696.el6

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