Replacing failed disk on hardware Raid 1 mirror

Hello all,
I have an old T2000 Server with a hardware Raid1 mirror. The secondary disk failed and I purchased a new one. Its hot swap so I plugged it in and when I do a #radctl command it shows that it is in SYNC status but it never gets back to optimal. I am unfamiliar with this process. What needs to be done to get the new disk to be synced properly? I waited hours to see if it would succeed but never did. Any help is greatly appreciated.
Thank You

It may take several hours depending on system activity and on disk size.

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  • Systemd-fsck complains that my hardware raid is in use and fail init

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    ActiveState=active
    SubState=mounted
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    InactiveExitTimestampMonotonic=130570087
    ActiveEnterTimestamp=Sat, 2013-01-12 17:18:27 EET
    ActiveEnterTimestampMonotonic=130631572
    ActiveExitTimestampMonotonic=0
    InactiveEnterTimestamp=Sat, 2013-01-12 17:16:22 EET
    InactiveEnterTimestampMonotonic=4976341
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    CanReload=yes
    CanIsolate=no
    StopWhenUnneeded=no
    RefuseManualStart=no
    RefuseManualStop=no
    AllowIsolate=no
    DefaultDependencies=no
    OnFailureIsolate=no
    IgnoreOnIsolate=yes
    IgnoreOnSnapshot=no
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    ControlGroup=cpu:/system/home1.mount name=systemd:/system/home1.mount
    NeedDaemonReload=no
    JobTimeoutUSec=0
    ConditionTimestamp=Sat, 2013-01-12 17:18:27 EET
    ConditionTimestampMonotonic=130543582
    ConditionResult=yes
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    Type=ext4
    TimeoutUSec=1min 30s
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    ControlPID=0
    DirectoryMode=0755
    Result=success
    UMask=0022
    LimitCPU=18446744073709551615
    LimitFSIZE=18446744073709551615
    LimitDATA=18446744073709551615
    LimitSTACK=18446744073709551615
    LimitCORE=18446744073709551615
    LimitRSS=18446744073709551615
    LimitNOFILE=4096
    LimitAS=18446744073709551615
    LimitNPROC=1031306
    LimitMEMLOCK=65536
    LimitLOCKS=18446744073709551615
    LimitSIGPENDING=1031306
    LimitMSGQUEUE=819200
    LimitNICE=0
    LimitRTPRIO=0
    LimitRTTIME=18446744073709551615
    OOMScoreAdjust=0
    Nice=0
    IOScheduling=0
    CPUSchedulingPolicy=0
    CPUSchedulingPriority=0
    TimerSlackNSec=50000
    CPUSchedulingResetOnFork=no
    NonBlocking=no
    StandardInput=null
    StandardOutput=journal
    StandardError=inherit
    TTYReset=no
    TTYVHangup=no
    TTYVTDisallocate=no
    SyslogPriority=30
    SyslogLevelPrefix=yes
    SecureBits=0
    CapabilityBoundingSet=18446744073709551615
    MountFlags=0
    PrivateTmp=no
    PrivateNetwork=no
    SameProcessGroup=yes
    ControlGroupModify=no
    ControlGroupPersistent=no
    IgnoreSIGPIPE=yes
    NoNewPrivileges=no
    KillMode=control-group
    KillSignal=15
    SendSIGKILL=yes
    Last edited by hseara (2013-01-13 19:31:00)

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    [Clint's comment: The GUI displayed the true status of the RAID array, as you know disk#3 is failed out from the RAID6 array.]
    6. [RAID6 Disk Volume: Drive 1 2 3 4 5 6] Rebuilding completed.
        Now "Raid Managment" view says something like: 1 2 4 5 6 In degraded mode... and number 3 is also missing here???
    [Clint's comment: System continue the process of resync without disk #3 and after it completed. It would gave user in degraded mode because disk#3 is not in the array.]
    So I have rebooted the NSS without touching disk in bay .
    7. System started.
    8. [RAID6 Disk Volume: Drive 1 2 3 4 5 6] Drive 3 added into the volume
    9. [RAID6 Disk Volume: Drive 1 2 3 4 5 6] Start rebuilding.
    [Clint's comment: by reboot the system. There is a process of checking each disk during boot up to verify each disk is physically healthy (no bad blocks, if it is, fix it before boot to Linux OS and execute codes to bring NSS to operational).  The system did know the status of each disk and in your case, because disk #3 was not in the array. System checked and verified to correct some bad blocks that was out of sync in the array.  After fixed some bad blocks, it automatically add that disk to the array and required resynchronize to make sure all disks are in the RAID6 array, this is why you were seeing "Start rebuilding" after the reboot. And because the correction was made in disk #3, you had the successful rebuild RAID6 array.]
    Hope that helps!
    Regards,
    -Clint

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    As others have stated, this is a potentially catastrophic event.  Consider yourself lucky, as hard drives usually just fail wihtout warning.  Your disk could die at any time.  This is a mechanical / physical failure, not software related.
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