How to boot from mdadm raid1 without marking drive as failed?

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I've successfully installed a CentOS 7 with 2 HDDs in a raid1 array with mdadm and I can safely boot from either one of them being the BIOS boot drive and even from having either of them unplugged... As long as I mark the drive to be unplugged as failed beforehand.



This obviously concerns me, "what if one of the drives fails before I get the chance to mark it as failed from within the OS?"



Is there a way to circumvent this from an already failed drive?









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    I've successfully installed a CentOS 7 with 2 HDDs in a raid1 array with mdadm and I can safely boot from either one of them being the BIOS boot drive and even from having either of them unplugged... As long as I mark the drive to be unplugged as failed beforehand.



    This obviously concerns me, "what if one of the drives fails before I get the chance to mark it as failed from within the OS?"



    Is there a way to circumvent this from an already failed drive?









    share























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I've successfully installed a CentOS 7 with 2 HDDs in a raid1 array with mdadm and I can safely boot from either one of them being the BIOS boot drive and even from having either of them unplugged... As long as I mark the drive to be unplugged as failed beforehand.



      This obviously concerns me, "what if one of the drives fails before I get the chance to mark it as failed from within the OS?"



      Is there a way to circumvent this from an already failed drive?









      share













      I've successfully installed a CentOS 7 with 2 HDDs in a raid1 array with mdadm and I can safely boot from either one of them being the BIOS boot drive and even from having either of them unplugged... As long as I mark the drive to be unplugged as failed beforehand.



      This obviously concerns me, "what if one of the drives fails before I get the chance to mark it as failed from within the OS?"



      Is there a way to circumvent this from an already failed drive?







      boot mdadm raid1





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      asked 56 secs ago









      Railander

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