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

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











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

























    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























      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





      share












      share










      share



      share










      asked 56 secs ago









      Railander

      183




      183

























          active

          oldest

          votes











          Your Answer







          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f475153%2fhow-to-boot-from-mdadm-raid1-without-marking-drive-as-failed%23new-answer', 'question_page');

          );

          Post as a guest



































          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes















           

          draft saved


          draft discarded















































           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f475153%2fhow-to-boot-from-mdadm-raid1-without-marking-drive-as-failed%23new-answer', 'question_page');

          );

          Post as a guest













































































          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Bahrain

          Postfix configuration issue with fips on centos 7; mailgun relay