Howto Unmirror a File System that can be unmounted Solaris 10

Use this procedure to unmirror a file system that can be unmounted while the system is running.
To unmirror root (/), /var, /usr, or swap, or any other file system that cannot be unmounted while the system is running

      1. Make sure that you have root privilege and that you have a current backup of all data.
      2. Verify that at least one submirror is in the Okay state.
      3. Unmount the file system.
      4. Detach the submirror that will continue to be used for the file system.
      5. Clear the mirror and remaining subcomponents.
      6. Edit the /etc/vfstab file to use the component detached in Step4 , if necessary.
      7. Remount the file system.

Example : Unmirroring the /opt File System

Edit the /etc/vfstab file so that the entry for /opt is changed from d3 to the underlying slice or volume


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Unix/Linux enthusiasts, good working experience with SAN, NAS, Linux, Solaris, AIX, VMWare & Graphic Design. Certified for Solaris Admin, EMC & HDS Storage.

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