How to Configure a Mirrored Root Pool (SPARC or x86/VTOC)
Prepare the second disk to attach to the root pool as follows:
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SPARC: Confirm that the disk has an SMI (VTOC) disk label and that slice 0 contains the bulk of the disk space. If you need to relabel the disk and create a slice 0, see How to Replace a ZFS Root Pool Disk in Managing Devices in Oracle Solaris 11.4 .
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x86: Confirm that the disk has an
fdisk
partition, an SMI disk label, and a slice 0. If you need to repartition the disk and create a slice 0, see Modifying Slices or Partitions in Managing Devices in Oracle Solaris 11.4 .
This procedure describes how to convert the default root pool installation into a redundant configuration. This procedure applies to certain x86 systems and SPARC systems without GPT-aware firmware whose disks have the SMI (VTOC) label.