Why Use RAID-1 Volumes?
During the installation or upgrade, you can create RAID-1 volumes to duplicate your
system data over multiple physical disks. By duplicating your data over separate disks,
you can protect your data from disk corruption or a disk failure.
The Solaris custom JumpStart and Solaris Live Upgrade installation methods use the Solaris
Volume Manager technology to create RAID-1 volumes that mirror a file system. Solaris
Volume Manager provides a powerful way to reliably manage your disks and data
by using volumes. Solaris Volume Manager enables concatenations, stripes, and other complex configurations.
The custom JumpStart and Solaris Live Upgrade installation methods enable a subset of
these tasks, such as creating a RAID-1 volume for the root (/) file system.
You can create RAID-1 volumes during your installation or upgrade, eliminating the need
to create them after the installation.