PRIMECLUSTERGlobal Disk Services Configuration and AdministrationGuide 4.5

Chapter 7 How to Set and Cancel System Disk Mirroring Using Commands

This chapter describes how to set and cancel a system disk mirroring using commands.

The following three types are available for system disk mirroring.

• 7.1 System Disk Mirroring in a ZFS Boot Environment (GDS Mirroring)

• 7.2 System Disk Mirroring in a ZFS Boot Environment (ZFS Mirroring)

• 7.3 System Disk Mirroring in a UFS Boot Environment

Note

SAN boot environment for Solaris 11.4 or later (FC connection)

When mirroring the system disk in a SAN boot environment (FC connection), apply ssd driver to the system disk.

If you performed a new installation of Solaris 11.4 or later, sd driver is applied, you need to change it to ssd driver.

You can check the applied driver as follows:

1. Check the major number of the system disk. In the following example, the major number is 203.

   # ls -lL /dev/rdsk/c0t500003948822616Cd0s2
   crw-r----- 1 root sys 203, 26 May 17 09:44 /dev/rdsk/c0t500003948822616Cd0s2

2. Check the driver of the major number checked in the step 1. In the following example, the driver is sd.

   # grep 203 /etc/name_to_major
   sd 203

See Solaris manual for how to change the driver.