PRIMECLUSTER Global Disk Services Configuration and Administration Guide 4.1 (Solaris(TM) Operating System)
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Chapter 1 Function> 1.2 Functions for High Availability> 1.2.1 Disk Mirroring

1.2.1.1 System Disk Mirroring

System disk mirroring is the function that mirrors the system disk on which the running Solaris(TM) Operating System has been installed.

If a system disk failure occurs, the entire system probably stops and even booting will become impossible, and operating system reinstallation will be required. As a result, service stop may remain for a long time.

System disk mirroring ensures continuous system operation even when a failure occurs in part of the disks.

[Figure: System Disk Mirroring]



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