SuperCluster M7/M8 boot archive and bpool reference document (Doc ID 2485463.1)

Last updated on SEPTEMBER 18, 2023

Applies to:

Oracle SuperCluster Specific Software
Oracle SuperCluster M8 Hardware
Oracle SuperCluster M7 Hardware
Information in this document applies to any platform.

Purpose

This document describes the Versaboot implementation on M7 and M8 SuperCluster

Scope

This document is intended to explain how the boot archives and the associated bpool are configured on M7 and M8 SuperCluster and provide details on health check features and alternate boot methods to use in an emergency. It is intended for use by anyone with support or administration responsibilities for M7 and M8 SuperCluster. This document does not apply to T4, T5 and M6 SuperClusters since they do not use Versaboot.

Details

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In this Document

Introduction to Solaris boot archives

Introduction to Versaboot

Introduction to bpool

Versaboot boot console output

Introduction to Trampoline boot

Trampoline boot console output

Versaboot configurations for the different SuperCluster domain and configuration types

Single domain PDom

Control domain with a single CMIOU (U1-1 config)

Control domain with multiple CMIOUs (U2-1, U3-1 and U4-1 configs)

Two domain PDom

Control domain with a single CMIOU (U2-2 config)

Last domain with two CMIOUs (U4-2 config)

Middle domains and IO domains

ssctuner Versaboot health checks

Example ssctuner health check warnings

Infiniband networks and iSCSI devices

Alternate boot methods

Creating an emergency fallback-miniroot vdisk for use by non-control domains

iSCSI issues during boot

Repairing bpool

eUSB or CMIOU replacement

bpool is destroyed and bpool configuration is missing or corrupt

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