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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.


This document describes the Versaboot implementation on M7 and M8 SuperCluster


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.


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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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