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Oracle Solaris ZFS Administration Guide
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Document Information

Preface

1.  Oracle Solaris ZFS File System (Introduction)

2.  Getting Started With Oracle Solaris ZFS

3.  Oracle Solaris ZFS and Traditional File System Differences

4.  Managing Oracle Solaris ZFS Storage Pools

5.  Installing and Booting an Oracle Solaris ZFS Root File System

Installing and Booting an Oracle Solaris ZFS Root File System (Overview)

ZFS Installation Features

Oracle Solaris Installation and Oracle Solaris Live Upgrade Requirements for ZFS Support

Oracle Solaris Release Requirements

General ZFS Storage Pool Requirements

Disk Space Requirements for ZFS Storage Pools

ZFS Storage Pool Configuration Requirements

Installing a ZFS Root File System (Initial Installation)

How to Create a Mirrored Root Pool (Post Installation)

Installing a ZFS Root File System (Oracle Solaris Flash Archive Installation)

Installing a ZFS Root File System (Oracle Solaris JumpStart Installation)

JumpStart Keywords for ZFS

JumpStart Profile Examples for ZFS

JumpStart Issues for ZFS

Migrating a UFS Root File System to a ZFS Root File System (Oracle Solaris Live Upgrade)

ZFS Migration Issues With Oracle Solaris Live Upgrade

Using Oracle Solaris Live Upgrade to Migrate to a ZFS Root File System (Without Zones)

Using Oracle Solaris Live Upgrade to Migrate or Upgrade a System With Zones (Solaris 10 10/08)

How to Migrate a UFS Root File System With Zone Roots on UFS to a ZFS Root File System (Solaris 10 10/08)

How to Configure a ZFS Root File System With Zone Roots on ZFS (Solaris 10 10/08)

How to Upgrade or Patch a ZFS Root File System With Zone Roots on ZFS (Solaris 10 10/08)

Using Oracle Solaris Live Upgrade to Migrate or Upgrade a System With Zones (at Least Solaris 10 5/09)

Supported ZFS with Zone Root Configuration Information (at Least Solaris 10 5/09)

How to Create a ZFS BE With a ZFS Root File System and a Zone Root (at Least Solaris 10 5/09)

How to Upgrade or Patch a ZFS Root File System With Zone Roots (at Least Solaris 10 5/09)

How to Migrate a UFS Root File System With a Zone Root to a ZFS Root File System (at Least Solaris 10 5/09)

ZFS Support for Swap and Dump Devices

Adjusting the Sizes of Your ZFS Swap Device and Dump Device

Troubleshooting ZFS Dump Device Issues

Booting From a ZFS Root File System

Booting From an Alternate Disk in a Mirrored ZFS Root Pool

SPARC: Booting From a ZFS Root File System

x86: Booting From a ZFS Root File System

Resolving ZFS Mount-Point Problems That Prevent Successful Booting (Solaris 10 10/08)

How to Resolve ZFS Mount-Point Problems

Booting For Recovery Purposes in a ZFS Root Environment

How to Boot ZFS Failsafe Mode

How to Boot ZFS From Alternate Media

Recovering the ZFS Root Pool or Root Pool Snapshots

How to Replace a Disk in the ZFS Root Pool

How to Create Root Pool Snapshots

How to Recreate a ZFS Root Pool and Restore Root Pool Snapshots

How to Roll Back Root Pool Snapshots From a Failsafe Boot

6.  Managing Oracle Solaris ZFS File Systems

7.  Working With Oracle Solaris ZFS Snapshots and Clones

8.  Using ACLs to Protect Oracle Solaris ZFS Files

9.  Oracle Solaris ZFS Delegated Administration

10.  Oracle Solaris ZFS Advanced Topics

11.  Oracle Solaris ZFS Troubleshooting and Pool Recovery

A.  Oracle Solaris ZFS Version Descriptions

Index

Installing and Booting an Oracle Solaris ZFS Root File System (Overview)

Starting in the Solaris 10 10/08 release, you can install and boot from a ZFS root file system in the following ways:

After a SPARC based or an x86 based system is installed with or migrated to a ZFS root file system, the system boots automatically from the ZFS root file system. For more information about boot changes, see Booting From a ZFS Root File System.

ZFS Installation Features

The following ZFS installation features are provided in this Solaris release:

The following installation features are not provided in this release:

Oracle Solaris Installation and Oracle Solaris Live Upgrade Requirements for ZFS Support

Ensure that the following requirements are met before attempting to install a system with a ZFS root file system or attempting to migrate a UFS root file system to a ZFS root file system.

Oracle Solaris Release Requirements

You can install and boot a ZFS root file system or migrate to a ZFS root file system in the following ways:

General ZFS Storage Pool Requirements

The following sections describe ZFS root pool space and configuration requirements.

Disk Space Requirements for ZFS Storage Pools

The required minimum amount of available pool space for a ZFS root file system is larger than for a UFS root file system because swap and dump devices must be separate devices in a ZFS root environment. By default, swap and dump devices are the same device in a UFS root file system.

When a system is installed or upgraded with a ZFS root file system, the size of the swap area and the dump device are dependent upon the amount of physical memory. The minimum amount of available pool space for a bootable ZFS root file system depends upon the amount of physical memory, the disk space available, and the number of boot environments (BEs) to be created.

Review the following disk space requirements for ZFS storage pools:

ZFS Storage Pool Configuration Requirements

Review the following ZFS storage pool configuration requirements: