XenServer Administration Handbook by Mackey, Tim -- Read -- Imperial Library of Trantor

Index

Preface

How This Book Is Organized Who This Book Is Written For About Us Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments

From Jesse From Tim

I. Designing a Successful XenServer Deployment 1. What Is a XenServer?

The Xen Hypervisor Tooling for Xen Virtualization

2. Core Architecture and Critical Components

XenServer Isn’t Linux, but dom0 Is

Architecture Interface

XenCenter: A Graphical Xen Management Tool Core Processes

XAPI xhad xenopsd xcp-rrdd xcp-networkd SM perfmon mpathalert snapwatchd stunnel xenconsoled xenstored squeezed

Critical Configuration Files

/boot/extlinux.conf /etc/hosts /etc/hostname /etc/multipath.conf /etc/resolv.conf /etc/iscsi/initiatorname.iscsi /etc/xensource/

boot_time_cpus /etc/xensource/bugtool/ /etc/xensource/db.conf /etc/xensource/installed-repos/ /etc/xensource/master.d/ /etc/xensource/network.conf /etc/xensource/pool.conf /etc/xensource/ptoken /etc/xensource/scripts/ /etc/xensouce/xapi-ssl.conf /etc/xensouce/xapi-ssl.pem /etc/ntp.conf /var/xapi/ /var/patch/ and /var/patch/applied/

XenServer Object Relationships

Network Objects

pif network vif bond

GPU Objects

pGPU gpu-group vgpu

Storage Objects

3. Installing XenServer

Manual Installation Unattended Installation Boot from SAN Supplemental Packs Third-Party Driver Disks

4. Design Assumptions Impacting Deployment

Pooled Hosts Versus Standalone Hosts

Pool Master Versus Pool Member Processor Compatibility Within Pools Resource Pool Sizing When to Create a New Pool

Defining a Management Paradigm

Provisioning Tools Multiple XenCenter Administrators

Hardware Compatibility

Host Requirements BIOS, Firmware, and Driver Updates

Shared Versus Local Storage

Storage Provisioning Model

Thick provisioning Thin provisioning Sparse allocation

Storage I/O Operations Per Second (IOPS)

Validating Local Storage

Memory Management

Fixed Memory Concepts

Host memory Hypervisor memory dom0 memory

Dynamic VM Memory Management

Implementation Enabling dynamic memory management Migration of VMs to other hosts

Planning for Infrastructure Failure

Host Failure Protection

Protection levels

Preventing Aggressive Fencing Capacity Planning During Failure No Single Points of Failure

5. Deployment Blueprint

Start with Storage

Local Versus Shared Storage NFS Versus iSCSI Fibre Channel and HBAs Multipath Configurations

Define Network Topologies

Bonding and LACP

active-backup bonding balance-slb bonding LACP bonds

Jumbo Frames

6. Understanding Guest VM Types

HVM Guests PV Guests Microsoft Windows in XenServer HVM versus Linux PV

II. Management Recipes 7. Installation Recipes

Manual Installation Creating a Bootable USB Device Unattended Installation Boot from SAN Installation of Supplemental Packs Driver Disks Slipstreaming Drivers and Supplemental Packs

8. Planning for Upgrades

Security Patches Learning of a New Hotfix or Patch Determine if a Hotfix Is Present Applying Patches to XenServer

9. Log Management

Log Configuration Log Rotation Log Aggregation Throttling SNMP ACKs

10. Backup Strategies

Backup dom0 Pool and XAPI Database Backup VM Backup Metadata Backup and Restore Portable Storage Repositories

11. User Management

Enabling Roles Based Authentication Configuring Users Removing Users Disable External Authentication Privileged (Root) Password Recovery

12. SSL Certificates

Apply a Commercial Certificate Create a New Self-Signed Certificate

13. Hardware Maintenance

Upgrades, Support, and Hardware Storage

Adding Local Storage

Problem Solution Discussion

USB Storage for Backup

Problem Solution Discussion

Networking

Replacing a NIC

Problem Solution Discussion

Hosts

Adding a New Host to a Pool

Problem Solution Discussion

Recovery from Host Failure When HA Is Enabled

Problem Solution Discussion

Index

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