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Because certain commands can simultaneously upgrade more than one stage, VMware recommends that you
thoroughly understand the irreversible changes at each stage before you upgrade your production
environments.
To ensure that your datacenter upgrade goes smoothly, you can use vCenter Update Manager to manage the
process for you.
Upgrading Environments with Host Clusters
This example scenario shows how you can use vCenter Update Manager to simplify the host and virtual
machine upgrade process and minimize downtime in environments that include host clusters.
These are the prerequisites for this scenario:
n
You must have VirtualCenter 2.x.
n
You must have vCenter Update Manager.
n
All your hosts must be ESX 3.x/ESXi 3.5.
The following list of tasks provides a high-level overview of the upgrade process.
1 Upgrade VirtualCenter 2.x to vCenter Server 4.0.
a Make sure your database is compatible with vCenter Server 4.0. This release discontinues support for
some database versions and adds support for other database versions. See the Compatibility
Matrixes on the VMware vSphere documentation Web site.
b Make sure that you have the required permissions to perform this procedure. See “Database
Prerequisites,” on page 39.
c Take a full backup of the VirtualCenter 2.x database. See your database documentation.
d Back up the VirtualCenter 2.x SSL certificates. See “Back Up VirtualCenter 2.x,” on page 43.
The downtime required for this upgrade is based on the amount of data in the database. During this time,
you cannot perform provisioning operations, such as cloning or creating virtual machines. The upgrade
from VirtualCenter 2.5 is faster in comparison to the upgrade from VirtualCenter 2.0.x because of
differences in changes to the database schema and the amount of data migration.
After the upgrade, the ESX hosts are automatically reconnected to vCenter Server 4.0. Your VMware High
Availability (HA) and VMware Distributed Resource Scheduler (DRS) clusters are automatically
reconfigured. (Check to ensure that the automatic reconfiguration is successful. In some cases, you might
need to reconfigure the clusters manually.)
For a detailed description of the upgrade procedure, see Chapter 5, “Preparing for the Upgrade to vCenter
Server,” on page 37 and Chapter 6, “Upgrading to vCenter Server 4.0,” on page 45.
2 Install the vSphere Client.
You can install the vSphere Client on the same machine with your previous version of the VI Client. You
must have the previous version of the VI Client to connect to previous versions of VirtualCenter and
ESX/ESXi.
For a detailed description of the procedure, see “Upgrade to the vSphere Client,” on page 56.
3 If your environment has vCenter Converter, upgrade it to the latest version.
4 If your environment has vCenter Guided Consolidation, complete the consolidation plan and then
upgrade it to the latest version.
5 Upgrade to vCenter Update Manager 4.0.
6 Use vCenter Update Manager to upgrade ESX 3.x hosts to ESX 4.0.
vSphere Upgrade Guide
16 VMware, Inc.
- ESXi 4.0 1
- EN-000112-04 1
- 2 VMware, Inc 2
- Contents 3
- 4 VMware, Inc 4
- VMware, Inc. 5 5
- 6 VMware, Inc 6
- Updated Information 7
- 8 VMware, Inc 8
- About This Book 9
- VMware vSphere Documentation 10
- Host Upgrade 11
- Datastore Upgrade 12
- Virtual Machine Upgrade 12
- Licensing 13
- 14 VMware, Inc 14
- Example Upgrade Scenarios 2 15
- 16 VMware, Inc 16
- VMware, Inc. 17 17
- 18 VMware, Inc 18
- VMware, Inc. 19 19
- 20 VMware, Inc 20
- VMware, Inc. 21 21
- (with vCenter Server) 22
- (Without vCenter Server) 23
- 24 VMware, Inc 24
- Changing Host Types 3 25
- 26 VMware, Inc 26
- System Requirements 4 27
- Installation and Storage 28
- Chapter 4 System Requirements 29
- VMware, Inc. 29 29
- ESXi Hardware Requirements 30
- VMware, Inc. 31 31
- 32 VMware, Inc 32
- VMware, Inc. 33 33
- Required Ports 34
- DNS Requirements for vSphere 35
- 36 VMware, Inc 36
- Server 5 37
- 38 VMware, Inc 38
- Database Prerequisites 39
- 40 VMware, Inc 40
- Database Scenarios 41
- 42 VMware, Inc 42
- Back Up VirtualCenter 2.x 43
- 44 VMware, Inc 44
- Upgrade to vCenter Server 45
- 46 VMware, Inc 46
- %TEMP%\VCDatabaseUpgrade.log 47
- 48 VMware, Inc 48
- Existing Database 7 49
- 50 VMware, Inc 50
- VMware, Inc. 51 51
- 52 VMware, Inc 52
- VMware, Inc. 53 53
- 54 VMware, Inc 54
- VMware, Inc 55
- Upgrade to the vSphere Client 56
- License Server Scenarios 57
- Server Upgrade 58
- Restore VirtualCenter 2.x 59
- 60 VMware, Inc 60
- Permissions 9 61
- Datastore Privileges 62
- Network Privileges 62
- Update Datastore Permissions 63
- Update Network Permissions 64
- 4.0/ESXi 4.0 10 65
- 66 VMware, Inc 66
- VMware, Inc. 67 67
- 68 VMware, Inc 68
- VMware, Inc. 69 69
- Upgrading from ESX 2.5.5 70
- VMware, Inc. 71 71
- 72 VMware, Inc 72
- Upgrade ESX Hosts 73
- 74 VMware, Inc 74
- Upgrade ESXi Hosts 75
- 76 VMware, Inc 76
- Hosts 12 77
- Evaluation Period Countdown 78
- VMware, Inc. 79 79
- Upgrades 80
- Roll Back an ESX Upgrade 80
- VMware, Inc. 81 81
- 82 VMware, Inc 82
- Upgrading Virtual Machines 13 83
- About VMware Tools 84
- VMware, Inc. 85 85
- Windows Guest 86
- X Terminal 87
- 88 VMware, Inc 88
- VMware, Inc. 89 89
- 90 VMware, Inc 90
- VMware, Inc. 91 91
- 92 VMware, Inc 92
- VMware, Inc. 93 93
- 94 VMware, Inc 94
- Upgrade Virtual Hardware 95
- 96 VMware, Inc 96
- VMware, Inc. 97 97
- 98 VMware, Inc 98
- Best Practices for Updates 99
- Add a Host to the List 100
- Download Patches and Updates 100
- VMware, Inc. 101 101
- 102 VMware, Inc 102
- VMware, Inc. 103 103
- 104 VMware, Inc 104
- Procedure 105
- 106 VMware, Inc 106
- VMware, Inc. 107 107
- 108 VMware, Inc 108
- VMware, Inc. 109 109
- 110 VMware, Inc 110
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