Upgrading IIS Cluster Resources

Important   The clustering features described in this section are available only with Windows 2000 Advanced Server.

IIS supports upgrades and rolling upgrades of Cluster service resources. An upgrade of IIS Cluster service resources requires that any clustered IIS resources be taken offline during the process of upgrading. A rolling upgrade, conversely, allows your clustered IIS resources to be available to clients during the process of upgrading.

 

To complete a rolling upgrade of IIS Cluster service resources
  1. Move all resources from node A to node B.
  2. Upgrade node A.
  3. After successful upgrade, move all resources from node B to node A.
  4. Upgrade node B.

Important   Consult the documentation for all of your clustered resources before attempting a rolling upgrade.

During standard upgrades (that is, non-rolling upgrades), IIS resources must be removed, taken offline, or the list of possible owners must be changed so that the resource can be brought online on only the supported node.

The following tables illustrate the upgrade and rolling upgrade Cluster service configurations that are supported by IIS.

Supported Upgrades

Present Configuration Upgraded Configuration
(node A) IIS 3.0 / Service Pack 3
(node B) IIS 3.0 / Service Pack 3
(node A) IIS 4.0 / Service Pack 3
(node B) IIS 4.0 / Service Pack 3
(node A) IIS 3.0 / Service Pack 4
(node B) IIS 3.0 / Service Pack 4
(node A) IIS 4.0 / Service Pack 4
(node B) IIS 4.0 / Service Pack 4
(node A) IIS 3.0 / Service Pack 4
(node B) IIS 3.0 / Service Pack 4
(node A) IIS 5.0
(node B) IIS 5.0

Supported Rolling Upgrades

Present Configuration Upgraded Configuration
(node A) IIS 3.0 / Service Pack 3
(node B) IIS 3.0 / Service Pack 3
(node A) IIS 3.0 / Service Pack 4
(node B) IIS 3.0 / Service Pack 4
(node A) IIS 4.0 / Service Pack 3
(node B) IIS 4.0 / Service Pack 3
(node A) IIS 4.0 / Service Pack 4
(node B) IIS 4.0 / Service Pack 4
(node A) IIS 4.0 / Service Pack 4
(node B) IIS 4.0 / Service Pack 4
(node A) IIS 5.0
(node B) IIS 5.0

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