Veritas Storage Foundation™ and High Availability Solutions ...
Veritas Storage Foundation™ and High Availability Solutions ... Veritas Storage Foundation™ and High Availability Solutions ...
148Veritas Cluster Server: Configuring Oracle VM Server for SPARC for high availabilityConfiguring VCS to manage a Logical Domain using services from multiple I/O domainsNICnicres2(Device @primary2= nxge3Device @alternate2 = nxge1)Phantom ph4 ()Configure a service group to monitor services from multiple I/OdomainsConfigure a service group for the AlternateIO resource to monitor storage andnetwork services that are exported from back-end devices to a Logical Domain.Configuration notes for the service group:■■■■■Configure the service group as a parallel or a failover service group. See, Typeof service group configuration for the AlternateIO resource.If multiple storage services are exported to a Logical Domain, you can configureseparate service groups to monitor each of the storage services. For example,you can configure separate service groups to monitor LUN and ZFS volumestorage services.The SystemList attribute of the service group must contain only host namesof the control domains present on each physical system in the cluster.Localize the StorageSG attribute of the service group with the list of the storageservice groups configured for each node.Enable preonline trigger for a fail over type service group# hagrp -modify aiosg TriggerPath bin/AlternateIOwhere aiosg is the name of the service group# hagrp -modify aiosg TriggersEnabled PREONLINEType of service group configuration for the AlternateIOresourceService group typeCondition
Veritas Cluster Server: Configuring Oracle VM Server for SPARC for high availabilityConfiguring VCS to manage a Logical Domain using services from multiple I/O domains149ParallelIf storage services are simultaneously accessible to all nodesin the cluster, the service group of the AlternateIO resourcemust be configured as a parallel service group.For example, shared LUNs, shared Disks, CVM Volume.Fail overIf storage services must be accessible only on one physicalsystem (control domain and alternate I/O domain) in thecluster, configure the service group of the AlternateIO resourceas a failover service group.For example, zpool.Configure the AlternateIO resourceThe AlternateIO resource monitors storage and network services that are exportedto a guest Logical Domain. The AlternateIO resource is not dependent on storageor network resources. However, its state depends upon the state of storage ornetwork service groups.Figure 6-17shows that the AlternateIO resource does not have any dependencyon storage or network resources.
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<strong>Veritas</strong> Cluster Server: Configuring Oracle VM Server for SPARC for high availabilityConfiguring VCS to manage a Logical Domain using services from multiple I/O domains149ParallelIf storage services are simultaneously accessible to all nodesin the cluster, the service group of the AlternateIO resourcemust be configured as a parallel service group.For example, shared LUNs, shared Disks, CVM Volume.Fail overIf storage services must be accessible only on one physicalsystem (control domain <strong>and</strong> alternate I/O domain) in thecluster, configure the service group of the AlternateIO resourceas a failover service group.For example, zpool.Configure the AlternateIO resourceThe AlternateIO resource monitors storage <strong>and</strong> network services that are exportedto a guest Logical Domain. The AlternateIO resource is not dependent on storageor network resources. However, its state depends upon the state of storage ornetwork service groups.Figure 6-17shows that the AlternateIO resource does not have any dependencyon storage or network resources.