Introduction to resource discovery of OceanStor ReplicationDirector

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In order to provide disaster recovery for protected objects, OceanStor ReplicationDirector needs to discover the hosts where protected objects (such as databases) reside, storage devices associated with the protected objects, vCenter servers associated with the VMware virtualization environment, cloud platforms associated with Huawei virtualization environment, and VRG.

Other related questions:
Introduction to OceanStor ReplicationDirector reprotection
If planned migration or fault recovery has been performed for a recovery plan, you can implement reprotection for the recovery plan. Reprotection protects data at the disaster recovery site once devices at the production site recover from disasters, simplifying failback. This operation can be performed only in the disaster recovery management system at the disaster recovery site.

Introduction to sites of the OceanStor ReplicationDirector
Resources in a disaster recovery management system are organized by site. You can configure disaster recovery services at a site or between sites. Create a local or remote site based on the disaster recovery network mode (local or remote). Sites are categorized as local sites and remote sites by location. - Local site: a site managed by the local OceanStor ReplicationDirector server. - Remote site: a site managed by the remote OceanStor ReplicationDirector server. Sites are categorized as production sites and disaster recovery sites by protection relationship. - Production site: a site where a production system resides. Service systems of enterprises run at the protected production site. - Disaster recovery site: a site where a disaster recovery system resides. The disaster recovery site provides backup and disaster recovery for the production site. If a disaster occurs, the disaster recovery site can be used to recover services.

Resource mapping creation on OceanStor ReplicationDirector
If the protected object is a FusionSphere VM, then map virtualization resources from the protected site to the disaster recovery site so that the VM can be recovered at the disaster recovery site based on the target attributes specified during resource mapping. For FusionSphere VMs, different resource mappings must be created due to differences in disaster recovery methods and applicable cloud platforms. 1. Storage replication disaster recovery For VMs built on the FusionCompute cloud platform, you must create resource mappings for port groups and clusters/hosts. For VMs built on the FusionManager cloud platform, you must create resource mappings for clusters and networks. Resource mappings for security groups are optional. If the VMs that require disaster recovery have been added into a security group, you must create resource mappings for that security group. 2. Host replication disaster recovery: For VMs built on the FusionCompute cloud platform, you must create resource mappings for clusters/hosts, port groups, data stores, and Virtual Replication Gateways (VRGs). For VMs built on the FusionManager cloud platform, you must create resource mappings for clusters, networks, and VRGs. Resource mappings for security groups are optional. If the VMs that require disaster recovery have been added into a security group, you must create resource mappings for that security group. One resource at the production site or disaster recovery site can be mapped to only one resource of the same type. In remote disaster recovery mode, this operation must be performed at the production site.

Resource addition of OceanStor ReplicationDirector
If resources such as hosts or associated storage devices have been added to a new local site or remote site, ignore the resource addition step. If the required resources are unavailable when a site is created, or new resources need to be added during subsequent operations, perform the resource addition step.

Introduction to fault recovery of OceanStor ReplicationDirector
If data or applications at a production site become unavailable due to disasters or faults, you need to recover data from a disaster recovery site. Fault recovery is performed only in the disaster recovery management system at the disaster recovery site. The latest backup data at the disaster recovery site is used to recover data.

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