- Notes, cautions, and warnings
- Overview
- Getting Started with ECS
- Storage Pools, VDCs, and Replication Groups
- Authentication Providers
- Namespaces
- Users and Roles
- Identity and Access Management (S3)
- Buckets
- File Access
- Introduction to file access
- ECS multi-protocol access
- Working with NFS exports in the ECS Portal
- Working with user/group mappings in the ECS Portal
- ECS NFS configuration tasks
- Mount an NFS export example
- NFS access using the ECS Management REST API
- NFS WORM (Write Once, Read Many)
- S3A support
- Geo-replication status
- Maintenance
- Certificates
- ECS Settings
- ECS Outage and Recovery
- Advanced Monitoring
- Advanced Monitoring
- View Advanced Monitoring Dashboards
- View mode
- Export CSV
- Data Access Performance - Overview
- Data Access Performance - by Namespaces
- Data Access Performance - by Nodes
- Data Access Performance - by Protocols
- Disk Bandwidth - by Nodes
- Disk Bandwidth - Overview
- Node Rebalancing
- Process Health - by Nodes
- Process Health - Overview
- Process Health - Process List by Node
- Recovery Status
- SSD Read Cache
- Tech Refresh: Data Migration
- Top Buckets
- Automatic Metering Reconstruction
- Share Advanced Monitoring Dashboards
- View Advanced Monitoring Dashboards
- Flux API
- Dashboard APIs
- Advanced Monitoring
ECS 3.5.0.1 Administration Guide
Edit a replication group
You can change the name of the replication group or change the set of VDCs and storage pools in the replication group.
Prerequisites
This operation requires the System Administrator role in ECS.
About this task
CAUTION In a multisite federation, you can edit a replication group (RG) and choose to delete a VDC from one or more replication groups to which it belongs. Removing a VDC from a RG no longer removes the VDC from the federation. It only removes it from the RG and triggers recovery for that RG. In ECS, each object has a primary, or owning VDC. The time that is taken to complete this failover process depends on the amount of data that must be moved. If you created the replication group with the
Replicate to All Sites setting turned on, the time taken to move all data to the remaining sites is short, as a copy exists at all sites.
You cannot edit the Replicate to All Sites or Geo Replication Type settings. After you set these options when you first create the replication group, they cannot be changed.
Steps
- In the ECS Portal, select .
- On the Replication Group Management page, beside the replication group you want to edit, click Edit.
-
On the
Edit Replication Group page,
- To modify the replication group name, in the Name field, type the new name.
- To add a VDC to the replication group, click Add VDC and select the VDC and storage pool from the list.
- To delete a VDC from the replication group, click the
Delete button beside the VDC (and its storage pool).
CAUTION
- Deleting a VDC from one or more replication groups to which it belongs means that you are removing this VDC from the replication group and not from the federation.
- VDC removed from a specific Replication group cannot be added back to the same replication group after deletion.
- Ensure that Geo replication is up-to-date. Stop all writes to the VDC.
- Ensure that the nodes are shut down only for failing (PSO) VDC at the federation level.
- Recovery is initiated only when the VDC is removed from the replication group. Proceed to do that next.
- This VDC will display a status of Permanently Failedfor failed VDC and not for removed VDC.
- In case of failing VDC, to reconstruct this VDC, it must be added as a new site. Any previous data will be lost, as that data will have failed over to other sites in the federation.
- Click Save.
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