Erasure coding topology replacement

You cannot add or remove HCP systems in an erasure coding topology. You also cannot add, remove, or replace replication links in an erasure coding topology. If you want to change a topology in any of these ways, you need to retire the topology and create a new one to replace it.

After you retire an erasure coding topology, you cannot make it active again. If you inadvertently retire a topology, you can replace it with a new topology that includes the same systems and links.

To replace a system in an active erasure coding topology, you don't need to create a new topology. Instead, you use the procedure for replacing a failed system. At the end of this procedure, replication restarts with the replacement system, and the replacement system receives full copies of object data or chunks for objects, as determined by the erasure coding topology.

NoteTo replace a system in an active erasure coding topology with a system that has a different domain name or different IP addresses, you need to reconfigure the replication links that connect other systems in the topology to the system you're replacing. When reconfiguring the links, ensure that they all connect to the same replacement system. If the links connect to different systems, the erasure coding topology will no longer be functional.