HP Storage Mirroring Software - Manual (Page 16)

1 - 11
Chained
Description The source servers sends replicated data to a target server, which acts as a
source server and sends data to a final target server, which is often offsite.
Applications This is a convenient approach for integrating local high availability with offsite
disaster recovery. This configuration moves the processing burden of WAN
communications from the source server to the target/source server.
After failover in a one-to-one, many-to-one, or one-to-many configuration,
the data on the target is no longer protected. This configuration allows
failover from the first source to the middle machine, with the third machine
still protecting the data.
Considerations The target/source server could become a single point of failure for offsite data
protection.
Source Target and Source Target