# Change History

Released On | Description
--- | ---
2022-08-31 | Deleted the yearly/monthly billing from corresponding parameter descriptions.
2021-11-17 | Modified the following content: Added a note in What Are the Precautions If I Log In to the Production Site Server Using a Key Pair?.

2019-11-19

Modified the following content:

- Added a parameter example in Performing a DR Drill.
- Added a parameter example in Creating a Replication Pair.

2019-09-10 | Modified the following content: Modified the table heading and parameter example in Managing Protected Instance Tags.

2019-08-29

Added the following content:

- Added the tag function in Managing Protected Instance Tags.
- What Can I Do If hostname of the Production Site Server and DR Site Server Are Different After a Planned Failover or Failover?

Modified the following content:

- Modified Enable Protection Again to Reprotect in Performing Reprotection.
- Deleted the restriction that the specifications of the DR site server must be consistent with those of the production site server in Constraints.

2019-06-10 | Accepted for RM-487 and RM-351.

2019-06-05

Modified the following content:

- Added scenario diagrams in Supported DR Scenarios.

2019-05-24

Added the following content:

- Supported DR Scenarios

Modified the following content:

- Modified the scenario descriptions in Modifying Specifications of a Protected Instance.
- Added scenario descriptions in Performing a DR Drill.

2019-05-09

Deleted the following content:

- What Are the Standards of DR?
- What Can I Do If an Error Occurred When I Expand the Replication Pair Capacity?
- What Can I Do When My Protection Group Quotas Are Insufficient?

Modified the following content:

- Added a note in Performing a DR Drill.
- Adjusted the structure in Management.
- Optimized descriptions in Modifying Specifications of a Protected Instance.
- Replaced screenshots in Deleting a Replication Pair.

- What Can I Do When the EIP Cannot Be Pinged After I Perform a Planned Failover for a Protection Group Containing a SUSE Server?
- What Can I Do If the NIC Names of the DR Drill Server and Production Site Server Are Different?

2019-04-17

Modified the following content:

- Modified the description in section "Compatible Applications and Versions."
- Deleted the description of the scenario and modified the prerequisites in Step 2: Create a Protected Instance.
- Modified the description of the scenario and prerequisites in Performing a DR Drill.
- Added a note in Deleting a DR Drill.

2019-03-30

Added the following content:

- Section "Compatible Applications and Versions"
- Descriptions of the DR drill function in Performing a DR Drill.
- Managing DR Drills
- What Can I Do If the NIC Names of the DR Drill Server and Production Site Server Are Different?

Modified the following content:

- Modified descriptions of modifying the specifications of the production site server and DR site server in Modifying Specifications of a Protected Instance.
- Deleted concepts of the source end, target end, preferred end, and added the concepts of the production site and DR site.

Deleted the following content:

- Section "Performing a Planned Failback"
- Section "Performing a Failback"

2018-11-08

Added the following content:

- Adding a NIC
- Deleting a NIC
- Interconnecting with CTS
- Relationships with Other Services

2018-11-07 | Accepted in OTC 3.2

2018-10-27

Added the following content:

A note in Creating a Replication Pair

Modified the following content:

- Note descriptions in Performing a Planned Failover
- Note descriptions in Expanding Replication Pair Capacity

2018-10-23

Added the following content:

- A usage example in Application Scenarios
- A note in Step 2: Create a Protected Instance
- A note in Detaching a Replication Pair
- A note in Expanding Replication Pair Capacity

Modified the following content:

- A note in Performing a Planned Failover
- A note in Performing a Failover

2018-09-29 | Modified the following content: Prerequisites in Expanding Replication Pair Capacity

2018-09-25

Added the following content:

- A note in Configuration Process
- A prerequisite in Detaching a Replication Pair

2018-09-11

Added the following content:

- Figures in Performing a Planned Failover
- Screenshots in Step 1: Create a Protection Group, Step 2: Create a Protected Instance, Modifying Specifications of a Protected Instance, Deleting a Protected Instance, Attaching a Replication Pair, and Detaching a Replication Pair

- A note in Deleting a Replication Pair
- A note in Performing a Failover

2018-09-03

Added the following content:

- Application Scenarios
- A limitation in Step 2: Create a Protected Instance

Modified the following content:

- Service Overview

- Performing a Planned Failover
- Step 2: Create a Protected Instance

Deleted the following content:

- Section "Adding a NIC"
- Section "Deleting a NIC"

2018-08-08

Modified the following content:

- Constraints
- Step 2: Create a Protected Instance

2018-06-30 | This issue is the first official release.