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What is the difference between Local and Express record management? ​

Short answer

The record management method determines where the addresses in a data center group of a domain come from and is selected per group in the domain form; in the same domain, some groups can be Local and others Express. In Local (the default), the addresses are added, edited and deleted manually on TR7 from the Records tab. In Express, the addresses are pulled from an existing DNS server (master) by zone transfer with an Express profile; the management of the records stays on the master server, and the address rows on TR7 are read-only. A group becomes Express when the EXPRESS box is marked and a profile is selected; if no profile is selected, it remains Local.

How Does It Work? ​

With both methods, the domain's mode, Balance Algorithm and Fail-Safe Records are applied in the same way. The difference is at the address level: the addresses of an Express group arrive with the Static HC condition at every transfer, and a health scenario or topology rule cannot be selected per address; in these groups, health-based switchover is done with record-level conditions (e.g. Disaster Recovery Condition).

Comparison ​

LocalExpress
Source of the addressesEntered manually on TR7Zone transfer from the master DNS server
Where the record is managedTR7The master server
Buttons on the record tabAdd, Delete, Zone TransferSync via Express, Express Logs
Address rows in the record formEditable (address, HC condition, topology rule)Read-only; the HC condition is Static
UpdatingManualWhen a NOTIFY comes from the master, or with Sync via Express
Required definitionNoneAn Express Profiles (DNS Integration) profile

If the domain has both a Local and an Express group, the two sets of buttons appear together.

In TR7 ​

  • The selection is made in each data center group under the Default Mode field; a new Express profile can be added with the + icon next to the profile selector.
  • The Record Management column in the domain list shows the method of the groups in the form local: 1, express: 2, and the domain preview shows it for each group as Local Management or EXPRESS.

Common Misconceptions ​

  • "Marking the EXPRESS box is enough." If the box is marked and no profile is selected, the group is saved as Local.
  • "Express records can be corrected on TR7." The address rows are read-only; the change is made on the master server and comes to TR7 at the next transfer.
  • "Express is TR7 distributing its records to other servers." Express pulls the records from outside; to transfer the domain on TR7 to secondary servers, Slave Server IPs is used.

How it is done in the documentation

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