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  1. Home
  3. Veritas NetBackup™ Administrator's Guide, Volume I
  5. Section VII. Configuring replication
  7. About NetBackup replication
  9. About NetBackup Auto Image Replication
  11. Removing or replacing replication relationships in an Auto Image Replication configuration
  13. Replacing all replication relationships between a domain and a storage server
Veritas NetBackup™ Administrator's Guide, Volume I

Replacing all replication relationships between a domain and a storage server

Note:

If the storage server to be replaced is involved in a classic (non-targeted) Auto Image Replication configuration, the replacement storage server must not have any additional replication target relationships.

The procedure refers to two domains: D1 and D2. Auto Image Replication is configured to occur from storage servers in D1 to D2. Also, from D2 to D1.

A new storage server (S2) is added to D2 so that D2 now contains two storage servers (S1 and S2). Relationships to S1 must be replaced with relationships to S2.

Table: Example configuration before changes lists the configuration before the switch to D2. Table: Example configuration after changes lists the configuration after the changes have been made.

Table: Example configuration before changes

Domains

Storage servers

Storage lifecycle policies

D1

Contains several storage servers but they are not necessary in the example.

  • BACKUP_D1_REPLICATE_D2

    This SLP replicates to S1 in D2 using the target import SLP IMPORT_S1.

  • IMPORT_D1

    This SLP imports to a storage server in D1.

D2

S1 (To be deprecated)

S2 (New in D2)

  • BACKUP_D2_REPLICATE_D1

    This SLP replicates to D1 using the target import SLP IMPORT_D1.

  • IMPORT_S1

    This SLP imports to D2 and stores on S1.

Figure: Topology before changes

Topology before changes

Table: Example configuration after changes

Domains

Storage servers

Storage lifecycle policies

D1

Contains several storage servers but they are not necessary in the example.

  • BACKUP_D1_REPLICATE_D2

    This SLP replicates to S2 in D2 using the target import SLP IMPORT_S2

  • IMPORT_S1

    This SLP imports to a storage server in D1.

D2

S1 (To be deprecated)

S2 (New in D2)

  • BACKUP_D2_REPLICATE_D1

    This SLP replicates to D1 using the target import SLP IMPORT_D1.

  • IMPORT_S2

    This SLP imports to D2 and stores on S2.

Figure: Topology after changes

Topology after changes

In the following procedure, note that steps must be performed in specific domains.

Table: Replacing all replication relationships between a domain and a storage server

Domain

Step

Description

In domain D2:

1

Run the following command to determine the replication relationships of storage server S1:

bpstsinfo -lsuinfo -storage_server storage_server_name -stype storage_server_type

For example:

bpstsinfo -lsuinfo -storage_server S1 -stype replication_host

2

For each replication target relationship that is found in step 1, add a corresponding relationship between storage server S2 and the target in D1.

See Adding or removing a replication relationship between two storage servers.

3

Copy all import SLPs that import to storage server S1. Modify the new SLPs to import to storage server S2.

For example, copy IMPORT_S1. Modify the SLP to import to storage server S2. Change the SLP name to reflect that it will import to S2: IMPORT_S2.

Note:

Do not delete the existing import SLPs yet. All of the SLPs that are no longer performing any function can be deleted later in this procedure.

In domain D1:

4

Run the following command on the master server:

nbdecommission -list_ref -oldserver storage_server_name - machinetype replication_host

For example:

nbdecommission -list_ref -oldserver S1 - machinetype replication_host

The output lists:

  • All of the storage servers in the source domain (S1) that reference the deprecated storage server as a replication target or replication source.

  • All of the targeted A.I.R. replication SLPs that reference an SLP that imports to the deprecated storage server.

    Note:

    If an SLP has in-process images, either wait until those images are complete or cancel them before decommissioning the storage server. Note that this includes SLPs of all versions. Use the SLP utility command (nbstlutil) to cancel the processing of existing SLP-managed images.

    See Lifecycle operation administration using the nbstlutil command.

In domain D2:

Complete steps 5-6 only if step 4 listed any replication source relationships.

5

Modify replication SLPs that replicate from S1 to domain D1 to replicate from S2. This includes both non-targeted and targeted A.I.R. SLPs.

For example, change the Replication operation in BACKUP_D2_REPLICATE_D1. Change the backup storage destination from S1 to S2.

6

Remove the replication source relationships that were found in step 4.

See Adding or removing a replication relationship between two storage servers.

In domain D1:

Complete steps 7-10 only if step 4 listed any replication target relationships.

7

Add replication relationships from each storage server that was listed in step 2 that has a replication target relationship to storage server S2.

See Adding or removing a replication relationship between two storage servers.

8

Modify the replication operations that were found in step 4. Change the target import SLP to the corresponding import SLP created in step 3.

For example, change the Replication operation in BACKUP_D1_REPLICATE_D2. Change the Target import SLP setting from IMPORT_S1 to IMPORT_S2.

9

Remove the replication target relationships that were found in step 4.

See Adding or removing a replication relationship between two storage servers.

10

Run the following command to decommission the storage server:

nbdecommission -oldserver storage_server_name - machinetype replication_host

For example:

nbdecommission -oldserver D1 - machinetype replication_host

In domain D2:

11

Any import SLPs to S1 that are no longer necessary may now be deleted.

For example, IMPORT_S1 can be deleted now.

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