Configuring Veritas Data Deduplication with WORM using the Access CLISH
This section describes how you can configure Veritas Data Deduplication with WORM using the Access Appliance command-line interface.
You can use the dedupe> config command to configure the deduplication storage server using the given set of file systems and IP address.
Prerequisites:
The filesystem should be striped and should be already created with size not exceeding 100 TiB and the IP should be online before you start configuring Veritas Data Deduplication.
If the total deduplication pool size required is larger than 100 TiB, then create multiple data filesystems.
If the Veritas Data Deduplication version is 19.0.1, the total data filesystem size should not exceed 1.236 PiB (approximately). If the Veritas Data Deduplication version is 20.4.0.1 or later, the total data filesystem size should not exceed 2.478 PiB (approximately).
The data filesystems are used to store the deduplicated data and its metadata.
You are required to create a separate catalog file system to store the Veritas Data Deduplication catalog. The minimum size of the catalog file system should be 5 TiB.
The deduplication storage server uses the specified IP address to receive the backup data from NetBackup.
The lockdown mode should be enterprise or compliance.
To configure the deduplication storage server with WORM
- To configure the deduplication storage server, enter the following:
dedupe> config filesystem1[,filesystem2,...] IP username [catfs_name] vdd_version [encryption] [worm=yes] [minret] [maxret] [node_name] [config_name]
Where:
filesystem1, filesystem2,...
Specifies the data filesystem names.
IP
Specifies the interface IP.
username
Specifies the user name.
catfs_name
Specifies the catalog file system of the deduplication server.
vdd_version
Specifies the version of Veritas Data Deduplication sever. This is a mandatory parameter.
For supported version, See Supported configurations and versions for NetBackup with Veritas Data Deduplication.
encryption
Enables encryption. The possible values are enable_encryption=yes/enable_encryption=no. If enabled, all data sent to the deduplication server is encrypted but without KMS.
worm
Enables WORM. The possible values are enable_worm=yes/enable_worm=no.
minret
Specifies the minimum image retention period in seconds. It can contain: [1-9](s|S). The minimum value is 3600s.
maxret
Specifies the maximum image retention period in seconds. It can contain: [1-9](s|S). The maximum value is 1892160000s.
node_name
Name of the node on which deduplication service is to be configured.
If node_name is provided, the affinity of the server is set to that node.
If node_name is not provided, and if there is only one container in the cluster, the affinity is not set to any node. After the second container comes into existence, irrespective of whether affinity (node_name) is provided or not, the affinity is set to the node other than the node where the first container is running, as it does not has any running container with storage consumed.
config_name
Name for the deduplication service. Default value is msdp-engine.
Note:
This is an optional parameter when the first deduplication server is configured. It is mandatory when you configure the second deduplication server.
You are prompted to enter your password. After you specify your password, Veritas Data Deduplication is configured.
Note:
You have to use the same password when you configure the storage server on NetBackup.
Note:
Configuring Veritas Data Deduplication requires a FQDN entry which resolves to a specific IP. You can either have a DNS entry or you can add an entry in the /etc/hosts file on all the nodes to resolve the FQDN to a specific IP.
If the FQDN entry is not found, <catfs>.vdd.com is used as the FQDN entry during configuration.
Note:
If you have to reconfigure deduplication, you have to pass all the file systems in the same order that is displayed in the output of the dedupe show command.
If a new IP is used for the deduplication server during reconfiguration, the new IP should map to the old FQDN. You can either have a DNS entry or add an entry in the /etc/hosts file on all the nodes to resolve the FQDN to a specific IP.
The default size of the stripe unit of the deduplication file system created is 64K. As a result of the creation of catalog file system and VxFS and VDD optimizations, performance improvements can be seen in optimized duplication and restore.