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Veritas Access Appliance Solutions Guide for NetBackup

Last Published: 2021-11-18

Product(s): Appliances (7.4.3)

Platform: Veritas 3340,Access Appliance OS

Access Appliance integration with NetBackup
System requirements
1. Supported configurations and versions for NetBackup with Veritas Data Deduplication
2. Supported configurations and versions for NetBackup with CloudCatalyst
Configuring Veritas Data Deduplication with Access Appliance
Migrating the NetBackup images from existing storage to Veritas Data Deduplication storage
1. Migrating NetBackup images from CloudCatalyst/S3 to Veritas Data Deduplication storage
Configuring Access Appliance as a cloud storage server with NetBackup CloudCatalyst
Configuring backup and restore using NetBackup policies
Configuring Access Appliance with the NetBackup client
Troubleshooting
1. Additional resources
2. Generating Access Appliance S3 server keys using the helper script
Index

Configuring Veritas Data Deduplication using the Access CLISH

This section describes how you can configure Veritas Data Deduplication 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 file system should be already created and the IP should be online before you start deduplication. The file system is used to store the deduplicated data and its metadata. The deduplication storage server uses the specified IP address to receive the backup data from NetBackup.
Modify the following tunables:
/sys/kernel/mm/transparent_hugepage/khugepaged/defrag is set to "0"
/sys/kernel/mm/transparent_hugepage/defrag is set to "always madvise [never]"

Set the following values in the /etc/sysctl.conf file:

kernel.numa_balancing = 0 
vm.overcommit_memory = 2 
vm.min_free_kbytes = 2097152 
vm.max_map_count = 262144
vm.overcommit_ratio = 90

To configure the deduplication storage server

To configure the deduplication storage server, enter the following:
```
dedupe> config filesystem1 [, filesystem2,...] IP	username 
catfs_name
```
Where:
filesystem1, filesystem2,...
Specifies the file system names.
IP
Specifies the interface IP.
username
Specifies the user name.
catfs_namee
Specifies the catalog file system of the 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:

If you want to configure deduplication with an IPv6 IP, you are required to have an FQDN entry which resolves to the specific IP. The FQDN should be resolvable on both Access Appliance and NetBackup. 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.

Note:

If you have to reconfigure deduplication, you are required to provide the first file system which has the dedupe directory inside the /vx/fsname/ directory using the same user name and password that you used when you initially configured deduplication.

To change the user password

You can change the password of the deduplication server user.
To change the password, enter the following:
```
dedupe> passwd user_name
```
You are prompted to enter your current password and the new password. After you confirm the new password, the password gets updated.

Note:

If the user is not present on NetBackup, you have to add the user on the NetBackup server.
```
# /usr/openv/pdde/pdcr/bin/spauser -a -u user_name
```
You also must update the password on NetBackup if you have updated the password for the Veritas Data Deduplication server from Access Appliance.
```
# /usr/openv/volmgr/bin/tpconfig -update -stype PureDisk 
-storage_server IP address -sts_user_id user_name
```

To start the deduplication storage server

The storage server is started on the node on which the virtual IP, which you specified in the dedupe> config command is online.
To start the deduplication storage server, enter the following:
```
dedupe> start
```
The deduplication storage server should be already configured before you start the deduplication storage server.

To display information the deduplication storage server

To display information about the deduplication storage server, enter the following:
```
dedupe> show
```
The information includes the file system(s) being used, the IP, and the cluster node on which the server is running.

To display the deduplication storage server statistics

To display the deduplication storage server statistics, enter the following:
```
dedupe> stats
```
The information includes details like total storage size, free storage, and deduplication ratio. The deduplication storage server should be online for this operation.

To show the status of the deduplication storage server

To show the status of the deduplication storage server, enter the following:
```
dedupe> status
```
The information includes whether the server is running and the cluster node on which the server is running.

To stop the deduplication storage server

To stop the deduplication storage server, enter the following:
```
dedupe> stop
```
The deduplication storage server must be configured and running. If any backup job is running when the server is stopped, the job aborts with an error.

To increase the storage capacity of the deduplication storage server

To increase the storage capacity of the deduplication storage server to the given size, enter the following:
```
dedupe> grow size
```
The deduplication storage server should be online for this operation.

Note:

The shrink operation is not supported. You cannot shrink the size of the deduplication storage server pool after configuration.

To grow the catalog storage of the deduplication storage server

To grow the catalog storage of the deduplication storage server to a given size, enter the following:
```
dedupe> growto size
```
The deduplication storage server should be online for this operation.

To add a new user to the deduplication storage server

To add a new user to the deduplication storage server, enter the following:
```
dedupe> adduser username
```
The user name that is mentioned here is the NetBackup media server user name which you use later to configure the storage server on the NetBackup server.

To show the list of users of the deduplication storage server

To show the list of users of the deduplication storage server, enter the following:
```
dedupe> listuser
```

To unconfigure the deduplication storage server

To unconfigure the deduplication storage server, enter the following:
```
dedupe> unconfig
```
The file system(s) and the deduplicated data stored on it are not destroyed.

To add an IP to the deduplication cluster

To add an IP to the deduplication cluster, enter the following:
```
dedupe> addip
```

To remove an IP from the deduplication cluster

To remove an IP from the deduplication cluster, enter the following:
```
dedupe> removeip
```

To set the maximum cache size for the deduplication cluster

To set the maximum cache size for the deduplication cluster, enter the following:
```
dedupe> setmaxcachesize
```

See the dedupe man page for more information.