Managing Virtual IP Pools via VAST Web UI
Creating Virtual IP Pools
From the left navigation menu, select Network Access and then Virtual IP Pools.
In the Virtual IP Pools page, click + Create Virtual IP Pool and complete the fields:
Field
Description
Tenant
Specifies which tenant the virtual IP pool should serve. A virtual IP pool can serve a specific tenant or all tenants.
Name
Enter a name for the virtual IP pool.
Gateway IPv4
Enter an IPv4 address for the gateway.
The gateway IPv4 address is required if your storage clients are on multiple IPv4 subnets and you are routing the client storage traffic through a local gateway.
Subnet CIDR IPv4
Specifies the subnet in Classless Inter-Domain Routing (CIDR) notation for IPv4.
In CIDR notation, the subnet is expressed as the number of bits of each IP address that represent the subnet address. For example, the subnet mask 255.255.255.0 is expressed as 24 in CIDR notation.
VLAN
If you want to tag the virtual IP pool with a specific VLAN on the data network, enter the VLAN number (0-4096). See also Tagging Virtual IP Pools with VLANs.
Role
Select a role for the virtual IP pool:
Protocols to enable network access to data stored on the VAST cluster.
Replication to create a virtual IP pool dedicated to VAST async replication.
VAST DB to create a virtual IP pool dedicated to VAST Catalog. If a vistual IP pool with this role exists, the virtual IPs in this pool are used for VAST Catalog queries run from the VAST Web UI. This pool is not required but creating a pool of this role can improve performance when running VAST Catalog queries.
VMS Preferred
Enable this setting if you would like the CNodes that asre assigned virtual IPs from this pool to belong to a preferred domain for VMS failover. For more details, see VMS Hosting Impact and Preferences.
Note
Enabling this setting may cause VMS to move to another CNode, which will cause VMS to be unreachable for up to 60 seconds.
All CNodes selected
This option lets you determine which CNodes serve the virtual IP pool.
If you want to dedicate a specific group of CNodes to the virtual IP pool, toggle this option off and in the pane that appears below it, select CNodes that you want to be included. The virtual IPs in this pool will only be distributed among the selected CNodes.
Otherwise, the pool will be distributed among all active CNodes.
If Port Membership for the virtual IP pool is set to RIGHT or LEFT, only right or left ports on the selected CNodes will be used for load balancing in this virtual IP pool.
Port Membership
Determines which port (right or left) in a group of CNodes is allocated to the virtual IP pool. For more information, see CNode Port Affinity. By default, all ports on the pool's CNodes are included in the virtual IP pool.
VIP Pool Domain name
If you are using the VAST Cluster DNS server, specify a domain name to associate with the virtual IP pool. The domain suffix is defined in the DNS server configuration, is appended to the virtual IP pool domain name to form a fully qualified domain name (FQDN). Requests for that FQDN will be allocated virtual IPs from this pool.
The FQDN formed from the current value entered into the field and the domain suffix is displayed below the field as the DNS Service FQDN.
IP Ranges List
A set of IP addresses that belong to the virtual IP pool, which can include multiple different contiguous ranges.
For each range, add the Start IP and End IP.
To add a range, click the Add IP Range button.
To remove a range, click the Remove button for that range.
Click Create.
The virtual IP pool is saved. IP addresses from the pool are assigned automatically to the CNodes. You can view the assigned virtual IPs per CNode in the Virtual IPs tab.
Modifying Virtual IP Pools
From the left navigation menu, select Network Access and then Virtual IP Pools.
In the Virtual IP Pools page, open the the Actions menu for the virtual IP pool you want to modify, and select Edit.
Make your changes and click Update.
Deleting Virtual IP Pools
Caution
Deleting all virtual IP pools will cause all cluster data to be inaccessible to clients.
From the left navigation menu, select Network Access and then Virtual IP Pools.
In the Virtual IP Pools page, open the Actions menu for the virtual IP pool you want to delete, and select Remove.
Click Yes to confirm the deletion.
Managing Virtual IP Pools via VAST CLI
To manage virtual IP pools via CLI, use the following commands.
Tip
For full CLI command syntax, including VAST arguments, enter the command at the CLI prompt in the <command> <subcommand> format provided in the table, followed by ?.
Task | Command |
|---|---|
View virtual IP pools | |
View details of specific virtual IP pool | |
View assigned virtual IPs | |
Create a virtual IP pool | |
Delete a virtual IP pool | |
Modify a virtual IP pool |