HP StoreOnce 4430 HP StoreOnce Backup System Concepts and Configuration Guidel - Page 36

Network configuration in multi-node StoreOnce Backup systems, What is currently supported

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5 Network configuration in multi-node StoreOnce Backup systems The multi-node StoreOnce B6200 Backup system has specific networking considerations to ensure support for autonomic failover. Installation and configuration of these systems is normally carried out by HP service specialists. Before installation the customer is asked to read the HP StoreOnce B6000 Series Backup system Installation Planning and Preparation Guide and complete the checklist that specifies the information that the engineer needs to configure the system. Each couplet is a paired combination of two nodes that are directly connected in failover pairs. If one node fails, the system is designed to failover to the other node without any external interaction from the customer. The B6200 Series Backup system uses a concept called a Virtual Network Interface (VIF) to make this possible. In very simple terms: • The physical IP addresses relate to the physical ports that are used to connect the HP B6200 Backup system to the customer's network • The Virtual Network Interface (VIF) addresses are the IP addresses that the customer uses to connect to the B6200 Management Console (GUI and CLI) and to target backup and replication jobs. Because these are never directly linked to a physical port they continue to function correctly in the event of node failure. For a more detailed discussion of how VIFs and IP addresses are used see the HP StoreOnce Backup system installation preparation and planning guide. What is currently supported • IPv4 is supported. • DNS is supported. • A maximum of two sub-nets is supported, which can be used as follows: one sub-net for data (NAS shares, Catalyst stores and replication) and one sub-net for management. • For software revision 3.3.0 and greater up to two gateways are supported. If you wish to configure two sub-nets with only one external gateway, make sure that the gateway is on the same sub-net as the network that requires access to remote sites. • Three network bonding modes are supported, as described in Network bonding modes. • NAS shares, Catalyst stores and replication data use the same Ethernet channel. • If you wish to use your Ethernet channel for replication only, the only supported backup option is to create VTL libraries on Fibre Channel. • The network configuration applies to all nodes in the cluster. For example, you cannot have separate network configurations for each rack in a two-rack system. What is not currently supported • IPv6 is not supported. • DHCP is not supported. • There is no VTL support on Ethernet using the iSCSI protocol. Supported network configurations (templates) Network ports are bonded to ensure high availability. (But there is no network bonding between 1Gb and 10Gb ports.) 36 Network configuration in multi-node StoreOnce Backup systems

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5 Network configuration in multi-node StoreOnce Backup
systems
The multi-node StoreOnce B6200 Backup system has specific networking considerations to ensure
support for autonomic failover. Installation and configuration of these systems is normally carried
out by HP service specialists. Before installation the customer is asked to read the
HP StoreOnce
B6000 Series Backup system Installation Planning and Preparation Guide
and complete the checklist
that specifies the information that the engineer needs to configure the system.
Each couplet is a paired combination of two nodes that are directly connected in failover pairs. If
one node fails, the system is designed to failover to the other node without any external interaction
from the customer. The B6200 Series Backup system uses a concept called a Virtual Network
Interface (VIF) to make this possible.
In very simple terms:
•
The physical IP addresses relate to the physical ports that are used to connect the HP B6200
Backup system to the customer's network
•
The Virtual Network Interface (VIF) addresses are the IP addresses that the customer uses to
connect to the B6200 Management Console (GUI and CLI) and to target backup and replication
jobs. Because these are never directly linked to a physical port they continue to function
correctly in the event of node failure.
For a more detailed discussion of how VIFs and IP addresses are used see the
HP StoreOnce
Backup system installation preparation and planning guide
.
What is currently supported
•
IPv4 is supported.
•
DNS is supported.
•
A maximum of two sub-nets is supported, which can be used as follows: one sub-net for data
(NAS shares, Catalyst stores and replication) and one sub-net for management.
•
For software revision 3.3.0 and greater up to two gateways are supported. If you wish to
configure two sub-nets with only one external gateway, make sure that the gateway is on the
same sub-net as the network that requires access to remote sites.
•
Three network bonding modes are supported, as described in
Network bonding modes
.
•
NAS shares, Catalyst stores and replication data use the same Ethernet channel.
•
If you wish to use your Ethernet channel for replication only, the only supported backup option
is to create VTL libraries on Fibre Channel.
•
The network configuration applies to all nodes in the cluster. For example, you cannot have
separate network configurations for each rack in a two-rack system.
What is not currently supported
•
IPv6 is not supported.
•
DHCP is not supported.
•
There is no VTL support on Ethernet using the iSCSI protocol.
Supported network configurations (templates)
Network ports are bonded to ensure high availability. (But there is no network bonding between
1Gb and 10Gb ports.)
36
Network configuration in multi-node StoreOnce Backup systems