Network Bonding Modes - HP StoreOnce 3100 System Installation And Configuration Manual

and Replication between StoreOnce Systems. This is where the IP protocol and IP address
details are defined for the subnet and the VLAN tag, if appropriate.
◦
If the Port Set is not VLAN enabled, it may be configured with one Data Subnet that
uses the IPv4 protocol and one Data Subnet that uses the IPv6 protocol. (This
configuration is sometimes referred to as a dual stack configuration.)
◦
VLAN tagging enables more subnets to be accessed without extra NIC host bus adapters.
If the Port Set is VLAN enabled, multiple virtual subnets (IPv4 and IPv6), up to a
maximum of 128 for the whole system, may be attached to a single Port Set. If VLAN
is enabled, a Port Set cannot use bonding mode 6.
◦
Data in flight encryption is available and is applied at Subnet level. It is intended to be
used to secure links between data centers for StoreOnce VTL or NAS Replication or
Low Bandwidth Catalyst Copy operations.
IMPORTANT:
StoreOnce appliance over a local network is not supported due to the performance
impact of the encryption. IPSEC is not supported for use on IPv6 subnets.

Network bonding modes

Each set of network ports on the appliance can be configured either on separate Subnets or in
a bond with each other (1 GbE and 10 GbE ports cannot be bonded together).
Three bonding modes are supported:
Mode 1 (Active/Backup)
This is the most simple bonding mode; it allows network traffic via one active port only and
requires no specific extra switch configuration. It is recommended for simple network
connections, if the active network link fails then traffic moves to the backup port.
Mode 4 (IEEE 802.3ad Dynamic Link Aggregation)
This bonding mode is also known as LACP and requires a special external switch
configuration. It provides a link aggregation solution, increasing the bond physical bandwidth,
but only works if all the ports in the bond are connected to one switch or switches joined by
an interswitch link. It is recommended when:
◦
The customer wants to increase throughput to the StoreOnce appliance.
◦
Trunks between switches on the customer network already use LACP mode.
The LACP protocol only works when it is configured on both the network switch and
StoreOnce end of the connection. Please refer to your switch documentation for information
on LACP configuration.
Mode 6 (Active Load Balancing)
This mode provides a load balance solution. It does not require specific external switch
configuration but does require the switch to allow ARP negotiation. It can be used in a
2–switch configuration.
This configuration is generally recommended for backup data performance and also for
resiliency of both data and management network connectivity. However, in some
environments ARP packet negotiation may be disabled within the network infrastructure, so
this mode may not be appropriate.
NOTE: When using bonded ports the full performance of bonded links are only realized if
multiple host servers are providing data, otherwise data will still use only one network path from
the single server.
Using Data In Flight Encryption for direct backup operations to the
Network bonding modes 65