Redundancy options for the Virtual I/O Server include
multi-pathing, Redundant Array of Independent Disks (RAID) configurations,
and Link Aggregation (or
EtherChannel).
Multipathing
Multipathing for the physical storage within the Virtual
I/O Server provides failover physical path redundancy and load-balancing.
The multipathing solutions available in the Virtual I/O Server include
MPIO as well as solutions provided by the storage vendors.
RAID
Redundant Array of Independent Disks (RAID) solutions provide
for device level redundancy within the Virtual I/O Server. Some RAID
options, such as LVM mirroring and striping, are provided by the Virtual I/O Server software, while
other RAID options are made available by the physical storage subsystem.
Link Aggregation or EtherChannel devices
A Link Aggregation, or EtherChannel, device is a network port-aggregation
technology that allows several Ethernet adapters to be aggregated. The
adapters can then act as a single Ethernet device. Link Aggregation helps
provide more throughput over a single IP address than would be possible with
a single Ethernet adapter.
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