Huawei OceanStor 2000 V3 Series Features Manual page 17

OceanStor V3 Series
HyperMetro Feature Guide for File
Network
Quorum network
If communication
between the storage
systems in data centers
A and B is interrupted
or a storage system
malfunctions, the
quorum server
determines which
storage system is
accessible.
NOTE
Issue 05 (2018-01-30)
A quorum server is
deployed on the quorum
network. If storage arrays
in the two data centers
encounter a device fault
or a link between the
storage arrays is down,
the quorum server
determines the access
status of data center A
and data center B
according to the
arbitration result.
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Description
Network l Quorum links support GE and 10GE
type networks as long as routes are reachable.
The Fibre Channel network is not supported.
l Quorum links support IPv4 and IPv6
addresses.
l For versions earlier than V300R006C10, the
arbitration link port cannot use a storage
device's management or maintenance
network port. For V300R006C10 and later
versions, the arbitration link port can use a
storage device's management network port,
but cannot use its maintenance network port.
l Network quality and bandwidth
requirements for deploying the network:
– Latency: RTT ≤ 50 ms
– Bandwidth: ≥ 10 Mbit/s
l The HyperMetro replication network,
storage-to-host network, and quorum
network need to be physically isolated and
common ports are not recommended on
storage devices.
1 Feature Description
9