Huawei OceanStor 2000 V3 Series Features Manual page 15

OceanStor V3 Series
HyperMetro Feature Guide for Block
Network
HyperMetro replication
network
This is the heartbeat
network between the
storage systems in the
two data centers. It
enables the storage
systems to provide
services for hosts
concurrently and
ensures data
synchronization
between them.
NOTE
Same-city network
between data centers
The storage systems in
data centers A and B
provide the same
services for hosts. There
is a mutual backup
relationship between the
two storage systems. If
the storage system in
one data center
malfunctions, the
storage system in the
other data center
automatically takes over
services without data
Issue 05 (2018-01-30)
The storage system sets
link priorities for different
types of information for
transferring data. The link
priority of heartbeat
information is higher than
that of data
synchronization
information.
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Description
Network l Supports 10GE, 8 Gbit/s Fibre Channel, and
type 16 Gbit/s Fibre Channel networks.
NOTE
When using the 10GE network, you are advised
to use the L2 network.
l Network quality and bandwidth
requirements for deploying the network:
– Bandwidth: ≥ peak service bandwidth
(total bandwidth of the two ends)
– Latency: The maximum supported RTT
is 10 ms (distance < 300 km)
NOTE
– No jitter and packet loss
– BER: ≤ 10
l The HyperMetro replication network,
storage-to-host network, and quorum
network need to be physically isolated and
common ports are not recommended.
Networking Each controller on every storage array in both
mode data centers has at least two redundant links. It
is recommended that you use four redundant
links.
Network The network uses bare fibers.
type
1 Feature Description
In practice, the latency is determined by the
requirements of the application layer. The
active/active solution must meet the
minimum latency requirement. The round-trip
time (RTT) of the Oracle RAC, SQL Server,
and DB2 applications is less than 1 ms (with
a distance of less than 100 km). The RTT of
the VMware vSphere applications is less than
10 ms (with a distance of less than 300 km).
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