Huawei OceanStor 2000 V3 Series Features Manual page 34

OceanStor V3 Series
HyperMetro Feature Guide for File
the dual-write and DCL technologies while services are running, ensuring data consistency
between the storage arrays in two data centers.
mechanism.
Figure 1-2 Data HyperMetro mechanism
l
l
l
l
l
Issue 05 (2018-01-30)
√
Logical port
Tenant 1
...
FS1 FS2
FSn
HyperMetro pair n
HyperMetro pair 2
HyperMetro pair 1
Local storage array
Create tenants on two storage arrays to enable multiple tenants to share the same storage
hardware resources. Data security and privacy of the tenants are not adversely affected.
The operations such as creating file systems in tenants, sharing resources among tenants,
and rectifying faults act on all file systems of the tenants to achieve a flexible, easy-to-
manage, and cost-effective storage resource sharing mechanism.
Create a HyperMetro tenant pair to establish a HyperMetro relationship between tenants
of the local and remote storage array. The HyperMetro arbitration is implemented in the
unit of a HyperMetro tenant pair. If a fault occurs in a HyperMetro tenant pair, ensure the
arbitration results of all file systems in the tenants of the HyperMetro tenant pair are the
same and the environments in which the file systems are running are consistent between
the tenants.
Create a NAS HyperMetro pair to establish a HyperMetro relationship between the local
and remote file systems. After creating a NAS HyperMetro pair, you can perform data
synchronization, dual-write, and suspension in the pair in real time.
After logical ports are created for tenants, the logical ports of the local storage array are
activated but the logical ports of the remote storage array are not activated. The local
storage array provides services for hosts. If the local storage array malfunctions, the
logical ports of the remote storage array are activated and those of the local storage array
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Figure 1-2
Host
√ Not activated
Activated
FS1
HyperMetro
tenant pair
Remote storage array
1 Feature Description
shows the data HyperMetro
Logical port
Tenant 1'
...
FS2
FSn
Local file system
Remote file system
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