Huawei OceanStor 2000 V3 Series Features Manual page 102

OceanStor V3 Series
HyperMetro Feature Guide for Block
l
Issue 05 (2018-01-30)
The HyperMetro working mode of a virtual LUN has a higher priority than that set
for all storage systems. To obtain better performance, you are advised to set the
HyperMetro working mode for arrays only.
For vSphere OSs,
a. Log in to the application server.
b. Run esxcli upadm to log in to the CLI of OceanStor UltraPath.
c. Run set hypermetro workingmode -m mode -p primary_array_id [-l vlun_id].
Table 4-17 describes the key parameters in the command.
Table 4-17 Parameter description
Keyword and
Parameter
-m mode
-p primary_array_id
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description
Used to specify the
HyperMetro working
mode.
priority: preferred
n
storage array mode
balance: load
n
balancing mode
ID of the preferred
storage array. The ID is
allocated by UltraPath.
The storage array in the
data center in which the
application hosts reside
is selected.
Run esxcli upadm show
diskarray to obtain the
ID of the storage array.
NOTE
When -m is set to
n
priority, the value of
the parameter
indicates the storage
array to which I/Os are
preferentially
delivered.
When -m is set to
n
balance, the value of
the parameter
indicates the storage
array where the first
slice section resides.
4 Configuration
Default Value
priority
priority is
recommended. balance
is applicable to scenarios
where the two active-
active data centers are in
the same building.
None
NOTE
Mapping relationship
between application hosts
and storage arrays:
If the preferred storage
n
array is configured for
all application hosts in
data center A, select
storage array A.
If the preferred storage
n
array is configured for
all application hosts in
data center B, select
storage array B.
94