How to configure a switch after the iSCSI host ports on a storage array are bound?

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Storage arrays support only the 802.3ad binding mode.
The 802.3ad mode is also known as the dynamic link aggregation policy. Under this policy, multiple ports on a network adapter work in the same activated aggregation group and share the same rate and duplex mode.
After the iSCSI host ports on a storage array are bound, dynamic link aggregation needs to be configured for the ports on the switch connecting to the storage array. For example, on a switch, ports 19 and 20 are connected to a storage array, and then the method for configuring link aggregation of the dynamic LACP mode is as follows:
system-view
System View: return to User View with Ctrl+Z.
[S-Switch]interface GigabitEthernet 1/0/19
[S-Switch-GigabitEthernet1/0/19]lacp enable
LACP is already enabled on the port!
[S-Switch-GigabitEthernet1/0/19]quit
[S-Switch]interface GigabitEthernet 1/0/20
[S-Switch-GigabitEthernet1/0/20]lacp enable
LACP is already enabled on the port!
[S-Switch-GigabitEthernet1/0/20]quit
NOTE:
After the dynamic link aggregation is enabled for some ports on a switch, the switch automatically adds the ports to an aggregation group.

Other related questions:
Why does an iSCSI initiator keep trying to establish a connection to a storage array although the related iSCSI host port can be pinged through?
The cause of this situation is that the 3620 port is suppressed, resulting in that the iSCSI initiator cannot be connected to the storage system. For security reasons, the hardware firewalls on networks, software firewalls on hosts, or other security software suppress certain ports. To rectify the fault, you simply need to remove the suppression on port 3620.

Method used to bond ports on OceanStor V3 unified storage systems
On OceanStor V300R001 storage systems, you can bond multiple iSCSI host ports. In doing so, the data transmission rate of these iSCSI host ports can be improved significantly (assuming other components do not reach their performance bottlenecks). For details, see Bonding Ethernet Ports .

Bonding of host ports on a storage device
1. Storage arrays support the 802.3ad bonding mode only. 2. If the ports on a storage device are bonded, the ports on the switch connected with the storage device must be aggregated and the ports on the server connected with the switch must be bonded. 3. Only the ports on the same controller can be bonded.

Method used to bond ports on OceanStor T Series unified storage systems
On OceanStor T Series V100R005 storage systems, you can bond multiple iSCSI host ports in 802.3ad mode. In doing so, the data transmission rate of these iSCSI host ports can be improved significantly (assuming other components do not reach their performance bottlenecks). For details about this mode, see Tips for Bonding Storage Ports.

Function of the MTU of an iSCSI host port and method used to change the MTU value
Function of the MTU of an iSCSI host port and method used to change the MTU value: FAQ-What is the function of the MTU of an iSCSI host port? How can I change the MTU value

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