It is best to enable LUN security on each port when configuring your storage system. Although you can enable LUN security on a port when host I/O is in progress, I/O is rejected with a security guard after enabling.Editing port settings
Before you begin
The Storage Administrator (System Resource Management and Provisioning) role is required to perform this task.
The Security Administrator (View and Modify) role is required to perform this task.
It is best to enable LUN security on each port when configuring your storage system. Although you can enable LUN security on a port when host I/O is in progress, I/O is rejected with a security guard after enabling.
Procedure
Open the Port/Host Groups/iSCSI Targets window.
In Command Suite:
On the Resources tab, click Storage Systems, and then expand All Storage Systems and the target storage system.
Expand the target host group and click Ports/Host Groups/iSCSI Targets.
In Device Manager - Storage Navigator:
Click Storage Systems, and then expand the Storage Systems tree.
Click Ports/Host Groups/iSCSI Targets.
Select the Ports tab.
Select the desired port.
Display the Edit Ports window by performing one of the following:
Click Edit Ports.
From the Actions menu, select Ports/Host Groups/iSCSI Targets, then Edit Ports.
Select the check box to change the option and specify values. Items that can be changed are as follows:
IPv4 Settings: Specifies IP Address, Subnet Mask, or Default Gateway.
IPv6 Mode: Specifies enable or disable of this mode.
IPv6 Settings: Specifies Link Local Address, Global Address, Global Address 2, or Default Gateway if IPv6 Mode is selected to Enable.
Port Security: Specifies enable or disable.
Port Speed: Specifies the data transfer speed.
TCP Port Number: Specifies the TCP port number.
Selective ACK: Specifies enable or disable.
Delayed ACK: Specifies enable or disable.
Maximum Window Size: Specifies the size of the maximum window.
Ethernet MTU Size: Specifies the MTU size.
Keep Alive Timer: Specifies the keep alive timer.
VLAN Tagging Mode: Specifies enable or disable.
iSNS Server: Specifies enable or disable. If this option is selected to Enable, specify IP Address or TCP Port Number.
CHAP User Name: Specifies the CHAP user name.
Secret and Re-enter Secret: Specifies the secret which is used for host authentication.
Click Finish. A message appears, confirming whether to switch the LUN security. Clicking OK opens the Confirm window.
In the Confirm window, confirm the settings, in Task Name type a unique name for this task or accept the default, then click Apply. If Go to tasks window for status is checked, the Tasks window opens.