Administrator Guide

6. Select the CHAP Enabled checkbox.
7. (Bidirectional CHAP only) In the Bidirectional CHAP Secret field, type the shared secret that the Storage Center (target) must
provide when challenged by the remote initiator. If this field is empty, bidirectional CHAP authentication is not enabled.
8. Define the CHAP configuration for each server in the fault domain that initiates iSCSI connections to the Storage Center.
a) Click Add.
The Add Remote CHAP Initiator dialog box opens.
b) In the iSCSI Name field, type the iSCSI name of the remote initiator.
c) In the Remote CHAP Name field, type the CHAP name of the remote initiator.
d) (Bidirectional CHAP only) In the Local CHAP Secret field, type the shared secret that the Storage Center (target) must provide
when challenged by the remote initiator. This secret is required if bidirectional CHAP is enabled on the remote iSCSI initiator. This is
the same shared secret that is typed into the
Bidirectional CHAP Secret field for Local CHAP Configuration on the
Configure CHAP dialog box.
e) In the Remote CHAP Secret field, type the shared secret that the remote initiator must provide when challenged by the Storage
Center (target).
f) Click OK.
The Add Remote CHAP Initiator dialog box closes.
9. Click OK.
The Configure CHAP dialog box closes.
10. Configure each remote iSCSI initiator to use the shared secrets that you defined.
Modify CHAP Settings for a Server in an iSCSI Fault Domain
Modify CHAP settings for a server to change one or more shared secrets for the server.
About this task
NOTE:
Changing CHAP settings will cause existing iSCSI connections between SAN systems using the selected fault
domain to be lost. You will need to use the Configure iSCSI Connection wizard to reestablish the lost connections after
changing CHAP settings.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of Unisphere
Central.
2. From the SYSTEM menu, click Ports.
The Ports view is displayed.
3. Click the Front End Ports tab.
4. Expand iSCSI and click the fault domain link.
The Fault Domain view is displayed.
5. On the Summary tab, click (More Actions) and select Configure CHAP.
The Configure CHAP dialog box opens.
6. In the Remote CHAP Configuration table, select a CHAP configuration, then click Edit.
The Edit Remote CHAP Initiator dialog box opens.
7. Modify the options as needed, then click OK.
The Edit Remote CHAP Initiator dialog box closes.
8. Click OK.
Remove CHAP Settings for a Server in an iSCSI Fault Domain
Remove CHAP settings for a server to prevent it from targeting the Storage Center while CHAP is enabled for the fault domain.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of Unisphere
Central.
2. From the SYSTEM menu, click Ports.
The Ports view is displayed.
3. Click the Front End Ports tab.
4. Expand iSCSI and click the fault domain link.
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Storage Center Maintenance