Dell PowerVault ME4 Series Storage System Administrator’s Guide

Add or modify a CHAP record

1. If you intend to use mutual CHAP and need to determine the IQN of a controller iSCSI port, perform the following:
   • Select the System topic.
   • Select the Rear view.
   • Hover the cursor over the iSCSI host port that you intend to use. In the Port Information panel that appears, note the IQN in the ID field value.
2. In the Hosts topic, select Action > Configure CHAP. The Configure CHAP panel opens with existing CHAP records listed.
3. Select the Enable Authentication (CHAP) checkbox to enable use of CHAP for all iSCSI nodes, then confirm the operation.
   NOTE:Enabling or disabling CHAP here will update its setting in the Advanced Settings tab in the Host Ports Settings panel.
4. Perform one of the following:
   • To modify an existing record, select it. The record values appear in the fields below the CHAP records list for editing. You cannot edit the IQN.
   • To add a new record, click New.
5. For a new record, in the Node Name (IQN) field, enter the IQN of the initiator. The value is case sensitive and can include a maximum of 223 bytes, including 0–9, lowercase a–z, hyphen, colon, and period.
6. In the Secret field, enter a secret for the target to use to authenticate the initiator. The secret is case sensitive and can include 12–16 bytes. The value can include spaces and printable UTF-8 characters except for the following: " <
7. To use mutual CHAP:
   • Select the Mutual CHAP check box.
   • In the Mutual CHAP Name field, enter the IQN obtained in step 1. The value is case sensitive and can include a maximum of 223 bytes and the following: 0–9, lowercase a–z, hyphen, colon, and period.
   • In the Mutual CHAP Secret field, enter a secret for the initiator to use to authenticate the target. The secret is case sensitive, can include 12–16 bytes, and must differ from the initiator secret. The value can include spaces and printable UTF-8 characters except for the following: " <
   A storage system secret is shared by both controllers.
8. Click Apply or OK. The CHAP records table is updated.