Administrator Guide

Configure CHAP for Servers in an iSCSI Fault Domain
When Challenge Handshake Authentication Protocol (CHAP) authentication is enabled, the Storage Center challenges each iSCSI
initiator for a shared secret (password). Servers must provide the correct shared secret to access
Storage Center volumes.
1. Expand the Dell Storage Manager menu, and then click Storage.
2. In the SC Series tab, select a Storage Center to open the Storage Center view.
3. Click the Storage tab, and then click the Fault Domains subtab.
4. Select the iSCSI fault domain.
5. Click More Actions → Configure CHAP. The Configure CHAP dialog box opens.
6. Select the CHAP Enabled check box.
7. 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.
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 to close the Add Remote CHAP Initiator dialog box.
8. Click OK to close the Configure CHAP dialog box.
9. 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.
1. Expand the Dell Storage Manager menu, and then click Storage.
2. In the SC Series tab, select a Storage Center to open the Storage Center view.
3. Click the Storage tab, and then click the Fault Domains subtab.
4. Select the iSCSI fault domain.
5. Click More Actions → 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 appears.
7. Modify the options as needed, then click OK. The Edit Remote CHAP Initiator dialog box closes.
8. Click OK to close the Configure CHAP dialog box.
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.
1. Expand the Dell Storage Manager menu, and then click Storage.
2. In the SC Series tab, select a Storage Center to open the Storage Center view.
3. Click the Storage tab, and then click the Fault Domains subtab.
4. Select the iSCSI fault domain.
5. Click More Actions → Configure CHAP. The Configure CHAP dialog box opens.
6. In the Remote CHAP Configuration table, select a CHAP configuration, then click Remove. The CHAP configuration is
removed from the table.
7. Click OK to close the Configure CHAP dialog box.
Storage Center Maintenance
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