vSphere Storage - ESXi 5.1 - Documentation - VMware

2 Under Adapter Details, click the Properties tab and click Edit in the Authentication panel.
3 Specify authentication method.
n None
n Use unidirectional CHAP if required by target
n Use unidirectional CHAP unless prohibited by target
n Use unidirectional CHAP
n Use bidirectional CHAP. To configure bidirectional CHAP, you must select this option.
4 Specify the outgoing CHAP name.
Make sure that the name you specify matches the name configured on the storage side.
n To set the CHAP name to the iSCSI adapter name, select Use initiator name.
n To set the CHAP name to anything other than the iSCSI initiator name, deselect Use initiator name
and type a name in the Name text box.
5 Enter an outgoing CHAP secret to be used as part of authentication. Use the same secret that you enter
on the storage side.
6 If configuring bidirectional CHAP, specify incoming CHAP credentials.
Make sure to use different secrets for the outgoing and incoming CHAP.
7 Click OK.
8 Rescan the iSCSI adapter.
If you change the CHAP parameters, they are used for new iSCSI sessions. For existing sessions, new settings
are not used until you log out and log in again.
Set Up CHAP for Target in the vSphere Client
For software and dependent hardware iSCSI adapters, you can configure different CHAP credentials for each
discovery address or static target.
When configuring CHAP parameters, make sure that they match the parameters on the storage side. The CHAP
name should not exceed 511 and the CHAP secret 255 alphanumeric characters.
Required privilege: Host.Configuration.Storage Partition Configuration
Prerequisites
Before setting up CHAP parameters for software and dependent hardware iSCSI, determine whether to
configure one-way or mutual CHAP.
n In one-way CHAP, the target authenticates the initiator.
n In mutual CHAP, both the target and initiator authenticate each other. Make sure to use different secrets
for CHAP and mutual CHAP.
Procedure
1 Access the iSCSI Initiator Properties dialog box.
2 Select either Dynamic Discovery tab or Static Discovery tab.
Chapter 11 Configuring iSCSI Adapters and Storage
3 From the list of available targets, select a target you want to configure and click Settings > CHAP.
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