Dell PowerVault MD3200i Hardware Installation And Troubleshooting Manual page 44

Storage arrays with microsoft windows server failover clusters
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NOTE:
If you choose to configure mutual CHAP authentication, you must first
configure target CHAP.
Remember, in terms of iSCSI configuration, the term target always refers to
the storage array.
Configuring Target CHAP Authentication on the Storage Array
1 From MD Storage Manager, click the iSCSI tab and then Change Target
Authentication.
Make a selection based on the following:
Table 3-4. CHAP Settings
Selection
None
None and CHAP
CHAP
2 To configure a CHAP secret, select CHAP and select CHAP Secret.
3 Enter the Target CHAP secret (or Generate Random Secret), confirm it
in Confirm Target CHAP Secret, and click OK.
Although the storage array allows sizes from 12 to 57 characters, many
initiators only support CHAP secret sizes up to 16 characters (128-bit).
NOTE:
the secret in an accessible place. If Generate Random Secret is used, copy
and paste the secret into a text file for future reference since the same CHAP
secret is used to authenticate any new host servers you may add to the
storage array. If you forget this CHAP secret, you must disconnect all existing
hosts attached to the storage array and repeat the steps in this chapter to
add them.
4 Click OK.
44
Preparing Your Systems for Clustering
Description
This is the default selection. If None is the only selection, the
storage array allows an iSCSI initiator to log on without
supplying any type of CHAP authentication.
The storage array allows an iSCSI initiator to log on with or
without CHAP authentication.
If CHAP is selected and None is not selected, the storage array
requires CHAP authentication before allowing access.
Once entered, a CHAP secret is not retrievable. Ensure that you record

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