You can define credentials that are unique to each target device. This is useful when you want any specific MediaAgent initiator to use CHAP credentials that are tied to a specific VTL instance.
Configuring iSCSI Logins to Virtual Libraries
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From the navigation pane, click Virtual Libraries.
The Configured VTLs page appears.
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In the row for the library that you want to add access, click View.
The details for the virtual tape library is displayed.
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Under VTL Information, click View in the iSCSI row.
The iSCSI Configuration page is displayed.
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The IQN box displays the VTL Changer IQN. The IQN is auto-generated by the VTL host and can be left as is, or be modified.
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The Chap Configuration section displays the existing CHAP configuration rules.
If no CHAP configuration rules are listed here, the rules defined in Securing iSCSI Device Access is applied by default.
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Select Add Chap to create new/unique credentials, instead of the Default, and specify the following:
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From the Direction list, select Incoming to specify that the CHAP credentials are defined on the target (VTL host).
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From the Device list choose one of the following options:
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All to apply CHAP credentials to the medium changer and each drive.
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Changer to CHAP credentials to the medium changer only.
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Drive X to CHAP credentials to the specified drive.
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In the Initiator IQN box, perform one of the following
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Leave it blank to apply the rule to all MediaAgents (Initiator IQNs).
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Add the specific MediaAgent (Initiator IQN) to apply the rule to the specific MediaAgent.
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In the User and Password boxes, add the user credentials:
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User name should be greater then 8 characters and less than 256 characters and can include 0-9, a-z, A-Z, _ (underscore), and - (hyphen).
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Passwords should NOT include spaces, : (colon), = (equal sign), \ (backslash), ' (single quotation mark), and " (double quotation mark).
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If a special character is used, it should be enclosed within single quotation marks (' ').
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Click Add CHAP.