PowerFlex provides robust user management capabilities by integrating with external directory services. It supports authentication and authorization using the Lightweight Directory Access Protocol (LDAP). This allows administrators to manage user accounts and roles centrally through services like Microsoft Active Directory (AD), which is a common implementation of LDAP. This integration simplifies user administration by leveraging existing corporate directory infrastructure for authentication and role-based access control within the PowerFlex environment.

B. TACACS+: This protocol is primarily used for network device administration (authentication, authorization, and accounting) and is not a supported method for managing user accounts within the PowerFlex system itself.

C. SAML: Security Assertion Markup Language (SAML) is an open standard for single sign-on (SSO) and is not listed in the official documentation as a supported authentication protocol for PowerFlex user management.

D. RADIUS: Remote Authentication Dial-In User Service (RADIUS) is typically used for authenticating users for network access and is not a supported protocol for PowerFlex user account management.

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1. Dell PowerFlex 4.0 Security Configuration Guide. (April 2023).

Page 21

Section: "LDAP and Active Directory support": "PowerFlex supports authentication and authorization using LDAP and Active Directory (AD). You can add one or more LDAP/AD servers to the system

and then import users and groups from the servers." This statement explicitly confirms LDAP support.

2. Dell PowerFlex 4.0 Administration Guide. (April 2023).

Page 101

Section: "Configure LDAP/AD": This section provides detailed instructions on how to "Add an LDAP or Active Directory server to the system for authentication and authorization purposes." It does not mention TACACS+

SAML

or RADIUS as alternatives.