Storageflex 3945N manual Uninterruptible Power Supply UPS, User Authentication Types

Administrator Guide

TCP/IP is the protocol that most computers use for communication on the Internet and Local Area Networks (LANs). TCP/IP is comprised of two distinct parts. The Transmission Control Protocol (TCP) establishes a connection with both the server and client ends, and passes data to the connectionless Internet Protocol (IP). TCP is responsible for correct delivery of data from one computer to another. If data is lost en route to the destination, TCP retransmits until the data is either received successfully, or a timeout occurs. The Internet Protocol is responsible for actually moving data from one node of the network to another. Therefore, each packet of data is forwarded to the correct IP address using the Internet Protocol.

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UNIX

UNIX is an operating system that is widely used on servers in a variety of contexts, including the Internet. Since UNIX is multi-user (multiple users can access a UNIX based system at the same time), it is used for running a server. Clients who wish to log on to a UNIX server need to either be running a UNIX based operating system or have a program that allows their workstation to use NFS. The Storageflex server is based on the Linux operating system, a free, open source version of UNIX.

Uninterruptible Power Supply (UPS)

A UPS is an AC powered battery that computers are plugged into. The purpose of a UPS is to allow computer to shut down safely when the power goes out. Storageflex server software has UPS support built in so that when the power cord and a serial cable is plugged in to a supported UPS, the appliance has the ability to safely shutdown when the battery level becomes critical in a power outage. This ensures that no data is lost during power outages.

User Authentication Types

Storageflex offers three different methods for authenticating users.

1Users Authenticated on the Appliance (Storageflex Server Mode)

In this method of authentication, all user and group information is created and maintained on the hard drive of the appliance. Therefore, each time a user attempts to connect to a private share on the appliance, Storageflex verifies that the user is allowed to access the share.

2Users Authenticated on the Primary Domain Controller – PDC (Mixed Mode)

In this method authentication, all user and group information is created and maintained on the NT server. When using PDC authentication, user and group information cannot be viewed or modified in ApplianceView. A user connects to a private share on the appliance then the PDC verifies that the user is allowed to access the share.

3Users Authenticated on the Active Directory Services (Native Mode)

In this method of authentication, all user and group information is

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