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DR Series Software 3.2.0.2 - Administrator Guide

Introduction to the DR Series System Documentation Understanding the DR Series System Setting Up the DR Series System Hardware Configuring the DR Series System Settings Managing DR Series Storage Operations Monitoring the DR Series System Using Global View Using the DR Series System Support Options Configuring and Using Rapid NFS and Rapid CIFS Configuring and Using Rapid Data Access with Dell NetVault Backup and with Dell vRanger Configuring and Using RDA with OST
Understanding RDA with OST Guidelines Terminology Supported RDA with OST Software and Components Best Practices: RDA with OST and the DR Series System Setting Client-Side Optimization Configuring an LSU Installing the RDA with OST Plug-In Configuring DR Series System Information Using NetBackup Backing Up Data From a DR Series System (NetBackup) Using Backup Exec With a DR Series System (Windows) Understanding the OST CLI Commands Understanding RDA with OST Plug-In Diagnostic Logs Collecting Diagnostics Using a Linux Utility Guidelines for Gathering Media Server Information
Configuring and Using VTL Configuring and Using Encryption at Rest Troubleshooting and Maintenance Supported Ports in a DR Series System Getting Help

NFS

NFS

The Network File System (NFS) is a file system protocol that is designated to be a file server standard, and its protocol uses the Remote Procedure Call (RPC) method of communication between computers. Clients can access files via the network similar to the way that local storage is accessed.

NFS is a client-server application in which a client can view, store, and update files on a remote system just like they are working on a local system. System or Network Administrators can mount all or a portion of a file system, and the file system (or portion) that is mounted can be accessed using the privileges assigned to each file.

NOTE: If you want to do a mount on AIX, you must set the nfs_use_reserved_ports and portcheck parameters first. The parameters cannot be set to 0. For example: root@aixhost1 / # nfso -po portcheck=1 root@aixhost1 / # nfso -po nfs_use_reserved_ports=1
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CIFS

CIFS

The Common Internet File System (CIFS) remote file access protocol is one supported by the DR Series system, and is also known as a Server Message Block (SMB). SMB occurs more commonly than the Network File System (NFS) protocol on systems that run the Microsoft Windows operating system. CIFS allows programs to request files or services on remote computers.

CIFS also uses the client-server programming model, whereby the client requests access to a file or passes a message to a program running on the server. Servers review all requested actions and return a response. CIFS is a public (or open) variation of the SMB that was originally developed and used by Microsoft.

NOTE: The DR Series system currently supports version 1.0 of the Server Message Block (SMB).
 
NOTE: For details on CIFS feature restrictions, see the Dell DR Series System Interoperability Guide, at support.dell.com/manuals.
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CIFS ACL Support

CIFS ACL Support

The DR Series system software supports the use of access control lists (ACLs) for CIFS and share-level permissions. By definition, an ACL is simply a list of permissions that can be associated with any network resource.

Each ACL can contain access control entries (ACEs) that define or describe the permissions for an individual user or a group of users. An ACL can consist of zero (meaning that all users have access) or a number of ACEs that define specific permissions on a per-user or per-group basis.

NOTE: If an ACE list is empty (meaning that it contains zero entries), this means that all access requests will be granted.

An ACL describes the entities that are allowed to access a specific resource. ACLs are a built-in access control mechanism in the Windows operating systems.

 
NOTE: The DR Series system supports setting up share-level permissions for a CIFS share using a Microsoft Windows administrative tool. Share-level permissions let you control access to shares. For more information, see Configuring Share-Level Security.
 
NOTE: Any user that is part of BUILTIN\Administrators can edit ACLs on CIFS shares. The local DR Series system administrator is included in the BUILTIN\Administrators group. To add additional domain groups to the BUILTIN\Administrators group, you can use the Computer Manager tool on a Windows client to connect to the DR Series system as Domain administrator and add any groups you want. This capability allows users other than the Domain administrator to modify an ACL as needed.
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Access Control List Support in Containers

Access Control List Support in Containers

All new containers apply a default Access Control List (ACL) at the root of the container. This default ACL is the same as that which would be created by a Microsoft Windows 2003 Server. Therefore, these new containers with the default ACL support the following permission types:

NOTE: Any user that is part of BUILTIN\Administrators can edit ACLs on CIFS shares. The local DR Series system administrator is included in the BUILTIN\Administrators group. To add additional domain groups to the BUILTIN\Administrators group, you can use the Computer Manager tool on a Windows client to connect to the DR Series system as Domain administrator and add any groups you want. This capability allows users other than the Domain administrator to modify an ACL as needed.
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BUILTIN\Administrators:
Allows
Full access, object inherit, and container inherit.
Applies to
This folder, subfolders, and files.
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CREATOR OWNER:
Allows
Full access, inherit only, object inherit, and container inherit.
Applies to
Subfolders and files only.
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EVERYONE:
Allows
Traverse folders, execute files, list folders, read data, read attributes, and read extended attributes.
Applies to
This folder only.
•
NT AUTHORITY\SYSTEM:
Allows
Full access, object inherit, and container inherit.
Applies to
This folder, subfolders, and files.
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BUILTIN\Users:
Allows
Create folders and append data, inherit-only, and container inherit.
Applies to
This folder, subfolders, and files.
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BUILTIN\Users:
Allows
Read and execute, and container inherit.
Applies to
This folder, subfolders, and files.
•
BUILTIN\Users:
Allows
Create files and write data, object inherit, and container inherit.
Applies to
Subfolders only.
 
NOTE: If these permissions are unsuitable for your needs, you can modify the default ACL to suit your own requirement using the Windows ACL Editor (for example, using Properties → Security from Windows Explorer).
 
NOTE: The system does not understand the Owner Rights permission and sets the owner of new files/folders created by the Domain Administrators as DOM\Administrator rather than as BUILTIN\Administrators.
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