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QoreStor 5.1.0 - User Guide

Introducing the QoreStor documentation Introducing QoreStor Setting up your QoreStor system Configuring QoreStor settings Managing storage groups Managing containers Managing replications Managing Users Managing QoreStor Remotely Monitoring the QoreStor system Configuring and using Rapid NFS and Rapid CIFS Configuring and using VTL Configuring and Using Encryption at Rest Support, maintenance, and troubleshooting About us

Reverse replication: alternate method

For an alternate method of reverse replication, complete the following steps:

  1. Create a new container on the target QoreStor instance.
  2. Set up replication from this container back to the source QoreStor container.
  3. Set up a new disk storage unit in your Data Management Application (DMA) and make sure that the DMA is aware of any new images.
  4. Import the old images back into the DMA from the target QoreStor instance (the original source location).
  5. Use a new disk storage unit in the DMA, and then restore the data back to the original client.

Supported file system protocols

QoreStor supports the following file system protocols. The Rapid Data Access (RDA) protocols below provide a logical disk interface that can be used with network storage devices to store data and support data storage operation.

  • Network File System (NFS)
  • Common Internet File System (CIFS)
  • Rapid Data Access (RDA)
    • Rapid NFS
    • Rapid CIFS
    • RDA with OpenStorage Technology (OST)
    • RDA with NetVault Backup
    • RDA with vRanger
  • The virtual tape library (VTL) tape access protocols:
    •  Network Data Management Protocol (NDMP)
    •   Internet Small Computer System Interface (iSCSI)
    •  Fibre Channel (FC)

CIFS

The Common Internet File System (CIFS) remote file access protocol is supported by QoreStor, 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: QoreStor currently supports version 2.0 and 3.0 of the Server Message Block (SMB).

NOTE: For complete details on CIFS feature restrictions, see the QoreStor Interoperability Guide, at support.quest.com/qorestor.

CIFS ACL support

QoreStor 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: QoreStor 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.

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