Administrator Guide

• Lire les attributs étendus (EA)

• Ėcrire des attributs étendus (EA)

• Exécuter un fichier ou traverser des dossiers

• Supprimer un enfant ou des dossiers

• Supprimer un fichier

Le type d'utilisateur Propriétaire dispose de deux autorisations par défaut :

• Ėcrire une liste de contrôle d'accès discrétionnaire

• Contrôle en lecture

OpenStorage Technology (OST): DR Series System

OpenStorage Technology (OST) is developed by Symantec and provides a logical disk interface for use with network

storage devices. The DR Series system appliance can use OST via plug-in software to integrate its data storage

operations with a number of data management applications (DMAs).

OST allows for better coordination and integration between DR Series system backup, restore, and optimized duplication

operations and the following supported DMA types:

• NetBackup

• Backup Exec

Integration is done via a Dell OST plug-in developed for the DR Series system, through which NetBackup and Backup

Exec can control when the backup images are created, duplicated, and deleted. The major benefit of OST is that it

allows the deduplication operations to happen on the client-side so that network traffic can be reduced.

OST via the Dell OST plug-in allows NetBackup and Backup Exec to take full advantage of such DR Series system

features as data deduplication, replication, and energy efficiency. DR Series systems can access the OpenStorage API

code through the plug-in, which can be installed on the media server platform choice you make (Windows or Linux). The

OST protocol allows the supported backup applications to communicate directly with the DR Series system and

determine whether a specific chunk of data already exists on the system. This process means that if the data already

exists, only the pointers need to be updated on the DR Series system, and the duplicate chunk of data does not need to

be transferred to the system. This process provides two benefits: it improves the overall backup speed, and also reduces

the network load.

When OST is used with the DR Series system, it offers the following benefits:

• OST protocol provides faster and improved data transfers:

– Focused on backups with minimal overhead

– Accommodates larger data transfer sizes

– Provides throughput that is significantly better than CIFS or NFS

• OST and DMA integration:

– OpenStorage API enables the DMA-to-media server software communications

– DR Series system storage capabilities can be used without extensive changes to DMAs

– Backup and replication operations are simplified by using built-in DMA policies

• DR Series System and OST:

– Control channel uses TCP port 10011

– Data channel uses TCP port 11000

– Optimized write operations enable client-side deduplication