
•
Append data or add a folder
•
Read Extended Attributes (EAs)
•
Write EAs
•
Execute file or traverse folders
•
Delete child or delete folders
•
Delete a file
The Owner user type has two default permissions:
•
Write discretionary ACL
•
Read control
Rapid Data Storage (RDS): DR Series System
Rapid Data Storage (RDS) is developed by Dell and provides a logical disk interface for use with network storage
devices. RDS allows for better coordination and integration between DR Series system backup, restore, and optimized
duplication operations with Dell NetVault Backup (NVBU).
The DR Series system and NVBU integration is done using the Rapid OFS (ROFS) plugin developed by Dell. The ROFS
plugin allows NVBU control over backup image creation, deletion, and duplication. RDS allows deduplication and
compression operations to happen on the client-side so that network traffic can be reduced.
The RDS 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. 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.
Rapid OFS (ROFS) API
NOTE: Rapid OFS (ROFS) is an internal API used by RDS. The term ROFS is not used in the web user interface or
CLI.
The Rapid OFS (ROFS) API is an application programming interface that allows disk-based devices like the DR Series
system to natively integrate with the Dell NetVault Backup. For example, because the DR Series system supports both
data deduplication and replication, the ROFS API allows these supported DMAs to use the DR Series system appliance
features and duplicate the optimized data from one storage appliance to another.
Unlike replication configured directly on the DR Series system for CIFS and NFS, the ROFS API allows the Data
Management Application (DMA) to be aware of the replication copy. The ROFS API allows the DMA to restore directly
from any DR Series system that can communicate with the DMA.
The ROFS API enables the writing of data to disk and allows NVBU (the DMA) to interact with the DR Series system (the
data backup and deduplication device) using the ROFS API.
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). Within Dell, OST is part of DR Rapid Data Access.
OST allows for better coordination and tighter integration between DR Series system backup, restore, and optimized
duplication operations and the following supported DMA types:
•
Symantec NetBackup
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