About the DR Series SystemThe Dell DR Series system is a solution designed to reduce your backup data footprint using a number of comprehensivebackup and deduplication operations that optimize storage savings. Collectively, the DR Series system comes in thefollowing types:• DR4000 system: This is preinstalled DR4000 system software on a Dell PowerEdge R510 appliance platform.• DR4100 system: This is preinstalled DR4000 system software on a Dell PowerEdge R720xd appliance platform.The DR Series system consists of the following components:• Software — The system software supports record linkage and context-based lossless data compression methods.• Hardware — Following are the appliance types that support the DR Series:– DR4000 system: Includes twelve 3.5 inch SAS or Nearline SAS chassis drives that are hot-swappable, two powersupplies for power redundancy, and two cabled 2.5-inch SAS drives for the operating system. The operatingsystem is installed on two 2.5–inch internal drives that are in a RAID 1 configuration in the DR4000 system.– DR4100 system: Includes twelve 3.5 inch SAS or Nearline SAS chassis drives that are hot-swappable, two powersupplies for power redundancy, and includes two 2.5-inch drives that are hot-pluggable in the rear.NOTE: For slot locations for the twelve 3.5–inch drives in the DR Series system types, see DR Series Systemand Data Operations.• Expansion shelf—The system appliance supports the addition of external Dell PowerVault MD1200 data storageexpansion shelf enclosures. Adding an expansion shelf provides additional data storage for the DR Series systemand also requires a license. Each added expansion shelf enclosure must be equal to or greater than each DR Seriessystem internal drive slot capacity (0–11). For more information, see “Expansion Unit Limits” in theDell DR SeriesSystem Interoperability Guide and see Expansion Shelf Licenses in this guide. For more general information aboutthe supported storage enclosures, see “DR Series Expansion Shelf” in DR Series System and Data Operations.Drive and Available Physical CapacitiesTable 1 defines the internal system drive capacity and available physical capacity (in decimal and binary values) in theDR Series system. The DR Series system comes in the following types:• DR4000 system—which consists of preinstalled system software on a modified Dell R510 appliance platform.• DR4100 system—which consists of preinstalled system software on a modified Dell R720xd appliance platform.Internal Drive CapacityThe capacity values listed in Table 1 represent the internal drive and available physical capacities that have beenadjusted for the associated overhead in the DR Series system releases. Logical capacity assumes 15:1 savings ratio;actual could be different.NOTE: In Table 1, the abbreviations TB and GB represents Terabytes and Gigabytes in decimal values, and theabbreviation TiB represents Tebibytes in binary values. Tebibytes are a standards-based binary multiple of thebyte, a unit of digital information storage.14
