Data Domain Device Offerings

Data Domain has several appliance offerings, each with different capacity and ability to read and write data at different volumes.  There are 2 basic types:  The data less head architecture and the all-in-one.  The data less head are the larger units like the 860, 890 and 990, each having a minimum number of hard drives (4) that runs the OS only.  All data is kept on storage shelves.  This allows for easier upgrade, since data would not need to be migrated off the head to a storage shelf.

All-in-one come in both internally and externally expandable versions.  The DD640 and DD670 are externally expandable, but will store data on the head as well as expansion shelves.  The internally expandable DD620 and DD160 are only able to add internal drive capacity until the chassis is full, going from 7 to 12 drives in 1 TB size for the DD620 and 500GB for the DD160.

The "big kahuna" is the DD990 which is a quad-socket, 4U 10-core Xeon processor with RAM starting at 128 GB and expanding to 285TB.  It can write 31 TB/hour aggregate using DD Boost, and has up to 100PB of logical capacity with 570TB on the active tier.  It will write 540 concurrent streams and read 150 concurrently.  It allows 270 destination replication contexts, with 540 destination replication streams and will accommodate ES30 expansion shelves with 1,2, or 3 TB drives.

The DD990 has 4 I/O slots, and can use up to 3 10 Gb Ethernet copper or optical cards, up to 4 dual-port optical 1 GbE cards, 4 quad-port copper 1GbE cards or 3 dual-port 8Gb Fibre Channel HBAs for VTL.  It also has up to 3 quad-port SAS2 HBAs for external storage.

With extended retention licensing, the DD990 has up to 2PB usable max and will handle up to 56 ES30 shelves. 

With DDOS upgrade from 5.2 to 5.3, the density and capacity is improved, also.  This is a software upgrade that will allow the usable space to go from 1.3PB to 2.0PB in the extended retention shelves, with 13-65 logical storage up to 20-100.  Can also use the 3TB hard drives with the 5.3 DDOS.

The DD890 is the next step down, handling up to 14.7 TB/hour aggregate and hold 285 TB on 12 shelves.  It will allow 185 write streams concurrently and 50 read streams, as well as 180 destination replication contexts and 90 source replication contexts.  It is a 2U, dual-socket hex-core Xeon system, supporting up to 96 GB of RAM, and 3 I/O slots.

The DD860 will handle 9.8 TB/hour sustained with DD Boost, and has capacity for 7.1PB of logical storage with 142 TB addressable.  It will expand with up to 12 ES30/ES20 shelves and write 90 concurrent streams and 50 read streams.  It will accommodate 90 replication co9ntexts (both source and destination) on it's 2U dual quad-core Xeon CPUs with 36-72 GB of memory.  It also has 3 I/O slots, and with the extended retention license will handle up to 142 TB on the active partition and everything else on the archive partition.

The DD670 is in the mid-range product line, handling 5.4 TB/hour write and 2.2 TB/hour read throughput.  It also will take 90 concurrent write streams and 50 read streams, and will do 90 to 1 replication contexts.  It has 2.7 PB of logical storage, with the entry model being 16GB RAM and no SAS HBA, expanding to 36 GB of RAM and 2 4-port SAS HBAs.  It is a 2U, single-socket quad core Xeon server with 3 I/O slots.

The DD640 will sustain 3.4 TB of write throughput and 1.3 TB of read throughput over 90 concurrent write streams 30 concurrent read streams.  It has capacity for 1.6 PB of logical storage.  The entry model has 8 GB RAM and no SAS HBA and expands to 20 GB RAM with 2 SAS HBA.  It also has 3 I/O slots.

The DD620is internally expandable only, and will handle 2.4 TB/hour write and 540 GB/hour read throughput.  It will accommodate 20 write streams and 16 read streams concurrently, with 30-1 replication contexts and 415 TB of logical storage.  The entry model has 7x1TB drives, expandable to 12x1TB drives in a 2U single socket dual core Xeon chassis with 2 I/O slots.

The DD160 is for small or remote offices.  It will handle 667GB write throughput, in 16 concurrent write streams and 4 read streams.  It will handle 20-1 replication contexts and has 43 TB logical storage over nearly 4 TB addressable.  It expands from 7x500GB drives to 12x500GB drives and up to 2 NIC of any choice except 10Gb.

The ES30 shelf is available after DDOS 5.1 and is available for the DD640 and larger.  The DD660 and larger are able to use both the ES30 and ES20 in the same Data Domain system, but they are not able to be in the same shelf set.  They are dual 4-lane 6Gb SAS enclosures.

Expanded capacity licensing needs to be purchased when the storage capacity exceeds the raw storage for the device.