Avamar nodes capacity and hardware

For Gen4 3.9TB node :
Raw capacity is 6 TB and licensed capacity is 3.9 TB

For Gen4 7.8 TB node:
Raw capacity is 12 TB and licensed capacity is 7.8 TB

So, In a RAIN config with 1 utility node and 4 storage nodes (7.8 TB), the total capacity should be 48 TB and total licensed capacity is 31.2 TB


Single Node:

• A single stand-alone node of Avamar with the brains and the storage capacity all in one.

RAIN Configuration:

• Redundant Array of Independent Nodes.  Think of a RAID5 array of servers instead of disks

Storage Node:

• A single Avamar server appliance (2U server).  They are available in 1TB, 2TB and now 3.3TB configurations.

Utility Node:    

• An Avamar appliance similar to the storage node (same physical size) that works as the brains of an Avamar system.

With the release of the new Gen4 nodes, we can now take advantage of higher density disks and improved hardware configurations.  There are 6 different type of nodes: Accelerator node, Utility node, 1.3TB, 2.6TB, 3.9TB and 7.8TB storage nodes.

All of the above node types now sport a single Quad Core Processor with the exception of the Accelerator node containing 2 Quad Core Processors, this is a step above the single processor in previous Gen models. 
Disks are now configured in a RAID 1 configuration for increased performance.  All node chassis’ are the R710 model with support up to 6 drives, except the 7.8TB node that has a R510 chassis which can support up to 12 drives.

A thing to note about the 7.8TB node, is the inclusion of a 100GB SSD for increased memory performance focusing on indexes.  With the increased amount of disks and activity, this should keep the performance in line with the other nodes.
Here is a table with the different type of Nodes and their perspective hardware configuration:

Nodes	Disk	RAM	CPU	Ethernet	Chassis	RAIN
7.8TB	12x2TB SATA 6x RAID 1 pairs	32GB 100GB SSD	1	4	R510	Yes
3.9TB	6x2TB SATA 3x RAID 1 pairs	36GB	1	4	R710	Yes
2.6TB	4x2TB SATA 2x RAID 1 pairs	24GB	1	4	R710	No
1.3TB	2x2TB SATA 1x RAID 1 pair	12GB	1	4	R710	No
Utility	2x300GB SAS 1x RAID 1 pair	12GB	1	8	R710	-
Accelerator	2x300GB SAS 1x RAID 1pair	36GB	2	4	R710

Switch:
Manufacturer:              Allied Telesis
Model:                                 AT-9924 (dumbed down to basically a hub)
Type:                                   Multilayer IPv4 and IPv6 Gigabit switch
Ports:                                    24
Power:                                 Dual Power Supplies – 75W maximum
Heat (BTU):                     256 BTU/hr
Size:                                        1 U each
Switching Capacity:   48Gbps