Database Machine X3-8 is only offered in a Full Rack.
Both X3-2 and X3-8 database machines contain 14 Exadata X3-2 cells, 3 InfiniBand switches, 2 power distribution units (PDUs) and an Ethernet switch.The difference is with the database server configuration. It just has 2 computing nodes where as X3-2 has 8 computing nodes. But x3-8 database servers has more cpu cores and physical memory.
X3-8 database Machine configuration:
| Processors | 80 Intel CPU Cores |
| System Memory | 2TB |
| Disk Drives | 4 x 300 GB 10K RPM Disk Drives |
| Disk Controller | Disk Controller Host Bus Adapter with 512 MB Battery Backed Write Cache |
| Remote Management | Integrated Lights Out Manager (ILOM) Ethernet Port |
| Power Supplies | 4x Redundant Hot-Swappable Power Supplies |
| Network Interfaces | • Dual-Port QDR (40Gb/s) InfiniBand Host Channel Adapter • Four 1/10 Gb Ethernet Ports (copper) • Two 10Gb Ethernet Ports (optical) |
Exadata Storage Rack Expansions
For an example , you have fully utilized the full rack of the database machine and running out of the Exadata storage cell space.How do you scale up the environment ? Should we need to order another database machine ? No. We just require Exadata storage servers . So we need to order for the Exadata Storage Expansion Racks along with Exadata storage servers and infiniband switches.
The full rack of the Exadata storage expansion can accommodate 18 Exadata storage servers and 3 infiniband Switches.In Half Rack , you can accommodate 9 Exadata storage servers and 3 infiniband switches. In Quarter rack , you can have only 4 Exadata storage servers and 2 Infiniband switches.
Infiniband Network Overview
Infiniband provides the inter-connectivity between the database servers and Exadata storage servers with the speed of 40Gb/s .It is used for storage networking ,RAC interconnect and high performance external connectivity.It uses the ZDP protocol (Zero loss Zero Copy Datagram Protocol)so that very low CPU overhead required.
[box type=”info” ]To explorer theX3-2 Exadata database machine 3D view,check out the below link, http://oracle.com.edgesuite.net/producttours/3d/exadata-x3-2/index.html[/box]
[box type=”shadow” ]To explorer the X3-8 Exadata database machine 3D view,check out the below link,http://oracle.com.edgesuite.net/producttours/3d/exadata-x3-2/index.html[/box]
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