The expansion rack provides additional storage for SuperCluster M8 and SuperCluster M7. The additional storage can be used for backups, historical data, and unstructured data. Expansion racks can be used to add space to SuperCluster M8 and SuperCluster M7 as follows:
Add new storage servers and grid disks to a new Oracle Automatic Storage Management (Oracle ASM) disk group.
Extend existing disk groups by adding grid disks in an expansion rack.
Split the expansion rack among multiple SuperCluster M8 or SuperCluster M7 systems.
The expansion rack is available as a quarter rack, with four storage servers. You can increase the number of storage servers in the expansion rack up to a maximum of 18 storage servers. The storage servers are available with either Extreme Flash or High Capacity storage.
Each expansion rack has the following components:
4 storage servers, with 8 Extreme Flash or 12 High Capacity drives in each storage server
2 IB switches
Keyboard, video, and mouse (KVM) hardware
2 redundant 15 kVA PDUs (single-phase or three-phase, high voltage or low voltage)
1 Ethernet management switch