This topic describes how to create a Super Computing Cluster (SCC) instance.

Super Computing Cluster (SCC) is based on the ECS Bare Metal instance type. By utilizing the high-speed interconnectivity of RDMA (Remote Direct Memory Access) technology, SCC greatly improves network performance and increases the acceleration ratio of large-scale clusters. SCC offers all the advantages of ECS Bare Metal instances, and provides high-quality network performance featuring high bandwidth and low latency. For more information, see ECS Bare Metal instance and Super Computing Clusters.


You can create an SCC instance by following the instructions described in Create an ECS Instance.

However, the following configurations must be considered:

  • Region: Select the region and zone according to the table Regions and zones where SCC instances are available. Note that the purchase page displays the latest region and zone information, which may differ from information provided in this topic.
  • Network Type: Only VPC is supported.
  • Instance Type: Currently, the instance type families scch5, sccg5, and sccgn6 are available.
  • Image: Select Public Image. Currently, only a custom Linux CentOS 7.5 image for SCC is supported.
    Note The custom image supports the RDMA RoCE driver and OFED stack. You can use the RDMA functions through IB verbs programming or implement RDMA communication through MPI.
  • Storage: SCC supports up to 16 data disks. You can add a data disk during or after instance creation, and then mount the data disk.

Regions and zones where SCC instances are available

The following table shows the regions and zones where SCC instances are available.

Instance type family Region and zone
scch5 China (Shanghai) Zones D and B
sccg5 China (Shanghai) Zones D and B
  • China (Shanghai)
  • China (Beijing)
  • China (Zhangjiakou)

What to do next

If you not only need to use the RDMA feature, but also need to use the HPC scheduler and the cluster scaling service, you can create an SCC instance by creating an SCC cluster through the E-HPC console.
Note For more information about the availability of SCC instances, see Regions and zones where SCC instances are available. Note that only the Subscription billing method is supported.