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Cephyr

Cephyr is a storage system running Ceph for managing filesystem, block storage and object storage.

Currently ceph manage two group of hardwares:

Mimer server

Group 1:

  • 14 Lenovo SR630v2 servers with:
    • 2 x Intel Xeon Silver 4314 16c 2.3GHz Processors, 256 GB memory
    • 2 x M.2 5300 480GB SSD (Mirrored for OS)
    • 3 x 800GB NVMe PCIe 4.0 (for Ceph journal and database)
    • 1 x Mellanox ConnectX-6 100 Gb 2-port Ethernet adapter
    • 1 x Mellanox ConnectX-6 10/25 Gb 2-Port Ethernet adapter
  • 7 Lenovo D3284 JBOD with 84x 14TB SAS HDD Drives
  • Two servers connect to one JBOD
  • A total of 8232 TB raw / 6860 TB usable capacity (shared with the Mimer Bulk tier)

Mimer JBOD

Group 2:

  • 12 Lenovo SR630v2 servers with:
    • 2 x Intel Xeon Gold 6326 16c 2.9GHz Processor, 384 GB memory
    • 2 x M.2 480GB SSD For OS
    • 10 x Intel SSDPF2KX153T1O 15.36TB NVMe PCIe 4.0
    • 2 x Mellanox ConnectX-6 Dx 2x100 Gb Ethernet adapters
    • A total of 1843 TB raw / 1474 TB usable capacity

Applying for project storage

As of 2026-07-01 Cephyr is no longer part of NAISS and you can not freely apply for storage.

If you need storage for your project on Vera, then your options are:

  1. Purchase storage
  2. Cost per TB per calendar year.
  3. Contact support@c3se.chalmers.se for details.
  4. Department storage allocation
  5. Board decides on department allocations every year and all departments are informed of this.
  6. Departments decide themselves how they wish to split up their storage for their research groups.
  7. Contact your boss/department head for details.

Contact C3SE support if you have questions.

Compute project on clusters are always a requirement to access storage.

Project Storage Decommissioning

See Parent Page