Cephyr¶

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

Currently ceph manage two group of hardwares:

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)

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
   • Cost per TB per calendar year.
   • Contact support@c3se.chalmers.se for details.
2. Department storage allocation
   • Board decides on department allocations every year and all departments are informed of this.
   • Departments decide themselves how they wish to split up their storage for their research groups.
   • 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