Ceph vs OrangeFS

Ceph is free, open-source distributed storage software for object, block, and file storage in one system. Organizations run clusters on commodity hardware that they choose and manage. Its RGW object storage supports the S3 API and Swift-compatible applications. RBD provides thin-provisioned disk images, snapshots, writable clones, and asynchronous mirroring to remote Ceph clusters. CephFS is a POSIX-compliant distributed filesystem with snapshots, quotas, and multi-cluster mirroring. The system can replicate data across devices, racks, and geographic locations, then redistribute it following hardware or connectivity failures. For Kubernetes, the project recommends Rook to run Ceph or connect an existing cluster; its CSI driver can provision block and file volumes. Installation choices include packages, container images, source clones, and tarballs. The cephadm tool requires Python 3, systemd, and Podman or Docker. Production guidance calls for at least three monitors, two managers, three OSDs, and 10 Gb/s networking between hosts. The project publishes a stable release annually and supports each series for approximately 24 months.

OrangeFS is a free, open-source parallel storage system for large workloads in high-performance computing, Big Data, streaming video, genomics, and bioinformatics. Its user-level servers and clients let applications access disk storage across multiple servers in parallel. Configurable file striping and distributed metadata, including directory metadata, support this layout. OrangeFS supports Linux, macOS, Windows, APIs, and self-hosted deployment. Linux integration uses a kernel client available in the mainline kernel since version 4.6, and the documentation recommends the upstream kernel module. Other interfaces include a native Windows parallel client, FUSE for Linux and Mac, a direct Linux application interface, Java JNI, Hadoop HCFS, WebDAV, and optimized MPI-IO; S3 is also listed among the file access protocols. Security options include capability-based security and default, key-based, and certificate-based modes. LDAP mapping can associate a client certificate subject with a user ID and primary group ID. CloudyCluster offers configurable deployments through Google Cloud and AWS marketplaces. The open-source software is free; commercial and research support is available by quote.