ceph
Upgrading a Ceph Multi-Site S3 Platform from Squid to Tentacle
A practical Ceph RGW upgrade plan for multi-site S3 platforms, covering replication validation, canary rollout, S3 acceptance tests and the limits of rollback.
data
Stop using MinIO as a NoSQL database — why S3 object stores collapse on small-file workloads
Two MinIO platforms, same root cause: used as a NoSQL store. Field notes on LIST IOPS, XFS directory limits, scanner & heal SLAs, the erasure-coding storage-efficiency inversion on small objects, and why Apache Cassandra (or Ceph) is the right answer on-prem in 2026.
ceph
Migrating Unmanaged OSDs to Managed OSDs in Ceph Squid
If you are running Ceph Squid with a mix of managed and unmanaged OSDs, there is one thing worth stating clearly upfront: There is no in-place adoption mechanism in Squid. You cannot “import” an existing OSD into the orchestrator. If an OSD was deployed manually or predates your orchestrator setup, Read more
data
MinIO’s Community Edition: The End ? 🚨
Beware the AGPL! you may end with a product orphan from its S3 storage… MinIO has long been a popular open-source S3-compatible storage solution, but their strategy has shifted dramatically—especially since the release of their new AIstor product, now positioned as their main enterprise S3 offering. Over the past year, Read more
data
Who’s Using Ceph RBD Mirroring for Kubernetes Storage in Production?
Alpha Feature in Production… Good Idea? The most promising approach, journal-based mirroring, offers near real-time replication and faster failover. However, it’s currently an alpha feature in the Ceph CSI driver and relies on rbd-nbd, which introduces significant risks: For documentation on Ceph RBD mirroring see IBM documentation For details, see Read more
data
🚨 MinIO goes into maintenance mode
MinIO has just announced that the open source project is now in maintenance-only mode: no new features, no regular PR review, only best-effort community support.If your data lake, AI workloads or internal S3-compatible storage rely on MinIO, this is no longer a theoretical risk – it’s an operational one. Over Read more