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Ceph¶

Ceph is a distributed scale-out storage.

  • Ceph Cluster Installation
    • Host Setup
    • Container Setup
    • Bootstrap Ceph cluster
  • Ceph Cluster Configuration
    • Enable mgr dashboard
    • Add System Administration User
    • Enable multiple CephFS filesystems
    • Ceph Pool Namingscheme
    • Create CephFS
    • Enable CephFS Snapshots
    • Enable multi-MDS
    • Enable dirfrag
    • Setting Replica defaults
    • Setting Minimum Number of Standby MDS’s
  • Ceph Cluster Usage
    • Check cluster health
    • Print list of users
    • CephX User
    • Setting Quotas
    • Mounting a CephFS
    • Runtime OSD Configuration
    • Rebooting a node
  • Ceph Cluster Troubleshooting
    • PG States
    • Check cluster health
    • Fix inconsistent PGs
    • Powering on a (failed) Cluster node
    • Stop OSD Rebalance
    • Stop Scrubbing
    • MDS Fails
    • Replace a disk
    • Resetting a SATA device
    • Moving to SSD journal
    • Remove mds damage (DANGEROUS, DON’T DO THAT)
    • Reformat a cephfs
  • Ceph Cluster Upgrade
    • 0. Terminology
    • 1. Prerequisites
    • 2. Host System Updates
    • 3. Container System Updates
  • Ceph Random Stuff
    • Setting Number of Placement Groups
    • Setting Number of Placement Groups for Placement
    • Increase Ceph MDS Cache
    • Increase CephFS Max Files per Directory
    • Adjust recovery settings
    • Create Ceph Pool
    • Assign application to Pool