1 Ceph RADOS Block Devices (RBD)
2 ------------------------------
8 Storage pool type: `rbd`
10 http://ceph.com[Ceph] is a distributed object store and file system
11 designed to provide excellent performance, reliability and
12 scalability. RADOS block devices implement a feature rich block level
13 storage, and you get the following advantages:
17 * distributed and redundant (striped over multiple OSDs)
18 * full snapshot and clone capabilities
20 * no single point of failure
21 * scalable to the exabyte level
22 * kernel and user space implementation available
24 NOTE: For smaller deployments, it is also possible to run Ceph
25 services directly on your {pve} nodes. Recent hardware has plenty
26 of CPU power and RAM, so running storage services and VMs on same node
32 This backend supports the common storage properties `nodes`,
33 `disable`, `content`, and the following `rbd` specific properties:
37 List of monitor daemon IPs.
49 Access rbd through krbd kernel module. This is required if you want to
50 use the storage for containers.
52 .Configuration Example (`/etc/pve/storage.cfg`)
55 monhost 10.1.1.20 10.1.1.21 10.1.1.22
61 TIP: You can use the `rbd` utility to do low-level management tasks.
66 If you use `cephx` authentication, you need to copy the keyfile from
67 Ceph to Proxmox VE host.
69 Create the directory `/etc/pve/priv/ceph` with
71 mkdir /etc/pve/priv/ceph
75 scp <cephserver>:/etc/ceph/ceph.client.admin.keyring /etc/pve/priv/ceph/<STORAGE_ID>.keyring
77 The keyring must be named to match your `<STORAGE_ID>`. Copying the
78 keyring generally requires root privileges.
83 The `rbd` backend is a block level storage, and implements full
84 snapshot and clone functionality.
86 .Storage features for backend `rbd`
87 [width="100%",cols="m,m,3*d",options="header"]
88 |==============================================================================
89 |Content types |Image formats |Shared |Snapshots |Clones
90 |images rootdir |raw |yes |yes |yes
91 |==============================================================================
98 * link:/wiki/Storage[Storage]