1 Ceph RADOS Block Devices (RBD)
2 ------------------------------
3 include::attributes.txt[]
10 Storage pool type: `rbd`
12 http://ceph.com[Ceph] is a distributed object store and file system
13 designed to provide excellent performance, reliability and
14 scalability. RADOS block devices implement a feature rich block level
15 storage, and you get the following advantages:
19 * distributed and redundant (striped over multiple OSDs)
20 * full snapshot and clone capabilities
22 * no single point of failure
23 * scalable to the exabyte level
24 * kernel and user space implementation available
26 NOTE: For smaller deployments, it is also possible to run Ceph
27 services directly on your {pve} nodes. Recent hardware has plenty
28 of CPU power and RAM, so running storage services and VMs on same node
34 This backend supports the common storage properties `nodes`,
35 `disable`, `content`, and the following `rbd` specific properties:
39 List of monitor daemon IPs.
51 Access rbd through krbd kernel module. This is required if you want to
52 use the storage for containers.
54 .Configuration Example (`/etc/pve/storage.cfg`)
57 monhost 10.1.1.20 10.1.1.21 10.1.1.22
63 TIP: You can use the `rbd` utility to do low-level management tasks.
68 If you use `cephx` authentication, you need to copy the keyfile from
69 Ceph to Proxmox VE host.
71 Create the directory `/etc/pve/priv/ceph` with
73 mkdir /etc/pve/priv/ceph
77 scp <cephserver>:/etc/ceph/ceph.client.admin.keyring /etc/pve/priv/ceph/<STORAGE_ID>.keyring
79 The keyring must be named to match your `<STORAGE_ID>`. Copying the
80 keyring generally requires root privileges.
85 The `rbd` backend is a block level storage, and implements full
86 snapshot and clone functionality.
88 .Storage features for backend `rbd`
89 [width="100%",cols="m,m,3*d",options="header"]
90 |==============================================================================
91 |Content types |Image formats |Shared |Snapshots |Clones
92 |images rootdir |raw |yes |yes |yes
93 |==============================================================================
100 * link:/wiki/Storage[Storage]