blob: d25980cd937054588c9384dd7e641f804d798e54 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
==========================
Block Device Quick Start
==========================
To use this guide, you must have executed the procedures in the `Storage
Cluster Quick Start`_ guide first. Ensure your :term:`Ceph Storage Cluster` is
in an ``active + clean`` state before working with the :term:`Ceph Block
Device`.
.. note:: The Ceph Block Device is also known as :term:`RBD` or :term:`RADOS`
Block Device.
.. ditaa::
/------------------\ /----------------\
| Admin Node | | ceph–client |
| +-------->+ cCCC |
| ceph–deploy | | ceph |
\------------------/ \----------------/
You may use a virtual machine for your ``ceph-client`` node, but do not
execute the following procedures on the same physical node as your Ceph
Storage Cluster nodes (unless you use a VM). See `FAQ`_ for details.
Install Ceph
============
#. On the admin node, use ``ceph-deploy`` to install Ceph on your
``ceph-client`` node. ::
ceph-deploy install ceph-client
#. On the admin node, use ``ceph-deploy`` to grant the ``ceph-client``
administrator privileges, so you don't have to provide the Ceph
configuration file (``-c``) and key (``-k``) arguments.
This step is optional. ::
ceph-deploy admin ceph-client
Configure a Block Device
========================
#. On the ``ceph-client`` node, create a block device image. ::
rbd create foo --size 4096 [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]
#. On the ``ceph-client`` node, load the ``rbd`` client module. ::
sudo modprobe rbd
#. On the ``ceph-client`` node, map the image to a block device. ::
sudo rbd map foo --pool rbd --name client.admin [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]
#. Use the block device by creating a file system on the ``ceph-client``
node. ::
sudo mkfs.ext4 -m0 /dev/rbd/rbd/foo
This may take a few moments.
#. Mount the file system on the ``ceph-client`` node. ::
sudo mkdir /mnt/ceph-block-device
sudo mount /dev/rbd/rbd/foo /mnt/ceph-block-device
cd /mnt/ceph-block-device
See `block devices`_ for additional details.
.. _Storage Cluster Quick Start: ../quick-ceph-deploy
.. _block devices: ../../rbd/rbd
.. _FAQ: http://wiki.ceph.com/03FAQs/01General_FAQ#How_Can_I_Give_Ceph_a_Try.3F
|
