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49 lines
1.4 KiB
ReStructuredText
49 lines
1.4 KiB
ReStructuredText
==========================
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Block Device Quick Start
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==========================
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To use this guide, you must have executed the procedures in the `Object Store
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Quick Start`_ guide first. Ensure your :term:`Ceph Storage Cluster` is in an
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``active + clean`` state before working with the :term:`Ceph Block Device`.
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Execute this quick start on the admin node.
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.. note:: The Ceph Block Device is also known as :term:`RBD` or :term:`RADOS`
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Block Device.
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#. Install ``ceph-common``. ::
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sudo apt-get install ceph-common
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#. Create a block device image. ::
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rbd create foo --size 4096 [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]
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#. Load the ``rbd`` client module. ::
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sudo modprobe rbd
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#. Map the image to a block device. ::
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sudo rbd map foo --pool rbd --name client.admin [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]
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#. Use the block device. In the following example, create a file system. ::
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sudo mkfs.ext4 -m0 /dev/rbd/rbd/foo
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This may take a few moments.
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#. Mount the file system. ::
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sudo mkdir /mnt/ceph-block-device
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sudo mount /dev/rbd/rbd/foo /mnt/ceph-block-device
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cd /mnt/ceph-block-device
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.. note:: Mount the block device on the client machine,
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not the server machine. See `FAQ`_ for details.
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See `block devices`_ for additional details.
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.. _Object Store Quick Start: ../quick-ceph-deploy
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.. _block devices: ../../rbd/rbd
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.. _FAQ: http://wiki.ceph.com/03FAQs/01General_FAQ#How_Can_I_Give_Ceph_a_Try.3F
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