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49 lines
2.8 KiB
ReStructuredText
49 lines
2.8 KiB
ReStructuredText
==========================
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Hardware Recommendations
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==========================
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Ceph runs on commodity hardware and a Linux operating system over a TCP/IP
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network. The hardware recommendations for different processes/daemons differ
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considerably.
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OSD hosts should have ample data storage in the form of a hard drive or a RAID.
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Ceph OSDs run the RADOS service, calculate data placement with CRUSH, and
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maintain their own copy of the cluster map. Therefore, OSDs should have a
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reasonable amount of processing power.
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Ceph monitors require enough disk space for the cluster map, but usually do
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not encounter heavy loads. Monitor hosts do not need to be very powerful.
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Ceph metadata servers distribute their load. However, metadata servers must be
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capable of serving their data quickly. Metadata servers should have strong
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processing capability and plenty of RAM.
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.. note:: If you are not using the Ceph File System, you do not need a meta data server.
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+--------------+----------------+------------------------------------+
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| Process | Criteria | Minimum Recommended |
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+==============+================+====================================+
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| ``ceph-osd`` | Processor | 64-bit AMD-64/i386 dual-core |
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| +----------------+------------------------------------+
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| | RAM | 500 MB per daemon |
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| +----------------+------------------------------------+
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| | Volume Storage | 1-disk or RAID per daemon |
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| +----------------+------------------------------------+
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| | Network | 2-1GB Ethernet NICs |
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+--------------+----------------+------------------------------------+
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| ``ceph-mon`` | Processor | 64-bit AMD-64/i386 |
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| +----------------+------------------------------------+
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| | RAM | 1 GB per daemon |
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| +----------------+------------------------------------+
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| | Disk Space | 10 GB per daemon |
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| +----------------+------------------------------------+
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| | Network | 2-1GB Ethernet NICs |
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+--------------+----------------+------------------------------------+
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| ``ceph-mds`` | Processor | 64-bit AMD-64/i386 quad-core |
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| +----------------+------------------------------------+
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| | RAM | 1 GB minimum per daemon |
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| +----------------+------------------------------------+
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| | Disk Space | 1 MB per daemon |
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| +----------------+------------------------------------+
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| | Network | 2-1GB Ethernet NICs |
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+--------------+----------------+------------------------------------+
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