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43 lines
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43 lines
2.9 KiB
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========================
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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 network. The hardware
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recommendations for different processes/daemons differ considerably. Ceph OSDs run on commodity hardware
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and a Linux operating system over a TCP/IP network. OSD hosts should have ample data storage in the form of
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a hard drive or a RAID. Ceph OSDs run the RADOS service, calculate data placement with CRUSH, and maintain their
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own copy of the cluster map. So OSDs should have a reasonable amount of processing power. Ceph monitors require
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enough disk space for the cluster map, but usually do not encounter heavy loads. Monitors do not need to be very powerful.
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Ceph metadata servers distribute their load. However, they must be capable of serving their data quickly.
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Metadata servers should have strong 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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