Chapter 6. Recommended Minimum Hardware
Ceph can run on non-proprietary commodity hardware. Small production clusters and development clusters can run without performance optimization with modest hardware.
| Process | Criteria | Minimum Recommended |
|---|---|---|
|
| Processor | 1x AMD64 or Intel 64 |
| RAM | Red Hat typically recommends a baseline of 16GB of RAM per OSD host, with an additional 2 GB of RAM per daemon | |
| OS Disk | 1x OS disk per host | |
| Volume Storage | 1x storage drive per daemon | |
| Journal | 1x SSD partition per daemon (optional) | |
| Network | 2x 1GB Ethernet NICs | |
|
| Processor | 1x AMD64 or Intel 64 |
| RAM | 1 GB per daemon | |
| Disk Space | 10 GB per daemon | |
| Monitor Disk |
1x SSD disk for | |
| Network | 2x 1GB Ethernet NICs | |
|
| Processor | 1x AMD64 or Intel 64 |
| RAM | 1 GB per daemon | |
| Disk Space | 5 GB per daemon | |
| Network | 1x 1GB Ethernet NICs | |
|
| Processor | 1x AMD64 or Intel 64 |
| RAM | 2 GB per daemon
This number is highly dependent on the configurable MDS cache size. The RAM requirement is typically twice as much as the amount set in the | |
| Disk Space | 2 MB per daemon, plus any space required for logging, which might vary depending on the configured log levels | |
| Network | 2x 1GB Ethernet NICs Note that this is the same network as the OSDs. If you have a 10 GB network on your OSDs you should use the same on your MDS so that the MDS is not disadvantaged when it comes to latency. |
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