Ceph OSD Daemon you run on the host. Most "slow OSD" issues arise due to running
an operating system, multiple OSDs, and/or multiple journals on the same drive.
Since the cost of troubleshooting performance issues on a small cluster likely
-exceeds the cost of the extra disk drives, you can accelerate your cluster
+exceeds the cost of the extra disk drives, you can optimize your cluster
design planning by avoiding the temptation to overtax the OSD storage drives.
You may run multiple Ceph OSD Daemons per hard disk drive, but this will likely
Networks
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-We recommend that each host have at least two 1Gbps network interface
+We recommend that each host has at least two 1Gbps network interface
controllers (NICs). Since most commodity hard disk drives have a throughput of
approximately 100MB/second, your NICs should be able to handle the traffic for
the OSD disks on your host. We recommend a minimum of two NICs to account for a