Hi, I have a test Ceph cluster in my lab which will be a storage backend for one of my projects. This cluster is my first experience on CentOS-7, but recently I had some use case on Ubuntu 14.04 too.
Actually everything works fine and I have a good functionality on this cluster, but the main problem is the performance of cluster in read and write data. I have too much swing in read and write and the rate of this swing is between 60 KB/s - 70 MB/s, specially on read. how can I tune this cluster as stable storage backend for my case? More information: Number of OSDs: 5 physical server with 4x4TB - 16 GB of RAM - Core i7 CPU Number of Monitors: 1 virtual machine with 180 GB on SSD - 16 GB of RAM - on an KVM Virtualization Machine All Operating Systems: CentOS 7.2 with default kernel 3.10 All File Systems: XFS Ceph Version: 10.2 Jewel Switch for Private Networking: D-Link DGS-1008D Gigabit 8 NICs: Gb/s NIC x 2 for each server Block Device on Client Server: Linux kernel RBD module Thank you Roozbeh
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