ceph performance ssd

Good afternoon. I am experiencing problems with poor ceph performance, with dd showing good results, but integration with a VM with a disk on ceph raises doubts and problems. For example, the time echo command can be executed both 00.000 ms and 02.000ms and varies in this interval, that is, it...

Hello All, I need some recommendation on improving my cluster. I have a 4 node cluster with CEPH having 65 OSDs at 30 TB capacity. My cluster communication is currently at 1G NIC and I dont have any SSDs in my servers. I recently had issue with disk I/O time with some web-servers applications...