Creating a Management Routing Instance (VRF) on Juniper QFX5100
For a Ceph cluster I have two Juniper QFX5100 switches running as a Virtual Chassis. This Virtual Chassis is currently only performing L2 forwarding, but I want to move this to a L3 setup where the QFX switches use Dynamic Routing (BGP) and thus become the gateway(s) for the Ceph servers. This should work, but […]
Slow requests with Ceph: ‘waiting for rw locks’
Slow requests in Ceph When a I/O operating inside Ceph is taking more than X seconds, which is 30 by default, it will be logged as a slow request. This is to show you as a admin that something is wrong inside the cluster and you have to take action. Origin of slow requests Slow […]