Ceph peering state machine
Ceph provides a script to generate a graph for the peering state machine, which is super helpful to study the state transitions of placement groups. To generate the graph, here are the commands: This is…Continue Reading
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Query vendor with the PCI device vendor ID
In Linux, each PCI device is associated with a 2-byte vendor ID. Here is an example: To decode the ID to be the name of the vendor, we need mapping information between the ID and…Continue Reading
Initial Commit
This is a placeholder to remember (and announce) my first day of blogging.