Dell R720xd fan speed control
I run R720xd in my home lab setup. The very first thing was to resolve fan speed crisis, as default +16k rpm results in unlivable conditions.
This might also be suitable for other
Ceph PGs not deep scrubbed in time
Due to the nature of my single node Ceph instance, pretty much from the beginning, I have configured my scrub intervals to be a lot bigger than the default.
However, I kept getting
GPG Key sharing via WKD (Web Key Directory)
If you are using GPG from time to time, the key exchange might be not easy in all situations. To simplify the process, you can host your own Web Key Directory.
Here you
Ceph osd.x spilled over
Recently I encountered my first spillovers after upgrading to Ceph 18.2.
In other places, like Ceph health detail, such situation manifests as:
BLUEFS_SPILLOVER: 6 OSD(s) experiencing BlueFS spillover
osd.1
Back up the entire block device into S3
For this, we will use Rclone.
The device you want to back up should not have any writes for the duration of the backup, otherwise, you can end up with a broken file