Turn Any Shape into a Keychain with a 3D Printer

Turn Any Shape into a Keychain with a 3D Printer

Since getting a 3D Printer, I've been wondering on how to start designing prints myself. I've written up a short guide on turning images into shapes, then into models and finally making a print. In this article I will be using Adobe Photoshop, Cinema 4D and...
Ceph: Creating multiple OSDs on NVMe devices (luminous)

Ceph: Creating multiple OSDs on NVMe devices (luminous)

It is not possible to take advantage of NVMe SSD bandwidth with single OSD. 4 is the optimum number of partitions per SSD drive that gives best possible performance.http://tracker.ceph.com/projects/ceph/wiki/Tuning_for_All_Flash_Deployments#NVMe-SSD-partitioning Ceph...
Ceph: Creating multiple OSDs on NVMe devices (luminous)

Ceph: Dealing with Deep Scrubs

All Ceph cluster administrators have probably already faced some level of disruption caused by deep scrubbing. Deep scrubs are ruining the performance for my clients! Should I disable them? Hold on a minute, let's make sure we understand what a scrub and deep scrub...