Challenge 1: Crush or Crash?


Before you begin, run the nusactl login command to login your account. Credentials for login is same with your registered credentials in this platform (ADINUSA).

student@ceph1:~$ nusactl login

After login, run the nusactl start cpadm-chall-1 command. This command runs the start script and pre-configures your challenge environment.

student@ceph1:~$ nusactl start cpadm-chall-1

NOTE: Be sure to run nusactl start so you can assess your work.


Oh no! incident occurred in the ceph cluster. when doing troubleshooting there are several OSDs that fail. as a Cloud Engineer you are instructed to replace the failed OSD with a new OSD, and they don't want the OSD order to be random.

  • do the task so that all OSDs return to their original state, with 6 consecutive OSDs
  • and also make sure cluster are healthy

WARNING: this lab has problems related to the next lab, trying to skip this lab might cause quite complex problems