This bug was initially created as a copy of Bug #2160803 Description of problem: Need the procedure to replace a faulty OSD DB/WAL device on RHCS 4 Version-Release number of selected component (if applicable): RHCS 4.x How reproducible: Always on a scenario when a DB or WAL device fails in a non-collocated OSD scenario Steps to Reproduce: 1. Setup a RHCS 4.x cluster with non-collocated OSD scenario 2. Fail one of the DB or WAL device 3. Replace the underlying physical disk Actual results: There is no documented procedure available in our official doc Expected results: There should be step by step procedure to replace the DB/WAL device which customer can follow during their day-2 operations