How to Delete a VM Disk Reference Using the BOSH and Director Console

Products

• Operations Manager

Issue/Introduction

This article will explain how to fix the MySQL instance. We will delete the disk reference and replace it with a new blank one. 

 

Environment

Resolution

This was the process followed: 

• Changed BOSH deployment to p-mysql and ran bosh cck and deleted the disk reference
• Recorded the disk-id that BOSH is complaining about
• Connected via SSH into the BOSH director (ssh vcap@<director-IP> password in the Operations Manager Director tile credentials section under VM Credentials)
• Start the director console.  The method to access the director console depends on your version of Operations Manager
  • Operations Manager 2.1 or earlier
    • /var/vcap/jobs/director/bin/director_ctl console
  • Operations Manager 2.2 or later
    • /var/vcap/jobs/director/bin/console
• Ran Bosh::Director::Models::PersistentDisk.where(disk_cid:"blah").all (Blah is swapped with the disk-id previously recorded)
• Ran Bosh::Director::Models::PersistentDisk.where(disk_cid:"blah").first.update(active: false)
• Ran Bosh::Director::Models::PersistentDisk.where(disk_cid:"blah").instance.persistent_disks
• Ran Bosh::Director::Models::PersistentDisk.where(disk_cid:"blah").first.instance.persistent_disks
• Ran Bosh::Director::Models::PersistentDisk.where(disk_cid:"blah").first.delete
• Exited out of the SSH session
• Ran bosh cck and it passed
• Ran bosh deploy (with mysql targeted as deploy)
• Ran bosh instances --details & bosh vms --ps and verified all was good