Dell EMC PowerProtect DDVE in VMware Cloud 7.8 Installation and Administration Guide

Recovering the DDVE system

The system recovery procedure recovers a DDVE instance from failure of the head unit, NVRAM disk, metadata disks, or any combinations of these components. The head unit is the DDVE root disk.

1. Create instance B with the same configuration as instance A. It must include the same memory size, maximum capacity, and metadata disk capacity. The instance type can be a new generation type that the DDOS version supports.
2. Enable object-store.

   # storage object-store enable
   Object-store is enabled.
   

3. Set object-store profile:
   1. Set the passphrase to match the system A passphrase. Otherwise, the recovery fails.
   2. Set the S3 bucket name the same as system A.

      # storage object-store profile set
      A passphrase needs to be set on the system.
      Enter new passphrase: <enter-passphrase-string-meeting-requirements>
      Re-enter new passphrase: <re-enter-passphrase-string>
      Passphrases matched.
      The passphrase is set
      DDVE is running in AWS. Role-based access will be used to access s3.
              Enter the bucket name: <name-of-the-bucket>
              Object-store endpoint needs the Baltimore CyberTrust Root certificate to be imported.
              Do you want to import that certificate with below fingerprint?
              D4:DE:20:D0:5E:66:FC:53:FE:1A:50:88:2C:78:DB:28:52:CA:E4:74  (yes|no) [yes]:
      
              Profile is set.
      

   3. Follow the remaining CLI prompts.
4. Add metadata disks to the active tier to match or exceed the capacity of system A.

   # storage add dev3
   Checking storage requirements...done
   Adding dev3 to the active tier...done
   Updating system information...done
   dev3 successfully added to the active tier.
   

5. Run system recovery precheck.

   # system recovery precheck from object-store
   Recovery precheck passed. Use start command to start the recovery.
   

6. Run the recovery.

   # system recovery start from object-store
   System recovery has started. Use status command to check the status.
   

7. Check the recovery status.

   # system recovery status
   System recovery is running: stage 2 of 6 (attaching object-store)

   NOTE The system reboots during the recovery process.
8. After the recovery process finishes, check the status of the file system.

   # filesys status
   The filesystem is enabled and running.