Chapter 14. Managing block devices using the Ceph dashboard

Procedure

1. Log in to the dashboard.
2. On the navigation menu, click the Block drop-down menu.
3. Select Images.
4. Click Create.
5. In the Create RBD window, enter the parameters.
6. Optional: Click Advanced and set the parameters.
7. Click Create RBD.

8. Create Block device image.

   Figure 14.1. Create Block device image

   
9. You get a notification that the image was created successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click the Block drop-down menu.
3. Select Images.
4. To create the namespace, in the Namespaces tab, click Create.
5. In the Create Namespace window, select the pool and enter a name for the namespace.

6. Click Create.

   Figure 14.2. Create namespace

   
7. You get a notification that the namespace was created successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click the Block drop-down menu.
3. Select Images.
4. To edit the image, click its row.
5. In the Edit drop-down menu, select Edit.

6. In the Edit RBD window, edit the required parameters and click Edit RBD.

   Figure 14.3. Edit Block device image

   
7. You get a notification that the image was updated successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click the Block drop-down menu.
3. Select Images.
4. To copy the image, click its row.
5. In the Edit drop-down menu, select Copy.

6. In the Copy RBD window, set the required parameters and click Copy RBD.

   Figure 14.4. Copy Block device image

   
7. You get a notification that the image was copied successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images from the drop-down menu.
4. To move the image to trash, click its row.
5. Select Move to Trash in the Edit drop-down.

6. In the Moving an image to trash window, edit the date till which the image needs protection, and then click Move.

   Figure 14.5. Moving images to trash

   
7. You get a notification that the image was moved to trash successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Block:
3. Select Images.
4. In the Trash tab, click Purge Trash.

5. In the Purge Trash window, select the pool, and then click Purge Trash.

   Figure 14.6. Purge trash

   
6. You get a notification that the pools in the trash were purged successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block:
3. Select Images.
4. To restore the image from Trash, in the Trash tab, click its row:
5. Select Restore in the Restore drop-down.

6. In the Restore Image window, enter the new name of the image , and then click Restore.

   Figure 14.7. Restore images from trash

   
7. You get a notification that the image was restored successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Block
3. Select Images.
4. To delete the image, select the row.
5. From the Edit drop-down, select Delete.

6. In the Delete RBD dialog box, click the Yes, I am sure box and then Click Delete RBD to save the settings.

   Figure 14.8. Deleting images

   
7. You get a notification that the image was deleted successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Block
3. Select Images.
4. To delete the namespace, in the Namespaces tab, click its row.
5. Click Delete.

6. In the Delete Namespace dialog box, click the Yes, I am sure box and then Click Delete Namespace to save the settings:

   Figure 14.9. Deleting namespaces

   
7. You get a notification that the namespace was deleted successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To take the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Create in the Create drop-down.

6. In the Create RBD Snapshot dialog, enter the name and click Create RBD Snapshot:

   Figure 14.10. Creating snapshot of images

   
7. You get a notification that the snapshot was created successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To rename the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Rename in the the Rename drop-down.

6. In the Rename RBD Snapshot dialog box, enter the name and click Rename RBD Snapshot:

   Figure 14.11. Renaming snapshot of images

   

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To protect the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Protect in the the Rename drop-down.
6. The State of the snapshot changes from UNPROTECTED to PROTECTED.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To protect the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Clone in the the Rename drop-down.

6. In the Clone RBD window, edit the parameters and click Clone RBD.

   Figure 14.12. Cloning snapshot of images

   
7. You get a notification that the snapshot was cloned successfully. You can search for the cloned image in the Images tab.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To protect the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Copy in the the Rename drop-down menu.

6. In the Copy RBD window, enter the parameters and click the Copy RBD button:

   Figure 14.13. Copying snapshot of images

   
7. You get a notification that the snapshot was copied successfully. You can search for the copied image in the Images tab.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To unprotect the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select UnProtect in the the Rename drop-down.
6. The State of the snapshot changes from PROTECTED to UNPROTECTED.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To rollback the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.
5. Select Rollback in the the Rename drop-down.

6. In the RBD snapshot rollback dialog box, click Rollback.

   Figure 14.14. Rolling back snapshot of images

   

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Select Images.
4. To take the snapshot of the image, in the Images tab, click its row, and then click the Snapshots tab.

5. Select Delete in the the Rename drop-down:

   Figure 14.15. Deleting snapshot of images

   
6. You get a notification that the snapshot was deleted successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.

3. Click Mirroring.

   Figure 14.16. View mirroring of Block devices

   

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Click Mirroring.
4. In the Pools tab, click the peer you want to edit.
5. In the Edit Mode drop-down, select Edit Mode.

6. In the Edit pool mirror mode window, select the mode from the drop-down, and then click Update. Pool is updated successfully.

   Figure 14.17. Editing mode in mirroring

   

1. Log in to the dashboard.
2. From the Navigation menu, click the Block drop-down menu, and click Mirroring.

3. Click Create Bootstrap Token and configure the following in the window:

   Figure 14.18. Create bootstrap token

   
   1. For the provided site name, choose the pool to be mirrored.
   2. For the selected pool, generate a new bootstrap token by clicking Generate.
   3. Click the Copy icon to copy the token to clipboard.
   4. Click Close.

4. Enable pool mirror mode.

   1. Select the pool.
   2. Click Edit Mode.
   3. From the Edit pool mirror mode window, select Image from the drop-down.
   4. Click Update.

1. Log in to the dashboard.
2. From the Navigation menu, click the Block drop-down menu, and click Mirroring.

3. From the Create Bootstrap token drop-down, select Import Bootstrap Token.

   Note

   Ensure that mirroring mode is enabled for the specific pool for which you are importing the bootstrap token.

4. In the Import Bootstrap Token window, choose the direction, and paste the token copied earlier from site A.

   Figure 14.19. Import bootstrap token

   

5. Click Submit.

   The peer is added and the images are mirrored in the cluster at site B.

6. Verify the health of the pool is in OK state.

   • In the Navigation menu, under Block, select Mirroring. The health of the pool is OK.

1. Create an image with Mirroring enabled.

   1. From the Navigation menu, click the Block drop-down menu.
   2. Click Images.
   3. Click Create.

   4. In the Create RBD window, provide the Name, Size and enable Mirroring.

      Note

      You can either choose Journal or Snapshot.

   5. Click Create RBD.

      Figure 14.20. Create mirroring image

      

2. Verify the image is available at both the sites.

   • In the Navigation menu, under Block, select Images. The image in site A is primary while the image in site B is secondary.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Click Mirroring.
4. In the Pools tab, click the peer you want to edit.
5. In the Edit Mode drop-down, select Edit peer.

6. In the Edit pool mirror peer window, edit the parameters, and then click Submit:

   Figure 14.21. Editing peer in mirroring

   
7. You get a notification that the peer was updated successfully.

Procedure

1. Log in to the Dashboard.
2. On the navigation menu, click Block.
3. Click Mirroring.
4. In the Pools tab, click the peer you want to delete.
5. In the Edit Mode drop-down, select Delete peer.

6. In the Delete mirror peer dialog window, Click the Yes, I am sure box and then Click Delete mirror peer to save the settings:

   Figure 14.22. Delete peer in mirroring

   
7. You get a notification that the peer was deleted successfully.