Taking offline one or more CloudBoot compute resources

Question

How can I take offline one or more CloudBoot compute resources?

Answer

You can take offline one or more CloudBoot compute resources either by rebalancing or by degrading VDisks.

To make a compute resource offline by rebalancing:

1. Make sure all disks are not degraded.
2. Go to your Control Panel > Integrated Storage > Nodes.
3. On the page that loads, filter by compute resource.
4. Choose the first node and click the Identifier.
5. Click Show Disks and choose the required disk.
6. Rebalance a disk onto another compute resource.
7. Repeat for all remaining disks on the nodes of this compute resource.

To make a compute resource offline by degrading disks:

1. Make sure all disks are not degraded.
2. Ensure that the VDisks have sufficient redundancy (including datastore configuration having 2 replicas and more, and compute resource redundancy). The VDisks should not have more than 1 replica on the same compute resource.
3. Migrate all VSs from first compute resource elsewhere on the cloud.
4. Power off the compute resource. Ensure to perform the maintenance prior to PXE booting.
5. Reboot empty compute resource.
6. Check diagnostics page to make sure all nodes are active (Integrated Storage > Compute Zones > Diagnostics).
7. Do a Repair All on the degraded VDisks:
   1. Click the Integrated Storage menu, and then the label of a data store to show the virtual disks in that store.
   2. Click the disk label. 
   3. On the screen that appears, select the Repair option next to the Consistency field. Note that only one VDisk can be repaired at a time.
   4. When the disk is successfully repaired, the consistency value will be changed from the "Degraded" to "Fully synced'.
   5. Once the content has been re-balanced, the disk will display a green icon again to indicate that all content is fully up to date.