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Appendix A: Expanding the stamp
When customers initially purchase the Dell Hybrid Cloud System for Microsoft, the solution may be configured with fewer than the maximum number of compute nodes, storage JBODs, network switches, or backup hosts. The following figure outlines the components that may be ordered to expand the scale and/or functionality of the solution after it has already been deployed. This section outlines procedures for adding these components and integrating them into the solution.
Figure 53. Expansion of Dell Hybrid Cloud System for Microsoft
Topics:
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Adding another server to backup infrastructure
Compute expansion workflow
The number of compute nodes in the solution can scale from a single chassis (with four PowerEdge C6320 servers) up to four chassis (for a total of sixteen servers). The unit of scalability is a complete chassis, so nodes must be added four at a time. The chassis must go through the Dell Integration Center and be pre-configured and imaged in the same manner as the original nodes.
134 Appendix A: Expanding the stamp
However, if a significant amount of time has passed between the original order and the expansion, it is likely that image versions and/or firmware versions may be different. Before beginning the expansion deployment, it will then be necessary to bring the existing environment up to a solution release level that is compatible with the images provided on the expansion chassis. The Patch and Update (P&U) process can be used to update the solution stack.
For more information about P&U, go to support.dell.com>Servers, Storage and Networking >Engineered Solutions >Dell Hybrid Cloud
System for Microsoft . P&U packages and documentation will be released to that site when available.
NOTE: Because they require imaging before they are delivered, compute nodes and backup nodes are shipped from the Dell
Integration Centers. All other components ship directly to the customer without any customization.
Physical installation
Install the compute chassis into the rack unit above the upper-most chassis that is currently deployed in the solution. Run the power cables from the chassis to the PDU, and connect the 10GbE ports on each C6320 server to the appropriate ports on the Dell Networking S4048-
ON switches.
Deploying compute expansion nodes
The Deployment user interface remains installed on the console VM (< prefix >CON01) and is used to start the DeployDriver for compute expansion. Consult with your Dell technical support representative to find out how to deploy compute expansion nodes for your implementation of the Dell Hybrid Cloud System for Microsoft.
NOTE: Compute expansion is implemented by Dell Services.
Adding another server to backup infrastructure
You can add DPM backup servers to an existing Dell Hybrid Cloud System for Microsoft backup infrastructure. Deployment of the backup servers is implemented by Dell Services. You can expand up to three backup servers.
After you run the BackupDeployDriver script, run the Complete-BackupDeployment runbook. You do not have to run the Protect-
ManagementComponents runbook.
Then, you may have to run P&U to ensure that the latest updates are applied, and that the stamp and backup infrastructure are at the same version.
Use the following guidance to determine if and when a P&U run is required.
Table 40. Conditions for P&U run
Conditions
Stamp is at same version as the new backup host.
Stamp has a later version than the new backup host.
New backup host has a later version than the stamp.
P&U run required?
A P&U run is not required after you add the backup host.
Run a required P&U after you add the backup host.
Before you add the backup host, run a required P&U to update the stamp to the same version as the new host.
To check the Microsoft update version on a new node, open the file C:\Program Files\Microsoft Cloud Solutions\Version.xml on the host.
To check the Microsoft update version on the stamp, see
How to check which update package is installed .
Appendix A: Expanding the stamp 135
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