Changing Hardware on Nodes in Dynamic Tiers
Intended for use with Cassatt Active Response V5.0.
After nodes are discovered and inventoried in Cassatt Active Response, you may need to make changes to the hardware: adding memory, changing a motherboard, adding a new NIC, changing a disk. This article describes how to make changes to hardware in the Cassatt Active Response utility computing environment.
For most physical hardware changes in the Cassatt Active Response environment, you simply make the changes and move the node from the maintenance pool back to the discovered pool. Because Cassatt Active Response uses inventory information to determine whether an application node meets a tier's hardware requirements, you'll want to reinventory the node after you update the hardware.
The following types of hardware changes can be made by simply moving the nodes to the discovered pool and allowing reinventory:
- Number of CPUs
- CPU speed
- RAM
- Disk size
- HBA
- Power controllers
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The following table lists hardware changes that require you to delete the node from Cassatt Active Response before making changes.
If you are... |
Do this... |
Changing a motherboard, adding a new NIC or changing its boot order |
- Delete the node in the Controller
- Make the hardware changes.
- Power on the node.
- Allow Cassatt Active Response to rediscover and reinventory the node (or manually add it via the Controller).
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| Resetting the switch on the IBM BCMM |
If you reset the switch on the IBM BCMM, inventory will fail because you've changed the node's NIC connectivity by resetting the switch. Delete the nodes in the Bladecenter as described in the procedures above, and let Cassatt Active Response rediscover and reinventory them. |
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