Oracle VM: Oracle VM 2.x Technical FAQ
(Doc ID 467664.1)
Last updated on MARCH 29, 2022
Applies to:
Oracle Cloud Infrastructure - Database Service - Version N/A and laterOracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Linux x86-64
Linux x86
Purpose
This document provides quick answers to common questions about Oracle VM from technical perspective.
Questions and Answers
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In this Document
| Purpose |
| Questions and Answers |
| What happens to Oracle VM guest VMs if the host goes down? Will guests be started automatically on another host within the server pool? |
| If there is only one Server Pool Master server or Utility Server in a Server Pool, what happens when one of these fails? (Single point of failure) |
| How is memory allocated in Oracle VM. Is it possible to over allocate like in VMware, or should the total allocated to the guests be less than memory on host? |
| Is it possible to take a backup of guest VMs while they are running? |
| With paravirtualization will all guests be blocked if one guest hangs? (Lack of isolation with paravirtualization) |
| Is cloning only possible with the guest shutdown? |
| Is there any way to reserve resources to high priority (production) guests in one pool? (Resource management) |
| Is it possible to take snapshots while quest is running? Allowing the VM to go back to this point in time? |
| Can VM guest have more than one NIC in different mode (bridge & shared)? |
| Does VM server (host) support iSCSI and/or utilizing NAS for guest images? |
| Can VM guest be configured as PXE boot client? |
| What is the difference between 32-bit and 64-bit Oracle VM Server? |
| Is Failover Supported? |
| Is it possible to use external storage for guest OS'es? What is supported? |
| How is memory allocated / shared / coordinated among guest OSes? |
| How is CPU capacity allocated to Virtual Machines? |
| Is hard partitioning (CPU pinning) available? |
| Are the actual number of CPUs that are available to the VM visible from within the VM? |
| Are the Grid Control agents supported in virtual machines? |
| If there are more than one server in a server pool, do they have to be identical? |
| If the servers are not identical would Live Migration be possible? |
| References |