The second repository will become a mirror of the first.

I/O may be distributed across the repositories but actually providing the better performance.

Multiple storage repositories can reduce the overall impact of storage device malfunctioning.

You must allow Oracle to decide where to place guest and virtual disks.

There is a chance that space will be over allocated, resulting in wasted space.

Both repositories must be of same type (NFS, iSCSI or fiber channel).

Turn on HA in the storage pool to create a redundant backup of virtual machines hosted in thatstorage pool.

Use network bonding to create multiple redundant paths to an iSCSI LUN.

Use multipathing to create multiple storage network paths toa SAN LUN.

Use Oracle Clusterware to create multiple paths to a SAN LUN.

Use Oracle Clusterware to create each storage repository on a different storage network.

Oracle must have a vendor response agreement with the virtualization vendor before Oracle will respond to support calls for products running on their virtualization products.

Oracle will provide support for issues that are known to occur on the native OS.

Oracle may request that the problem be reproduced on the native hardware.

Both Oracle and the virtualization vendor must have a joint support process plan in place before Oracle will respond to support calls for products running on the vendor's virtualization products.

Oracle does not support any of its products on any non-Oracle virtualization platform.

/OVS3

/var/ovs/mount/root

/var/ovs/mount/OVSROOT

/OVSROOT

/var/OVS

/opt/ovs

server.log in thesystem log directory.

error.log in the OVM manager bin directory.

admin.log in the xcn log directory

adminserver.log in the web logic server log directory.

diagnostocts.log in the web logic server log directory.

Virtual Disk N

Virtual Disk Size

Hard Drive Type

QoS Enabled

Priority Class

Configure the user name, password and IP address using Oracle VM agent.

Configure the user name, password and IP address using the Oracle VM manager.

Edit the IPMI.conf file on the Oracle VM server to enable automatic power setting.

Enable Wake-ON-LAN in the server BIOS.

Enable automatic power saving in Oracle VM Manager.

NFS repositories are excellent for storing guests' root file systems.

NFS is a more expensive option than iSCSI or SAN fabrics.

OCFS2 must be used as the filesystem format for volumes exposed through NFS.

NFS shares mounted directly in a guest require the DM-NFS driver to be installed on the guest.

NFS is supported for use in RAC only when mounted from the guest (not domO).

Oracle VM's Xen implementation uses a different disk format for virtual machines than open source Xen, so live migration of virtual machines will notwork between the existing Xen implementation and Oracle VM.

Oracle VM employs a layer of technology on top of Xen that enables remote management through Oracle VM Manager or Oracle Enterprise Manager. The existing Xen servers are incapable ofcommunicating in this manner.

Oracle VM uses a forked Xen distribution, so although the version numbers are the same, the behavior of the virtual machines at run time will be different.

Oracle VM uses a highly proprietary protocol format for Live Migration that enables strongencryption. Standard Xen servers will not be able to live migrate to the Oracle VM servers, or vice versa.

/etc/ocfs2/cluster.conf

/etc/sysconfig/ocfs2

/etc/sysconfig/cluster.conf

/etc/sysconfig/o2cb

Selecting which virtual disk will be cloned.

Changing Linux packages installed in the target VM.

A choice of thin cloning, sparse cloning and non-sparse cloning for virtual disk.

Propagating of target virtual machine to multiple servers in one operation.

The assignment of a storage to physical disk.

Propagating of target VM to multiple server pools in one operation.

A standalone server in your environment that monitor the status of file server shares.

The Oracle VM manager server that execute Oracle VM agent transactions.

An Oracle VM server outside of the Oracle VM server pool that might tell you the status of network.

An Oracle VM server in the server pool that execute VM agent transactions on behalf of Oracle VM manager.

An Oracle VM server in the server pool that monitor the status of the Oracle VM manager.

netfront

netback

blkfront

blobk

QEMU

When editing a server pool policy.

When adding a new server to server pool.

When creating a new VM.

When adding a new server storage.

When define the VLAN group.

First the VM files are migrated between the servers, then the memory, then the CPU registers.

First the VM files are migrated between the servers, then the memory.

First the memory is migrated between the servers, and then the CPU registers.

Only memory is migrated.

When you restore a server pool, all the data stored In the Oracle VM Manager database isdeleted, and the data in the server pool master and virtual machine servers is used to restock the database.

When you restore a server pool, all servers are removed from the pool, and the data in the database is removed, restoring the server pool to its initial state.

When you restore a server pool, all the data stored in the server pool master will be deleted, and will be synchronized with the latest information from the Oracle VM Manager database. The server pool master is responsible for updating the individual Oracle VM servers' agent databases.

When you restore a server pool, a signal is sent out to each server in the pool, which responds swith the current state of all of the virtual machines it hosts. This data is used to restore the data in the Oracle VM database.

QEMU emulation is used in dom0, and a netfront driver is used in the guest.

A native device driver is used in dom0, and QEMU emulation is used in the guest.

A netfront driver is used in dom0, and a netback driveris used in the guest.

QEMU emulation is used in dom0, and a native device driver is used in the guest.

Native drivers are used in both dom0 and the guest

You need to define only one policy for your entire OVM environment.

Can be configured inside oneor more DRM (distributed resources management) policy.

Automatically migrate the virtual machine to different servers to conserve power.

Trigger live migration based on a user defined network and CPU threshold.

Applies only two users left a server in a server pool.

Automatically power on an Oracle VM server after a user defined time threshold.