Red_Hat_Enterprise_Linux 6 Hypervisor_Deployment

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Procedure 5.9. Register with Red Hat Network
1. Authentication
Enter your Red Hat Network username in the Login field.
Enter your Red Hat Network password in the Password field.
2. Profile Name
Enter the profile name to be used for the system in the Profile Name field. This is the name
that the system will appear under when viewed via the Red Hat Network.
3. Update Source
Virtual machines running on the hypervisor may need to consume Red Hat Enterprise Linux
virtualization entitlements. Where this is the case the hypervisor must be registered to Red Hat
Network or, if available, either a Satellite installation or a Subscription Asset Manager. The
hypervisor can connect to these services via a HTTP proxy where one is in use. Proxy
configuration is described in Step 4.
A. To Connect Directly to RHN
Select the RHN option and press Space to toggle it to enabled. The URL and CA values do not
need to be provided.
Example 5.8. Red Hat Network Configuration
[*] RHN [ ] Satellite [ ] Subscription Asset Manager
URL: ________________________________________
CA : ________________________________________
B. To Connect via Satellite
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a. Select the Satellite option and press Space to toggle it to enabled.
b. Enter the URL of the Satellite server in the URL field.
c. Enter the URL of the Certificate Authority for the Satellite server in the CA field.
Example 5.9. Satellite Configuration
[ ] RHN [*] Satellite [ ] Subscription Asset Manager
URL: https://your-satellite.example.com
CA : https://your-satellite.example.com/pub/RHN-ORG-TRUSTED-SSL-CERT
C. To Connect via Subscription Asset Manager
a. Select the Subscription Asset Manager option and press Space to toggle it to
enabled.
b. Enter the URL of the Subscription Asset Manager server in the URL field.
c. Enter the URL of the Certificate Authority for the Subscription Asset Manager server in
the CA field.
Example 5.10. Subscription Asset Manager Configuration
[ ] RHN [ ] Satellite [*] Subscription Asset Manager
URL: https://subscription-asset-manager.example.com
CA : https://subscription-asset-manager.example.com/pub/RHN-ORG-
TRUSTED-SSL-CERT
4. HTTP Proxy
Where a HTTP proxy is in use the details to connect to it must be provided. To connect to the Red
Hat Network or a Satellite server via a proxy you must enter:
the proxy Server's network address,
the Port to connect to the proxy on, and
optionally, the Username and Password to use to connect to the proxy.
In environments where a HTTP proxy is not in use, it is safe to ignore this step.
Example 5.11. HTTP Proxy Configuration
HTTP Proxy
Server: proxy.example.com__ Port: 80_
Username: puser________ Password: ******_______
5. Save Configuration
To save the configuration the user must select and press Enter.
The Red Hat Network configuration has been updated.
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Red Hat Enterprise Linux 6 Hypervisor Deployment Guide
Chapter 6. Upgrading Red Hat Enterprise Virtualization
Hypervisors
Red Hat Enterprise Virtualization Hypervisors can be updated to get the latest features, bug fixes and
security patches.
6.1. Upgrading a Hypervisor with the Manager
You can upgrade and reinstall a Red Hat Enterprise Virtualization Hypervisor host from an ISO image
stored on the Red Hat Enterprise Virtualization Manager. Upgrading and reinstalling means that you are
stopping and restarting the host. Virtual machines are automatically migrated to a different host, however
it is recommended that the upgrade is performed at a time when usage of the system is at its lowest.
Ensure that the cluster contains more than one host before performing an upgrade.
It is recommended that administrators update Red Hat Enterprise Virtualization Hypervisors regularly.
Important bug fixes and security updates are included in updates. Hypervisors which are not up to date
may be a security risk.
Warning
Upgrading Hypervisor hosts involves shutting down and deactivating virtual machines, and
restarting the physical server. If any virtual machines are running on the Hypervisor, all data and
configuration details may be destroyed if they are not shut down. Upgrading Hypervisors must be
carefully planned and executed with care and consideration.
Prerequisites
Before upgrading a Hypervisor:
1. Download the latest Red Hat Enterprise Virtualization Hypervisor package from Red Hat Network.
It is available at https://rhn.redhat.com/rhn/channels/PackageList.do?cid=12564. Install the
package on the Red Hat Enterprise Virtualization Manager server.
Important
Ensure that the cluster contains more than one host before performing an upgrade. Do not
attempt to re-install or upgrade all the hosts at the same time, as one host must remain available
to perform Storage Pool Manager (SPM) tasks.
Procedure 6.1. Upgrading a Red Hat Enterprise Virtualization Hypervisor
1. Click the Hosts tab. A list of hosts displays. Select the host that you intend to upgrade.
If the host is not displayed, or the list of hosts is too long to filter visually, perform a search to
locate the host.
2. On the Details pane, click the General Tab.
An Alert Message indicates that a new version of the Red Hat Enterprise Virtualization Hypervisor
is available. The Upgrade link is disabled if the host is has a status of Up. A tooltip directs you to
switch to maintenance mode to enable upgrade.
3. Select the host and click the Maintenance button. This will cause any virtual machines running
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Chapter 6. Upgrading Red Hat Enterprise Virtualization Hypervisors
on the host to be migrated to other hosts. If the host is the SPM, this function will be moved to
another host. The status of the host changes as it enters maintenance mode. When the host
status is Maintenance, the message in the general tab changes, providing you with a link which
when clicked will re-install or upgrade the host.
4. Click the link. The Install Host dialog displays.
5. Select the appropriate file from the list of available ISOs to upgrade the host. This is usually
rhev-hypervisor.iso. [ Pobierz całość w formacie PDF ]