Deployment
About deployment
Server deployment is the process of installing an operating system on the server and configuring it for use. Conventional
server deployment tools run on the target server using an in-memory operating system called service OS. The service OS
typically matches the operating system to be deployed on the target server. The deployment tool boots the service OS,
then the service OS sets the storage layout, installs the operating system software, and configures the operating system
settings. Once the configuration is completed, the server reboots and runs the deployed operating system.
Image Streamer for OS deployment
The deployment using Image Streamer starts with a block-for-block copy of the Golden Image to create an OS volume.
This copy is created in less than 5 seconds irrespective of the OS volume size. Once the OS volume is created, the Plan
Scripts run in a contained environment to personalize the OS volume for the target server. During the execution of Plan
Scripts, the
custom attributes
are replaced with their values.
NOTE: Since the contained environment is unrelated to the deployed operating system, personalization can be complex.
Hence, it is important to consider strategies that reduce the complexity and efforts for customizing each compute module.
A simple partition layout and configuration for deployment is useful to reduce the complexity of personalizing each server.
NOTE: Do not reduce the iSCSI timeout on servers deployed using Image Streamer.
OS volumes and Image Streamer deployment
HPE Synergy Image Streamer creates OS volumes as a result of the deployment process. An OS volume is associated with
an HPE OneView server profile and can be assigned to a physical server as needed. Image Streamer preserves OS volumes
whenever possible when server profiles are assigned to physical servers, unassigned from the server hardware, and moved
between servers. An OS volume can be retained, deleted, or regenerated based on the actions performed on server
profiles and logical enclosures.
OS volumes status scenarios
Scenario
OS volume status
A server profile is assigned to or unassigned from physical
server hardware
OS volume is retained
A server profile is assigned to a logical enclosure that is
moved to a different enclosure group
OS volume is retained
A server profile is unassigned and the corresponding
logical enclosure is subsequently deleted
OS volume is deleted
A server profile is assigned to a server hardware that
cannot access the OS volume since it is in a different logical
enclosure.
OS volume is deleted and regenerated from the OS
Deployment Plan
Server Hardware Type
of a server profile is
modified
OS volume is deleted and regenerated from the OS
Deployment Plan
Deployment
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