LDOMS:
A logical domain is a discrete logical grouping with its own operating system, resources, and identity within a single computer system. Each logical domain can be created, des-troyed, reconfigured, and rebooted independently, without requiring a power cycle of the server.
Control domain:
Creates and manages other logical domain and services by communicating with the hypervisor.
Service domain:
Provides services to other logical domains, such as a virtual network switch or a virtual disk service.
I/O domain:
Has direct ownership of and direct access to physical I/O devices, such as a network card in a PCI EXPRESS controller. Shares the devices to other domains in the form of virtual devices when the I/O domain is also a service domain. The number of I/O domains you can have is dependent on your platform architecture.
For example,
if you are using a Sun UltraSPARC T1 processor, you can have a maximum of two I/O domains, one of which must also be the control domain.
Guest domain
Uses services from the I/O and service domains and is managed by the control domain.
NOTE:
WE can use the Logical Domains Manager to establish dependency relationships between domains.
Master domain:
A domain that has one or more domains that depend on it.
master domain specifies a failure policy to be enacted by its slave domains when the master domain fails.
depending on the master domain’s failure policy, a slave can be left as-is, panicked, rebooted, or stopped when the master domain fails.
Slave domain:
A domain that depends on another domain. A domain can specify up to four master domains that indictate the failure policy to enact when one or more of the master Following are the supported
what is hypervisor
• The hypervisor is the layer between the operating system and hardware.
• The hypervisor implements a stable sun4v interface. The operating system makes calls to the hypervisor, and therefore, does not need to know intimate details about the hardware, even if the platform changes.
• The hypervisor is very thin; it exists only to support the operating system for hardware-specific functions, making it small and simple, which assists in stability. • The hypervisor creates a virtual machine allowing the system to be partitioned by exposing some of the resources to a specific partition and hiding others.
A logical domain is a discrete logical grouping with its own operating system, resources, and identity within a single computer system. Each logical domain can be created, des-troyed, reconfigured, and rebooted independently, without requiring a power cycle of the server.
Control domain:
Creates and manages other logical domain and services by communicating with the hypervisor.
Service domain:
Provides services to other logical domains, such as a virtual network switch or a virtual disk service.
I/O domain:
Has direct ownership of and direct access to physical I/O devices, such as a network card in a PCI EXPRESS controller. Shares the devices to other domains in the form of virtual devices when the I/O domain is also a service domain. The number of I/O domains you can have is dependent on your platform architecture.
For example,
if you are using a Sun UltraSPARC T1 processor, you can have a maximum of two I/O domains, one of which must also be the control domain.
Guest domain
Uses services from the I/O and service domains and is managed by the control domain.
NOTE:
WE can use the Logical Domains Manager to establish dependency relationships between domains.
Master domain:
A domain that has one or more domains that depend on it.
master domain specifies a failure policy to be enacted by its slave domains when the master domain fails.
depending on the master domain’s failure policy, a slave can be left as-is, panicked, rebooted, or stopped when the master domain fails.
Slave domain:
A domain that depends on another domain. A domain can specify up to four master domains that indictate the failure policy to enact when one or more of the master Following are the supported
what is hypervisor
• The hypervisor is the layer between the operating system and hardware.
• The hypervisor implements a stable sun4v interface. The operating system makes calls to the hypervisor, and therefore, does not need to know intimate details about the hardware, even if the platform changes.
• The hypervisor is very thin; it exists only to support the operating system for hardware-specific functions, making it small and simple, which assists in stability. • The hypervisor creates a virtual machine allowing the system to be partitioned by exposing some of the resources to a specific partition and hiding others.
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