Overview of Cisco UCS Manager
This chapter includes the following sections:
- About Cisco UCS Manager
- Tasks You Can Perform in Cisco UCS Manager
- Tasks You Cannot Perform in Cisco UCS Manager
- Cisco UCS Manager in a High Availability Environment
About Cisco UCS Manager
Cisco UCS Manager is the management system for all components in a Cisco UCS instance. Cisco UCS Manager runs within the fabric interconnect. You can use any of the interfaces available with this management service to access, configure, administer, and monitor the network and server resources for all chassis connected to the fabric interconnect.
Multiple Management Interfaces
Cisco UCS Manager includes the following interfaces you can use to manage a Cisco UCS instance:
Almost all tasks can be performed in any of the interfaces, and the results of tasks performed in one interface are automatically displayed in another.
However, you cannot do the following:
Centralized Management
Cisco UCS Manager centralizes the management of resources and devices, rather than using multiple management points. This centralized management includes management of the following devices in a Cisco UCS instance:
Support for Virtual and Physical Servers
Cisco UCS Manager abstracts server state information—including server identity, I/O configuration, MAC addresses and World Wide Names, firmware revision, and network profiles—into a service profile. You can apply the service profile to any server resource in the system, providing the same flexibility and support to physical servers, virtual servers, and virtual machines connected to a virtual device provided by a VIC adapter.
Role-Based Administration and Multi-Tenancy Support
Cisco UCS Manager supports flexibly defined roles so that data centers can use the same best practices with which they manage discrete servers, storage, and networks to operate a Cisco UCS instance. You can create user roles with privileges that reflect user responsibilities in the data center. For example, you can create the following:
- Server administrator roles with control over server-related configurations.
- Storage administrator roles with control over tasks related to the SAN.
- Network administrator roles with control over tasks related to the LAN.
Cisco UCS is multi-tenancy ready, exposing primitives that allow systems management software using the API to get controlled access to Cisco UCS resources. In a multi-tenancy environment, Cisco UCS Manager enables you to create locales for user roles that can limit the scope of a user to a particular organization.
Tasks You Can Perform in Cisco UCS Manager
You can use Cisco UCS Manager to perform management tasks for all physical and virtual devices within a Cisco UCS instance.
Cisco UCS Hardware Management
You can use Cisco UCS Manager to manage all hardware within a Cisco UCS instance, including the following:
Cisco UCS Resource Management
You can use Cisco UCS Manager to create and manage all resources within a Cisco UCS instance, including the following:
Server Administration in a Cisco UCS Instance
A server administrator can use Cisco UCS Manager to perform server management tasks within a Cisco UCS instance, including the following:
- Create server pools and policies related to those pools, such as qualification policies
- Create policies for the servers, such as discovery policies, scrub policies, and IPMI policies
- Create service profiles and, if desired, service profile templates
- Apply service profiles to servers
- Monitor faults, alarms, and the status of equipment
Network Administration in a Cisco UCS Instance
A network administrator can use Cisco UCS Manager to perform tasks required to create LAN configuration for a Cisco UCS instance, including the following:
Storage Administration in a Cisco UCS Instance
A storage administrator can use Cisco UCS Manager to perform tasks required to create SAN configuration for a Cisco UCS instance, including the following:
Tasks You Cannot Perform in Cisco UCS Manager
You cannot use Cisco UCS Manager to perform certain system management tasks that are not specifically related to device management within a Cisco UCS instance
No Cross-System Management
You cannot use Cisco UCS Manager to manage systems or devices that are outside the Cisco UCS instance where Cisco UCS Manager is located. For example, you cannot manage heterogeneous environments, such as non-Cisco UCS x86 systems, SPARC systems, or PowerPC systems.
No Operating System or Application Provisioning or Management
Cisco UCS Manager provisions servers and, as a result, exists below the operating system on a server. Therefore, you cannot use it to provision or manage operating systems or applications on servers. For example, you cannot do the following:
- Deploy an OS, such as Windows or Linux
- Deploy patches for software, such as an OS or an application
- Install base software components, such as anti-virus software, monitoring agents, or backup clients
- Install software applications, such as databases, application server software, or web servers
- Perform operator actions, including restarting an Oracle database, restarting printer queues, or handling non-Cisco UCS user accounts
- Configure or manage external storage on the SAN or NAS storage
Cisco UCS Manager in a High Availability Environment
In a high availability environment with two fabric interconnects, you can run a separate instance of Cisco UCS Manager on each fabric interconnect. The Cisco UCS Manager on the primary fabric interconnect acts as the primary management instance, and the Cisco UCS Manager on the other fabric interconnect is the subordinate management instance.
The two instances of Cisco UCS Manager communicate across a private network between the L1 and L2 Ethernet ports on the fabric interconnects. Configuration and status information is communicated across this private network to ensure that all management information is replicated. This ongoing communication ensures that the management information for Cisco UCS persists even if the primary fabric interconnect fails. In addition, the "floating" management IP address that runs on the primary Cisco UCS Manager ensures a smooth transition in the event of a failover to the subordinate fabric interconnect.
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