A DHCP server or boot helper system configured to respond

 

to any DHCP boot request containing PXEClient will

 

respond to both Itanium-based servers and industry standard

 

servers. A PXE response suitable for an industry standard

 

server is unlikely to allow an Itanium-based system to boot.

lease-time

How long in seconds the IP address may be used to boot a

 

system. The example value is 300 seconds (5 minutes) but

 

you may need more time if your network is a busy one.

 

Booting on high-traffic networks may take 10 or 15 minutes

 

since the install kernel and install file system must be

 

downloaded. The problem with increasing the lease-time

 

is the possibility of running out of IP addresses to use for

 

booting. If you increase this number, make sure you have

 

enough IP addresses in the pool to accommodate systems

 

that might boot simultaneously.

subnet-mask

The subnet mask used by clients.

addr-pool-start-address

The first IP address for this address pool.

addr-pool-last-address

The last IP address for this address pool.

IMPORTANT: The use of the ncid option is critical because it instructs the DHCP server to exclude the DHCP class-idin the response to the client’s boot request. If a DHCP server responds to a PXE boot request with the DHCP class-idin the response, the booting PXE client attempts to communicate with a PXE proxy server on the same host. Since HP-UX does not supply a PXE proxy server, the boot fails. The ncid option resolves this issue.

With the device pool group added to the /etc/dhcptab file, your HP-UX 11i v2 or 11i v3 Ignite-UX server is now configured to respond to anonymous Itanium-based clients.

IMPORTANT: The server that sends the response to the PXE boot request is the system that the PXE client will attempt to tftp the boot file from. If you are not using an HP-UX system to reply to an Itanium-based PXE request, you must make the required boot files available and current with new releases of Ignite-UX. HP does not provide support for this kind of configuration.

Isolating Ignite-UX from noncontrollable DHCP servers

Once Ignite-UX starts running, a DHCP request will be used to obtain an IP address used for installation or recovery if needed. Ignite-UX can be configured to specify a class-id for this request.

For more information see Appendix B and bootpd(1M).

If you have DHCP servers on your network that you have no control over, it is possible to completely isolate Ignite-UX from them. This is done by adding a class-idto the dhcp_class_id keyword in the install file system. See instl_adm(1M) and instl_adm(4) for additional information.

When the network boot process completes and the install kernel is running, Ignite-UX will use DHCP again to obtain an IP address. This is done because Ignite-UX has no way to determine the IP address used by firmware.

If you are running HP-UX 11i v2 or 11i v3 and have configured a DHCP device group for Itanium-based server PXE requests, you can reuse this device group for isolation purposes. If you added the following into the install file system:

dhcp_class_id="IgniteDHCPDeviceGroup",

you can change the class-idin the DHCP device group that responds to anonymous Itanium–based PXE boot requests to read:

class-id="PXEClient:Arch00002IgniteDHCPDeviceGroup"

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HP UX System Management Software Isolating Ignite-UX from noncontrollable Dhcp servers, Dhcpclassid=IgniteDHCPDeviceGroup
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UX System Management Software specifications

HP-UX System Management Software is a robust suite of tools designed to facilitate the administration and management of HP's Unix-based operating system, HP-UX. As organizations increasingly rely on mission-critical applications, the need for a reliable and efficient management solution becomes paramount. HP-UX provides a comprehensive understanding of system performance, resource utilization, and enterprise-wide configuration, all while maintaining high availability and security.

One of the key features of HP-UX System Management Software is its Advanced System Administrator Toolkit. This toolkit includes a wide array of utilities that streamline daily administrative tasks such as monitoring system performance, managing user accounts, and configuring system settings. Tools such as Glance provide real-time monitoring of system resources, enabling administrators to identify bottlenecks and optimize performance.

The software also boasts an advanced security framework, including features such as Role-Based Access Control (RBAC) and Secure Shell (SSH) for secure data transmission. Security patches and updates can be managed through HP’s Service Pack for HP-UX, which provides a streamlined method for maintaining system integrity and compliance with various regulatory standards.

Another notable aspect is the extensive support for virtualization technologies. HP-UX supports HP’s Integrity Virtual Machines (IVMs) and vPars, allowing administrators to create multiple isolated environments on a single physical server. This not only enhances resource utilization but also improves disaster recovery planning by enabling easier backup and restore processes.

For storage management, HP-UX offers tools that enable easy setup and management of Logical Volume Managers (LVM). This allows simplified disk space allocation and management, ensuring that critical applications have the necessary resources without manual intervention.

Furthermore, HP-UX is designed with compatibility in mind, supporting a wide range of third-party applications and frameworks. Integration with management platforms like HP System Insight Manager enhances the ability to monitor and manage systems from a centralized perspective, providing alerts and reports that help in proactive decision-making.

In summary, HP-UX System Management Software delivers a streamlined approach to system administration, focusing on performance, security, and ease of management. Its advanced features, combined with an emphasis on virtualization and storage management, make it a powerful tool for organizations seeking reliability and efficiency in their Unix-based environments. As businesses continue to evolve, tools like HP-UX will remain crucial for ensuring consistent performance and operational excellence.
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