HP-UX diagnosing and debugging

Simple network debugging

If network boot is used on a local subnet and the Ignite-UX server is not found, check these items:

•Verify the client is on the same subnet as the Ignite-UX server or boot helper.

•Investigate instl_bootd errors in /var/adm/syslog/syslog.log.

•In the /var/adm/inetd.sec file, ensure the service instl_boots exists, and that the IP address 0.0.0.0 is allowed. (Normally, all addresses are allowed via 0.0.0.0.) The entry must look like:

instl_boots allow 0.0.0.0

•If /etc/services comes from NIS, make sure the NIS server has instl_boot* entries.

Logging to syslog.log

The bootpd and tftpd daemons have the ability to log requests and responses. The /etc/ inetd.conf file may be modified to enable logging. The bootpd -doption and tftpd -loption control logging. For example:

#tftp dgram udp wait root /usr/lbin/tftpd tftpd \ -l /opt/ignite /var/opt/ignite

#bootps dgram udp wait root /usr/lbin/bootpd bootpd -d 9

The daemons log to the HP-UX syslog file located at /var/adm/syslog/syslog.log.

NOTE: Logging should normally be disabled since it can consume a significant amount of disk space.

If the boot configuration includes multiple boot servers (for bootp relay, for example) it is often useful to enable logging on all servers.

Using bootpquery

To save time when configuring an HP-UX system boot, the bootpquery command may be used to simulate a network boot request by requesting bootpd to indicate how it would respond to boot requests for a specific MAC address. This is normally much faster and simpler than attempting to boot using a real client system.

To use bootpquery, add the ba option to the appropriate entries in the /etc/bootptab file. Without this option, bootpd will send responses only to the client system making the boot request. The ba option requests the response be broadcast on the subnet, so any system is able to see the response, including the system where you are using bootpquery. For more information, see bootpquery(1M).

NOTE: The ba option must be removed once testing is completed.

The bootpquery output includes valuable debug information:

#bootpquery 0011855F549E

Received BOOTREPLY from hpignite.xyzco.com (10.1.1.11)

Hardware Address:	00:11:85:5f:54:9e
Hardware Type:	Ethernet
IP Address:	10.1.1.110
Boot file:	/opt/ignite/boot/nbp.efi
RFC 1048 Vendor Information:
Subnet Mask:	255.255.255.0
Gateway:	10.1.1.1
Bootfile Size:	24576 512 byte blocks

Diagnosing network boot issues 29

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.

HP UX System Management Software manual HP-UX diagnosing and debugging, Simple network debugging

Models: UX System Management Software