Overview

SAN Manager LM Technical Bulletin

I/O Retry Failure When Creating or Modifying the Database

A problem has been found in the I/O retry logic used by SAN Manager LM’s database creation code.

All I/O retry attempts fail before they get sent to a target device. This means that if any I/O operation fails during the database creation process or when the database is being modified, it will not be retried, and the database creation/modification will fail.

Affected Products

This problem exists in SAN Manager LM 1.1 and 1.1.1 for Windows NT.

End User Experience

The end user might experience a failure when trying to create a database mirror set or add mirror set devices to an existing database mirror set. They will notice the creation process proceeding but failing at random points during the process.

Causes and Solutions

The following are possible causes:

•A component of the SAN hardware is unstable.

•There is a hardware problem with the target device.

•Another computer on the SAN caused a LIP (loop initialization process) which interrupted the database creation/modification.

•There is a large amount of traffic on the SAN.

To work around this problem, try to eliminate the source(s) of I/O errors and then retry the database creation/database mirror set update procedure.

SAN Manager LM Technical Bulletin

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Surestore SAN Manager LM Software, Surestore SAN Manager DM Software specifications

HP Surestore SAN Manager DM Software and Surestore SAN Manager LM Software are integral components in the realm of storage area networks (SAN), designed to provide comprehensive management for a variety of storage devices. These software solutions enable organizations to optimize their storage resources, streamline processes, and enhance data accessibility throughout their infrastructures.

One of the main features of HP Surestore SAN Manager DM (Device Management) Software is its capability to facilitate centralized management of diverse storage devices. This includes configuration, monitoring, and troubleshooting capabilities that help IT administrators maintain optimal performance and operational efficiency. The software offers intuitive dashboards and real-time alerts, allowing users to quickly identify and address issues as they arise.

Another key feature of the DM software is its advanced reporting capabilities. Users can generate detailed reports on storage usage, performance metrics, and device health status, providing valuable insights that inform strategic decisions regarding capacity planning and resource allocation. This level of visibility is crucial for organizations looking to ensure their storage infrastructure aligns with evolving business needs.

On the other hand, HP Surestore SAN Manager LM (Lun Management) Software focuses specifically on managing logical unit numbers (LUNs) within the SAN. One of its standout features is the ability to create, resize, and delete LUNs seamlessly, enabling administrators to adjust storage allocations in response to changing workloads. It also supports LUN masking and mapping, enhancing security and ensuring that only authorized hosts can access specific storage resources.

The LM software offers advanced features such as dynamic LUN management, which allows for real-time adjustments without disrupting operations. This ensures that organizations can remain agile and responsive in the face of fluctuating storage demands. Additionally, the LM software integrates smoothly with backup solutions, ensuring that data protection measures are aligned with the management of storage resources.

Both HP Surestore SAN Manager DM and LM Software utilize advanced technologies to deliver high availability and reliability. Features such as data integrity verification and automated failover processes contribute to a robust infrastructure that minimizes downtime and protects against data loss.

Together, these software solutions provide a comprehensive framework for managing storage area networks, offering organizations the tools they need to improve performance, enhance security, and ensure data accessibility. By leveraging HP Surestore SAN Manager DM and LM Software, businesses can better navigate the complexities of modern data management, ultimately fostering greater efficiency and innovation across their operations.