Hitachi Dynamic Link Manager (HDLM) Advanced Software

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Load Balancing | Path Failover and Failback - Hitachi Data Systems

Dynamic Link Manager Advanced

Improve Data Availability, Reliability, Accessibility

Overview

Robust Multipath SAN Connections

Hitachi Dynamic Link Manager Advanced software provides comprehensive path failover and failback to ensure higher data availability, reliability and accessibility. Automatic work load balancing helps to maintain outstanding system performance across all available paths. If one path were to fail, Hitachi Dynamic Link Manager Advanced would automatically switch the I/O to an alternate path. This ensures that an active route to your data is always available.

Hitachi Dynamic Link Manager Advanced provides a solution for organizations overwhelmed by the difficulties of managing multiple storage paths for large numbers of servers. By providing a simple, centralized and integrated storage path management interface it increases administrator efficiencies, minimizes configuration errors and streamlines reporting.

  • Reduces the risk of financial loss from a failed path to critical applications through path failover
  • Achieves a higher level of data availability through automatic failover and failback
  • Allows applications to stay online while you perform maintenance that requires disabling a path
  • Improves system performance by taking all storage I/O requests and distributing the workload across all available paths
  • Monitors the status of online paths with health checks and can place a failed path offline when an error is detected

Enhanced Performance and Nonstop Availability

  • Watch the Hitachi Dynamic Link Manager Advanced online demo, including path failover, failback and load balancing.
    Watch or download the demo

Features and Benefits

Features

Supports Wide Range of Operating Environments

  • Path failover and I/O load balancing for IBM® AIX®, Microsoft Windows, HP-UX, Sun Solaris and Linux operating systems, and supports:
  • Fibre Channel and iSCSI connections
  • Major server clustering products
  • Standard volume management tools
  • Popular host bus adapters (HBAs)
  • Complements Microsoft Windows Multipath I/O (MPIO) environments through added automation, including failback and path load balancing
  • All Hitachi storage systems as well as third-party storage

Fault Tolerant Path Management

  • Enables access to data on all Hitachi storage systems in both direct attached storage (DAS) and SAN environments with path failover and I/O load balancing over multiple HBA cards
  • Lists path information for all paths or for each host, HBA port, storage subsystem and storage port
  • Optimizes application performance by controlling path bandwidth

Group and Event Management

  • Controls access to specific groups of Dynamic Link Manager hosts based on user-defined criteria and allows administrators to create customized management views
  • Enhances troubleshooting capabilities by making it easy to pinpoint the location of path failures
  • Integrates path failure alerts with common enterprise system management platforms

Benefits

Protects Data Availability

  • Reduces the risk of financial loss from a failed path to critical applications through path failover
  • Achieves a higher level of data availability through automatic failover and failback
  • Allows applications to stay online while you perform maintenance that requires the disabling of a path

Optimizes System Performance

  • Improves system performance by taking all storage I/O requests and distributing the workload across all available paths
  • Monitors the status of online paths with health checks and can place a failed path offline when an error is detected
  • Helps enable control of application-specific storage service levels

Improves System Reliability and Reduces Downtime

  • Offers easy switching to and from alternative paths in complex storage networks
  • Helps to ensure service level agreements (SLAs) are met with historical reporting of path availability
  • Provides an easy way to check the health of all SAN paths with summary views

Resources
Specifications

Hardware

  • Pentium III (1GHz or better), strongly recommended Pentium 4 (2.4GHz or better)
  • Memory: 512MB RAM, more recommended
  • Disk Capacity: 1.5GB for Global Link Manager Server + 4GB for database files
  • SVGA (800x600) or higher
  • 100BaseT Ethernet
  • CD-ROM drive (for installation)
  • JRE 1.4.2
  • Internet Explorer 6.0 or later

Supported Operating Systems

  • Microsoft Windows Server 2003*, Service Pack 1 (SP1)*, SP2*
  • Microsoft Windows Server 2003 R2*, SP2*
  • Microsoft Windows XP, SP1, SP2
  • Microsoft Vista
  • VMware ESX Server 3.0.1 (Windows guest running in Virtual Machines)
    *32-bit operating system

Supported Cluster Software

  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows Server 2003 Enterprise Edition**
  • Microsoft Windows Server 2003 Datacenter Edition**
  • Microsoft Windows Server 2003 R2 Enterprise Edition**
  • Microsoft Windows Server 2003 R2 Datacenter Edition**
    **Except for Majority node set

Client Requirements: Supported Operating Systems and Web Browsers

  • Microsoft Windows 2000 SP3 or later
  • Microsoft Windows Server 2003***
  • Microsoft Windows Server 2003 SP2***
  • Microsoft Windows Server 2003 R2***
  • Microsoft Windows XP
  • Microsoft Vista
  • RedHat Enterprise Linux 4.6, 5.2
  • Sun Solaris 9, 10
  • Microsoft Internet Explorer 6.0 or later
  • Mozilla Firefox web browser 3.0 or later (Solaris)
  • Mozilla Firefox 1.5 or later (Red Hat Linux 4.6) and Firefox 3.0 or later (Red Hat Linux 5.2)
    ***32-bit operating system

Hitachi Global Link Manager Support Matrix

  • Hitachi Dynamic Link Manager 5.8 or later (all Hitachi Dynamic Link Manager host operating system platforms)
  • Hitachi Dynamic Link Manager 5.2 through 5.7 (Requires Hitachi Device Manager Software Agent 3.5 or later)
  • Veritas VxVM Dynamic Multipathing (DMP) (Veritas Storage Foundation by Symantec version 5.0 for Solaris)

The system requirements and support matrix listed on this document are subject to change without notice.