Inter Switch Link (ISL) Trunking can dramatically improve the performance, manageability, and reliability for business-critical storage applications. By aggregating up to four ISLs into a single logical 8 Gb/s trunk group, this feature supports efficient high-speed communications throughout Storage Area Networks (SANs). By optimizing available switch resources, ISL Trunking decreases congestion. In addition, ISL Trunking reduces administrative workload since ISLs can be managed as a single entity rather than individually. Moreover, ISL Trunking can significantly increase data availability: even if an individual ISL failure occurs, I/O can continue at a reduced bandwidth as long as at least one ISL in the trunk group remains available. Together, these capabilities give organizations a powerful and flexible tool to extract the greatest performance and value from their SAN investments.
The material included in this document is in DRAFT form and is provided 'as is' without warranty of any kind. IBM is not responsible for the accuracy or completeness of the material, and may update the document at any time. The final, published document may not include any, or all, of the material included herein. Client assumes all risks associated with Client's use of this document.