Premium Content

Access "Guidelines to troubleshooting your SAN."

Published: 16 Oct 2012

Yes, you can navigate the maze of cables and devices and find out what ails your SAN. The key is to start at the right place and proceed systematically, ruling out one cause at a time Troubleshooting storage area networks (SANs) is daunting. Never before have we had so many network devices between our application host and storage. Until a few years ago, all we had was an HBA and a disk controller with a thick, cumbersome cable in the middle. Back then, troubleshooting your storage connection was a less formidable task. The Fibre Channel protocol model FC4 Protocol mapping for upper layer protocols FC3 Common services (e.g., name, alias, time servers) FC2 Framing and flow control FC1 Encoding/decoding of data character and bits FC0 Physical signaling interface Now, that thick cable has been replaced by a myriad of interconnects enabling multiple data paths between hosts and storage. And just as when we decoupled user terminals from their mainframe controllers, there's quite a bit that can go wrong with a hosts' ability to gain access to its storage in a SAN. ... Access >>>

Access TechTarget
Premium Content for Free.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

What's Inside

Features

More Premium Content Accessible For Free

  • Big data storage challenges: Speed, capacity and HDFS integration
    big_data_hadoop.png
    E-Handbook

    Big data infrastructure and analytics are some of the hottest technology topics today, and it can sometimes seem impossible to dissect and digest all...

  • Moving target: Endpoint backup
    storage_0814.jpg
    E-Zine

    Mobile workers are now accessing, creating and modifying data on ultra-portable devices such as smartphones, tablets and phablets. Most companies ...

  • A lesson in flash caching
    storage_0714.png
    E-Zine

    Solid-state storage is proliferating as a replacement for hard disk drives, where it offers a quick shift into the fast lane of storage processing. ...