SAN storage management insights

Storage expert Marc Farley shares insights about what impact iSCSI will have on management software applications.

SAN storage management insights
Marc Farley

Editor's Note: Following are a few, selected answers from one of searchStorage's own storage networking experts, Marc Farley. Farley is the author of the well-known storage "bible," Building Storage Networks , 2nd edition and president of Teach2Fish, Inc., a consulting firm specializing in IT-and storage-related issues.

In today's Storage Management tip, Marc provides some of his insights on storage management, iSCSI and other related storage networking issues...


Q: What impact will iSCSI have on management software applications? Will data that used to fall under the purview of storage management applications now "revert" back to network management apps? How is all of this data going to be managed?

A: There are three areas to manage in storage networks.

1. The network. This is traditional network management. Although for storage there is an additional "pathing" application component that is considerably different than anything found in IP networks.

2. The block-level storage stuff. This will still be done by volume managers and device virtualization.

3. The file system and data objects. This will still be done by file system and database tools.

So the answer is that there will be three different types of management - just as there are today. When those things can be integrated together remains to be seen, but don't hold your breath. The closest thing is storage resource management (SRM) but I don't believe that covers the network side.


Additional Resources:
* View Marc's recent Live Expert Q&A online event, "A new way of understanding storage networks: Wiring, storing and filing," where he shares the difference between the storing, wiring and filing functions served within a storage area network.

Or, see Marc's presentation in our multimedia online event, "Requirements for path control in large storage networks"

* Find out what Marc Farley had to say about the following questions:
**How do I measure the SAN performance? How do I know whether the network I have configured is efficient enough?

**What is the difference between a simple hard disk and a SCSI hard disk?

** What are the differences between Legato and Veritas?

* View questions and answers from Marc and other of our experts.

This was first published in August 2001

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