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Where the Cloud Touches Down: Simplifying Data Center Infrastructure Management

Thursday, July 25, 2013
10:00 AM PT/1:00 PM ET

In most data centers, DCIM rests on a shaky foundation of manual record keeping and scattered documentation. OpManager replaces data center documentation with a single repository for data, QRCodes for asset tracking, accurate 3D mapping of asset locations, and a configuration management database (CMDB). In this webcast, sponsored by ManageEngine, you will see how a real-world datacenter mapping stored in racktables gets imported into OpManager, which then provides a 3D visualization of where assets actually are. You'll also see how the QR Code generator helps you make the link between real assets and the monitoring world, and how the layered CMDB provides a single point of view for all your configuration data.

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A Network Computing Webinar:
SDN First Steps

Thursday, August 8, 2013
11:00 AM PT / 2:00 PM ET

This webinar will help attendees understand the overall concept of SDN and its benefits, describe the different conceptual approaches to SDN, and examine the various technologies, both proprietary and open source, that are emerging. It will also help users decide whether SDN makes sense in their environment, and outline the first steps IT can take for testing SDN technologies.

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How-To: Plan an iSCSI SAN

Although putting together a production-ready iSCSI SAN isn't as easy as you'd think, it's not rocket science. With proper planning and a pair of good switches, you can build an enterprise-class iSCSI SAN.

Howard Marks is founder and chief scientist at Networks Are Our Lives, a network design and consulting firm in Hoboken, N.J. Write to him at hmarks@naol.com.

ALTERNATIVE Approaches

» Direct-Attached Storage. You could keep adding more drives to each server that needs more storage, but you'll waste a lot of disk space allocating whole RAID arrays to servers. Plus, you won't be able to build clusters with more than two members and it'll run slower, too.

» Fibre Channel. Conventional Fibre Channel SAN technology has a few advantages over iSCSI, including speed (current Fibre Channel gear runs at 2 Gbps), low latency and a deterministic access protocol that essentially eliminates packet loss from bandwidth overruns. But Fibre Channel is expensive--switches and HBAs typically cost up to five times more than iSCSI alternatives. Add in Fibre Channel's steep learning curve and historical lack of full interoperability, and it's probably best left to the old hands.


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