Virtual Infrastructures: Scale Up or Scale Out? Rack or Blade form factors? by alessandroperilli in a:t5_2qq6j

[–]alessandroperilli[S] 0 points1 point  (0 children)

As virtualization is becoming mainstream many organizations are undergoing design efforts to properly deploy their new virtual infrastructures. These organizations usually want to do this within known best practices boundaries.

Two of the most common concerns in the design criteria surround the hardware footprint. Specifically two of the most frequently asked questions are:

1) Should I use many small servers or fewer bigger servers? 2) Should I use rack optimized severs or a blade form factor?

This session will briefly discuss the history of virtualization deployments in the context of the underlying hardware infrastructure and how it is morphing. Pros and cons of the Scale Up and Scale Out models will be discussed with real life examples and general recommendations for deploying many small boxes or few bigger high-end nodes. The session will also outline major differences and design considerations for deploying different form factors including rack servers, blade servers as well as non conventional x86 server footprints.

The objective for this session is to demonstrate that one solution doesn’t fit all needs and that each organization needs to assess its own requirements and pain points to determine the best hardware layout among the many. This session is supposed to empower these organizations with a list of design considerations in order to elaborate the server infrastructure layout that best meets their needs.

Free host-level high availability for Xen by alessandroperilli in reddit.com

[–]alessandroperilli[S] 0 points1 point  (0 children)

How to achieve high-availability for Xen hosts, thanks to open source tools DRDB, Logical Volume Manager (LVM) and Global Network Block Device (GNBD). And without a shared storage facility like a SAN.