- LinuxVirtualServer.org - The official LinuxVirtualServer web site
- High-Availability Linux Project
- Windows 2000 Clustering Technologies
- The Condor® Project Homepage
- kernel.org - The primary site of the Linux kernel source
- kerneltrip.org - The related information and forum of kernel development
- kernelnewbies.org - The site for learning how to hack the kernel
- kernelhacking.org - Some documents about kernel hacking
- user-mode-linux.sourceforge.net - debugging the Linux kernel in user-mode
- The Xen virtual machine monitor - an open source virtual machine monitor
- Coda is a distributed filesystem with its origin in AFS2. It has many features that are very desirable for network filesystems.
- InterMezzo is a new distributed file system with a focus on high availability. InterMezzo will be suitable for replication of servers, mobile computing, managing system software on large clusters, and for maintenance of high availability clusters.
- Lustre is a scalable, secure, robust, highly-available cluster file system. It is designed, developed and maintained by Cluster File Systems, Inc.
- DRBD is a block device which is designed to build high availability clusters. This is done by mirroring a whole block device via (a dedicated) network. You could see it as a network raid-1.
- LVM (Logical Volume Manager) allows you to create file systems spanning multiple disks, create and manage large filesystems, extend and shrink online file systems, move data physically from one disk to another without changing the position in the file tree, and much more.
- LVM2 is the successor of LVM.
- IBM Redbooks: Messaging Solutions in a Linux Environment
- Ethereal - An excellent network analysis tool for troubleshooting, analysis, software and protocol development, and education.