Inferno® is a distributed operating system, originally developed at Bell Labs, but now developed and maintained by Vita Nuova® as Free Software. Applications written in Inferno's concurrent programming language, Limbo, are compiled to its portable virtual machine code (Dis), to run anywhere on a
... [More] network in the portable environment that Inferno provides. Unusually, that environment looks and acts like a complete operating system.
The use of a high-level language and virtual machine is sensible but mundane. The interesting thing is the system's representation of services and resources. They are represented in a file-like name hiearchy. Programs access them using only the file operations open, read/write, and close. The 'files' may of course represent stored data, but may also be devices, [Less]
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.
SmartOS: The Complete Modern Operating System
SmartOS incorporates the four most revolutionary OS technologies of the past decade — Zones, ZFS, DTrace and KVM — into a single operating system, providing an arbitrarily observable, highly multi-tenant environment built on a reliable
... [More], enterprise-grade storage stack. With the introduction of KVM in SmartOS, you no longer have to give up the power of an enterprise-grade operating system in order to run legacy applications and stacks.
SmartOS turns any server into a highly efficient hosting platform for multi-tenant, machine-to-machine, or storage applications. SmartOS offers unique, innovative tools for application developers, service providers and data center operators – tuned and hardened for modern datacenter deployment. [Less]
Jari OS is a real-time microkernel operating system which runs in terms of multi-service architecture. Core system consists of its own microkernel μString, core and system services, set of device drivers launched as trusted services.
Our system is a pure microkernel and multi-service OS. All work
... [More] is made via trusted services, and each service works within its own address space, and in this case Jari OS is a pure multi-service OS. Jari OS provide POSIX API for threads, files, networking, timers, memory operations. [Less]
Fura is a self-contained grid middleware that allows the grid enablement and distribution of applications on heterogeneous computational resources. Fura features a web-based GUI, wizard-guided installation and configuration, and Web Services compliance. Fura's component based plug-in architecture
... [More] allows grid services to be extended or replaced, and new services can be developed reusing existing components. [Less]
TestDisk is a powerful free data recovery program! It was primarily designed to recover lost partitions, repair FAT/NTFS boot sector, NTFS MFT and Ext2/Ext3 superblock and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human
... [More] error (such as accidentally deleting your Partition Table).
PhotoRec is a File Recovery program designed to recover lost files; including video, documents and archives from Hard Disks, CDRom and lost pictures from digital camera memory (thus, its Photo Recovery name). PhotoRec ignores the filesystem and goes after the underlying data, so it can still find files even if your media's filesystem has been severely damaged or re-formatted (overwritten data, of course, can not be recovered). [Less]
libguestfs is a library for accessing and modifying guest disk images. Amongst the things this is good for: making batch configuration changes to guests, getting disk used/free statistics (see also: virt-df), migrating between virtualization systems (see also: virt-p2v), performing partial backups
... [More], performing partial guest clones, cloning guests and changing registry/UUID/hostname info, and much else besides.
libguestfs uses Linux kernel and qemu code, and can access any type of guest filesystem that Linux and qemu can, including but not limited to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition schemes, qcow, qcow2, vmdk.
libguestfs has bindings for C, C++, OCaml, Perl, Python, Ruby or Java. [Less]
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