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In distributed computing, a single system image (SSI) cluster is a cluster of machines that appears to be one single system. [1] [2] [3] The concept is often considered synonymous with that of a distributed operating system, [4] [5] but a single image may be presented for more limited purposes, just job scheduling for instance, which may be achieved by means of an additional layer of software ...
A process image is a copy of a given process's state at a given point in time. It is often used to create persistence within an otherwise volatile system. A common example is a database management system (DBMS). Most DBMS can store the state of its database or databases to a file before being closed down (see database dump). The DBMS can then ...
Python No No Yes Yes ? May 5, 2010: FreeFileSync: GPLv3 C++ Yes Yes Yes Yes Yes January 7, 2024: git-annex: GPL3+ Haskell: No Yes Yes Partial Yes Feb 19, 2019: luckyBackup: GPLv3 C++ No No Yes Yes Yes Nov 18, 2018: Proxmox Backup Server: AGPLv3.0 Rust No No Yes Yes Yes March 29, 2023 [3] Restic: BSD 2-Clause License Go Yes Yes Yes No Yes Nov 8 ...
Log carving occurs when a recovery program uses information left over in either file system structures or the log to recover a deleted photo. For example, occasionally NTFS will store in the logs the exact location of where the file was located prior to its deletion. A program using log carving will be able to then recover the photo.
The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive.
Python Imaging Library is a free and open-source additional library for the Python programming language that adds support for opening, manipulating, and saving many different image file formats. It is available for Windows, Mac OS X and Linux. The latest version of PIL is 1.1.7, was released in September 2009 and supports Python 1.5.2–2.7. [3]
OpenSSI can use SAN based clustered file systems for its root provided they provide a POSIX compatible file system interface. Lustre and Global File System have been tested, too. With a clustered file system, each node mounts the file system in parallel and access to the files goes directly from the node to the file system.
A disk image is a snapshot of a storage device's structure and data typically stored in one or more computer files on another storage device. [1] [2]Traditionally, disk images were bit-by-bit copies of every sector on a hard disk often created for digital forensic purposes, but it is now common to only copy allocated data to reduce storage space.