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Robocopy
Robocopy, for "Robust File Copy", is a command-line directory and/or file replication command for Microsoft Windows. Robocopy functionally replaces Xcopy, with more options. Created by Kevin Allen and first released as part of the Windows NT 4.0 Resource Kit, it has been a standard feature of Windows since Windows Vista and Windows Server 2008. The command is . Features Robocopy is noted for capabilities above and beyond the built-in Windows copy and xcopy commands, including the following, some requiring appropriate command-line options: *Ability to tolerate network interruptions and resume copy (incomplete files are marked with a date stamp of 1970-01-01 and contain a recovery record so Robocopy knows where to continue from). *Ability to skip NTFS junction points which can cause copying failures because of infinite loops (/XJ) *Ability to copy file data and attributes correctly, and to preserve original timestamps, as well as NTFS ACLs, owner information, and audit information ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xcopy
In computing, XCOPY is a command used on IBM PC DOS, MS-DOS, IBM OS/2, Microsoft Windows, FreeDOS, ReactOS, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network. Overview XCOPY stands for ''extended copy'', and was created as a more functional file copying utility than the copy command found in earlier operating systems. XCOPY first appeared in DOS 3.2. While still included in Windows 10, XCOPY has been deprecated in favor of robocopy, a more powerful copy tool, which is now supplied with the Microsoft Windows Server and Desktop operating systems. DR DOS 6.0 and Datalight ROM-DOS include an implementation of the command. The FreeDOS version was developed by Rene Ableidinger and is licensed under the GPL. J. Edmeades developed the Wine-compatible version that is included in ReactOS. It is licensed under the LGPL. Compression Since Windows Server 2019 and Windows 10, a compress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XCOPY
In computing, XCOPY is a command used on IBM PC DOS, MS-DOS, IBM OS/2, Microsoft Windows, FreeDOS, ReactOS, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network. Overview XCOPY stands for ''extended copy'', and was created as a more functional file copying utility than the copy command found in earlier operating systems. XCOPY first appeared in DOS 3.2. While still included in Windows 10, XCOPY has been deprecated in favor of robocopy, a more powerful copy tool, which is now supplied with the Microsoft Windows Server and Desktop operating systems. DR DOS 6.0 and Datalight ROM-DOS include an implementation of the command. The FreeDOS version was developed by Rene Ableidinger and is licensed under the GPL. J. Edmeades developed the Wine-compatible version that is included in ReactOS. It is licensed under the LGPL. Compression Since Windows Server 2019 and Windows 10, a compress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xcopy
In computing, XCOPY is a command used on IBM PC DOS, MS-DOS, IBM OS/2, Microsoft Windows, FreeDOS, ReactOS, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network. Overview XCOPY stands for ''extended copy'', and was created as a more functional file copying utility than the copy command found in earlier operating systems. XCOPY first appeared in DOS 3.2. While still included in Windows 10, XCOPY has been deprecated in favor of robocopy, a more powerful copy tool, which is now supplied with the Microsoft Windows Server and Desktop operating systems. DR DOS 6.0 and Datalight ROM-DOS include an implementation of the command. The FreeDOS version was developed by Rene Ableidinger and is licensed under the GPL. J. Edmeades developed the Wine-compatible version that is included in ReactOS. It is licensed under the LGPL. Compression Since Windows Server 2019 and Windows 10, a compress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows Resource Kit
Resource Kit is a term used by Microsoft for a set of software resources and documentation released for their software products, but which is not part of that product. Resource kits offer supplementary resources such as technical guidance, compatibility and troubleshooting information, management, support, maintenance and deployment guides and multipurpose useful administrative utilities, which are available separately. Overview The most common form of the Resource Kits are as a large book or box set of books which come with CD-ROM(s), both of which have been supplemented in some cases such as the Resource Kits for Windows NT Server versions 3.51 and 4.0 and Windows 2000 Server. The text of the Resource Kit books are also available with versions of the Microsoft Developer Network (MSDN) CD-ROMs, and a large subset to complete set of the tools included in the kits can be downloaded from the Microsoft web site. The tools can include everything from extra commands for the command line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recursion (computer Science)
In computer science, recursion is a method of solving a computational problem where the solution depends on solutions to smaller instances of the same problem. Recursion solves such recursive problems by using functions that call themselves from within their own code. The approach can be applied to many types of problems, and recursion is one of the central ideas of computer science. Most computer programming languages support recursion by allowing a function to call itself from within its own code. Some functional programming languages (for instance, Clojure) do not define any looping constructs but rely solely on recursion to repeatedly call code. It is proved in computability theory that these recursive-only languages are Turing complete; this means that they are as powerful (they can be used to solve the same problems) as imperative languages based on control structures such as and . Repeatedly calling a function from within itself may cause the call stack to have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Server Message Block
Server Message Block (SMB) is a communication protocol originally developed in 1983 by Barry A. Feigenbaum at IBM and intended to provide shared access to files and printers across nodes on a network of systems running IBM's OS/2. It also provides an authenticated inter-process communication (IPC) mechanism. In 1987, Microsoft and 3Com implemented SMB in LAN Manager for OS/2, at which time SMB used the NetBIOS service atop the NetBIOS Frames protocol as its underlying transport. Later, Microsoft implemented SMB in Windows NT 3.1 and has been updating it ever since, adapting it to work with newer underlying transports: TCP/IP and NetBT. SMB implementation consists of two vaguely named Windows services: "Server" (ID: LanmanServer) and "Workstation" (ID: LanmanWorkstation). It uses NTLM or Kerberos protocols for user authentication. In 1996, Microsoft published a version of SMB 1.0 with minor modifications under the Common Internet File System (CIFS ) moniker. CIFS was compatible w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyper-V
Microsoft Hyper-V, codenamed Viridian, and briefly known before its release as Windows Server Virtualization, is a native hypervisor; it can create virtual machines on x86-64 systems running Windows. Starting with Windows 8, Hyper-V superseded Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V was first released with Windows Server 2008, and has been available without additional charge since Windows Server 2012 and Windows 8. A standalone Windows Hyper-V Server is free, but has a command-line interface only. The last version of free Hyper-V Server is Hyper-V Server 2019, which is based on Windows Server 2019. History A beta version of Hyper-V was shipped with certain x86-64 editions of Windows Server 2008. The finalized version was released on June 26, 2008 and was delivered through Windows Update. Hyper-V has si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Migration
Live migration refers to the process of moving a running virtual machine (VM) or application between different physical machines without disconnecting the client or application. Memory, storage, and network connectivity of the virtual machine are transferred from the original guest machine to the destination. The time between stopping the VM or application on the source and resuming it on destination is called 'downtime'. When the downtime of a VM during live migration is small enough that it is not noticeable by the end user, it is called a 'seamless' live migration. Live migration of Virtual Machines Two techniques for moving the virtual machine's memory state from the source to the destination are pre-copy memory migration and post-copy memory migration. Pre-copy memory migration Pre-copy phase In pre-copy phase, the Hypervisor copies all the memory pages from source to destination while the VM is still running on the source. If some memory pages change (become 'dirty') d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washington, United States. Its best-known software products are the Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. Microsoft ranked No. 21 in the 2020 Fortune 500 rankings of the largest United States corporations by total revenue; it was the world's largest software maker by revenue as of 2019. It is one of the Big Five American information technology companies, alongside Alphabet, Amazon, Apple, and Meta. Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800. It rose to do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTFS
New Technology File System (NTFS) is a proprietary journaling file system developed by Microsoft. Starting with Windows NT 3.1, it is the default file system of the Windows NT family. It superseded File Allocation Table (FAT) as the preferred filesystem on Windows and is supported in Linux and BSD as well. NTFS reading and writing support is provided using a free and open-source kernel implementation known as NTFS3 in Linux and the NTFS-3G driver in BSD. By using the convert command, Windows can convert FAT32/16/12 into NTFS without the need to rewrite all files. NTFS uses several files typically hidden from the user to store metadata about other files stored on the drive which can help improve speed and performance when reading data. Unlike FAT and High Performance File System (HPFS), NTFS supports access control lists (ACLs), filesystem encryption, transparent compression, sparse files and file system journaling. NTFS also supports shadow copy to allow backups of a system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows Server 2008 R2
Windows Server 2008 R2 is the fifth version of the Windows Server operating system produced by Microsoft and released as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became General availability, generally available on October 22, 2009, shortly after the completion of Windows 7. It is the successor to Windows Server 2008, which is derived from the Windows Vista codebase, released the previous year, and was succeeded by the Windows 8-based Windows Server 2012. Enhancements in Windows Server 2008 R2 include new functionality for Active Directory, new Hardware virtualization, virtualization and management features, version 7.5 of the Internet Information Services web server and support for up to 256 logical processors. It is built on the same kernel (operating system), kernel used with the client-oriented Windows 7, and is the first Server (computing), server operating system released by Microsoft to exclusively support 64 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Access Control List
In computer security, an access-control list (ACL) is a list of permissions associated with a system resource (object). An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in a typical ACL specifies a subject and an operation. For instance, if a file object has an ACL that contains , this would give Alice permission to read and write the file and give Bob permission only to read it. Implementations Many kinds of operating systems implement ACLs or have a historical implementation; the first implementation of ACLs was in the filesystem of Multics in 1965. Filesystem ACLs A filesystem ACL is a data structure (usually a table) containing entries that specify individual user or group rights to specific system objects such as programs, processes, or files. These entries are known as access-control entries (ACEs) in the Microsoft Windows NT, OpenVMS, and Unix-like operating systems s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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