13-2-1 backup rule
An IT best-practice operations standard for backups that includes keeping three copies of data (original and two backups) on two media, with one copy kept off site.
2array
A group of hard drives that work together to provide a single storage volume.
3attrib
A Windows command to view and change the attributes of a file, for example, to remove the hidden and system attributes assigned to a file so that you can view and delete the file.
4Backup and Restore
The Windows utility used to create and update scheduled backups of user data and the system image.
5backup operator
An IT job role that is responsible for implementing backup routines.
6basic disk
The term Windows uses to describe a hard drive when it is a stand-alone drive in the system. Compare with dynamic disk.
7cd (change directory)
The Windows command to change the current default directory.
9cluster
On a magnetic hard drive, one or more sectors that constitute the smallest unit of space on the drive for storing data (also referred to as a file allocation unit). Files are written to a drive as groups of whole clusters.
10copy
The Windows command to copy a single file, a group of files, or a folder and its contents.
11defragment
A drive maintenance procedure that rearranges fragments or parts of files on a magnetic hard drive so each file is stored on the drive in contiguous clusters.
12Defragment and Optimize Drives
A Windows utility that defragments a magnetic hard drive and trims an SSD to improve performance. Also called Defragment and Optimize Drives utility.
13del
The Windows command to delete a file or group of files. Also called the erase command.
14differential backup
A backup routine that backs up files that have changed or have been created since the last full backup.
15dir
The Windows command to list files and directories.
16Disk Cleanup
A Windows utility to delete temporary files and free up space on a drive.
17Disk Management
The Windows utility (diskmgmt. msc) used to install and manage drives.
18dynamic disk
A way to partition one or more hard drives so that they can work together to increase space for data storage or to provide fault tolerance or improved performance. Also see RAID. Compare with basic disk.
19dynamic volume
A volume type used with dynamic disks; allows you to create a single volume that uses space on multiple hard drives.
20elevated command prompt window
21FAT (file allocation table)
A table on a hard drive or other storage device used by the FAT file system to track the clusters used to contain a file.
22file allocation unit
On a magnetic hard drive, one or more sectors that constitute the smallest unit of space on the drive for storing data (also referred to as a file allocation unit). Files are written to a drive as groups of whole clusters.
23File Explorer Options applet
The Windows 10/11 applet used to determine how files and folders are displayed in File Explorer.
24File History
A Windows 10/11 utility that can schedule and maintain backups of data. It can also create a system image.
25format
The Windows command to prepare a hard drive volume, logical drive, or USB flash drive for use (e.g., format d:). This process erases all data on the device.
26full backup
A backup routine that backs up all files designated for backup. Compare to differential backup and incremental backup.
27grandfather-father-son (GFS)
A plan for rotating backup media. For example, a son backup media is rotated daily, a father backup media is rotated weekly, and a grandfather backup media is rotated monthly.
28Hardware RAID: One of two ways to implement RAID. Hardware RAID is more reliable and performs better than software RAID
and is implemented using BIOS/UEFI on the motherboard or a RAID controller card. Compare with software RAID.
29help: A Windows command that gives information about any Windows command.
30hibernation: A power-saving state that saves all work to the hard drive and powers down the system.
31incremental backup: A backup routine that backs up files that have changed or been created since the last backup
whether that backup is itself an incremental or a full backup.
32Indexing Options applet: A Windows applet in Control Panel used to control how Windows manages an index of content
which helps to make searches go faster.
33Mail applet: The default Windows email client available in Control Panel that can be managed from the Apps and features window in the Settings app.
34master file table (MFT): The database used by the NTFS file system to track the contents of a volume or logical drive.
35md: The Windows command to create a directory.
36mirroring: Copying one hard drive to another as a backup. Also called RAID 1.
37mkdir: The Windows command to create a directory.
38mounted drive: A volume that can be accessed by way of a folder on another volume so that the folder has more available space. Also see mount point.
39Power Options applet: A Windows applet accessed through Control Panel that manages power settings to conserve power.
40quick format: A format procedure for a hard drive volume or other drive that doesn't scan the volume or drive for bad sectors; use it only when a drive has been previously formatted and is in healthy condition. Compare with full format.
41RAID (redundant array of inexpensive disks or redundant array of independent disks): A data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy
performance improvement, or both.
42RAID 0: A RAID level that uses striping without parity or mirroring
with the goal of improving performance for tasks such as large file transfers.
43RAID 1: A RAID level that mirrors data across two or more disks to provide redundancy in case of disk failure.
44restore point: A snapshot of the Windows system
usually made before installation of new hardware or applications; created by the System Protection utility.
45rmdir: The Windows command that removes or deletes a directory; the directory must be empty and cannot be the current working directory.
46robocopy (robust file copy): A Windows command that is similar to and more powerful than the xcopy command; used to copy files and folders.
47Settings app: In Windows 10/11
an app to view and change many Windows settings.
48shutdown: The Windows or Linux command to shut down the local computer or a remote computer.
49simple volume: A type of volume used on a single hard drive. Compare with dynamic volume.
50slack: Wasted space on a hard drive caused by not using all available space at the end of a cluster.
51sleep mode: A power-saving state for a computer when it is not in use. Also called standby mode or suspend mode. Also see S3 state.
52sleep timer: The number of minutes of inactivity before a computer goes into a power-saving state such as sleep mode.
53software RAID: Using software to implement RAID. The setup is done using the Disk Management utility. Compare with hardware RAID.
54Sound applet: An applet accessed through Control Panel to select a default speaker and microphone and adjust how Windows handles sounds.
55standby mode: A power-saving state for a computer when it is not in use. Also called sleep mode or suspend mode. Also see S3 state.
56striping
Using space from two or more physical disks to increase the disk space available for a single volume. Performance improves because data is written evenly across all disks. Windows calls RAID 0 a striped volume. Also called striping or striped volume.
57suspend mode
A power-saving state for a computer when it is not in use. Also called standby mode or suspend mode. Also see S3 state.
58synthetic
When recovering a file, folder, or volume from backups, the reconstructed backup that is created from the latest full backup and any incremental or differential backups that contain data more current than the full backup.
59system image
The backup of the entire Windows volume; it can also include backups of other volumes. The system image works only on the computer that created it, and it is created using Windows File History or the Windows Backup and Restore utility.
60System Protection
A utility that automatically backs up system files and stores them in restore points on the hard drive at regular intervals and just before you install software or hardware.
61System Restore
A Windows utility used to restore the system to a restore point.
62trim
To erase entire blocks of unused data on an SSD so that write operations do not have to manage the data.
63USB selective suspend setting
A Windows power setting that controls the power state of USB ports when they are not in use; disabling this setting can sometimes solve problems with unreliable USB ports.
64wildcard
An * or ? character used in a command line that represents a character or group of characters in a file name or extension.
65winver
A Windows command that displays the About Windows box containing information about the Windows edition, latest update installed, and registered owner of the computer.
66xcopy
A Windows command more powerful than the copy command that is used to copy files and folders.