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Backup Academy GLOSSARY

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a
Agent level backups
Software that is installed in an operating system and is used to create backups.
Application consistent backup
A backup that has the application properly prepared for a backup.
Application level backups
A backup made within an application only.
Application level restores
The ability to restore directly to an application without an entire restore.
b
Backup
A means to recover application, systems or data. The creation of a copy of data just in case the original data is lost or damaged.
Backup scheduling
The option to schedule backups on a weekly or daily basis, allowing you to run backups when the computer is not in use.
Backup verification
The ability to ensure that the current state of a system is backed up.
Backup window
A preset amount of time in which data must be restored in order to elude any damaging or negative effects on the applications or systems that use the data.
Bare-metal restore
The ability to restore completely to different hardware which must be the same configuration as the system the restore was made for.
c
CDP
A storage system where all the data is backed up whenever any changes occur, creating a journal of snapshots of every instance of data modification and preserving a record of every transaction that took place.
Changed block tracking (CBT)
A VMware feature that allows virtual machines to tracks disk sectors that have changed. On VMFS partitions, CBT can also identify all the disk sectors that are in use.
Common Internet File System (CIFS)
Deprecated name of a Windows networking protocol that lets programs make requests for files or services on remote computers.
Crash consistent backup
A backup equivalent to removing power from a system.
d
D2D backup
A disk to disk backup technology, which is a high throughput transfer.
D2D2T backup
A disk to disk to tape backup transfer technology.
D2T backup
A disk to tape backup technology, which is slower than D2D.
Deduplication
The deduplication process eliminates redundant data and therefore reduces the required storage capacity.
Direct-attached storage (DAS)
DAS is a digital storage system, such as a hard drive, that is directly attached to a computer or a server via a fibre channel, SAS or SCSI.
Distributed Power Management (DPM)
A part of DRS, DPM optimizes power consumption in the datacenter by consolidating workloads onto fewer servers and powering off the rest when they are not needed, usually during weekends and nights. Once the resource requirements increase, the powered-down servers come back online.
Distributed Resource Scheduler (DRS)
Storage Distributed Resource Scheduler (DRS) is a VMware vSphere feature that enables smart VM placement and load balancing based on capacity and storage I/O inside a cluster.
e
ESX/ESXi
A bare-metal embedded hypervisor offered by VMware for vSphere technologies. As of vSphere 5, ESXi is the only shipping hypervisor.
f
Fault Tolerance
The ability of a system to incur multiple point of failure and continue to perform.
File level backups
A backup based on simple file copies or file system snapshots.
h
Hardware abstraction layer (HAL)
A layer of programming between the software and the physical hardware of a computer that permits a computer OS to interact with a hardware device at a general level.
Hyper-V Clustered Shared Volumes
A shared storage mechanism for Hyper-V and Failover Cluster Manager.
Hyper-V Host Integration Services
A set of drivers and utilities that improve the overall experience in Hyper-V virtual machines.
Hyper-V Server 2008 R2
A free, complete hypervisor installation that resembles Windows Server 2008 R2 core install with the Hyper-V Role, except additional roles can't be added.
Hyper-V virtualization
Type 1 hypervisor environment built for Windows Server technologies. It allows multiple instances of operating systems to run at the same time.
i
Image - based backup
A computer or a VM backup process that creates a copy of the OS and all of the data associated with it, along with configurations and the system state. Data deduplication can be used to reduce the amount of stored data since image-level backup applications use snapshots and back up all of the data including deleted files and empty disk blocks.
Image level backups
Full copies of a system for a backup, typically using a snapshot and API framework of a virtualization infrastructure, along with the entire file system and application inventory of the system backed up.
Instant File-Level Recovery (IFLR)
Veeam Backup & Replication's vPower capability that publishes the VMDK as an NFS datastore directly from the compressed and deduplicated backup file. You can then mount the VMDK and restore lost or corrupted files using native OS or other file management tools.
Internet Small Computer System Interface (iSCSI)
Internet Small Computer System Interface (iSCSI) is an IP used by storage area networks for linking data storage facilities. It is used to manage storage over long distances and facilitate data transfers over intranets.
l
Local Area Network (LAN)
A network that connects computers and associated devices with a common communication line or wireless link in a limited area such as an office building, school or a computer lab. Ethernet and Wi-Fi are two of the most common technologies used to create LANs.
Logical Unit Number (LUN)
LUN is a unique number used to identify a drive presented to a system over a block storage protocol, such as a fibre channel or iSCSI.
n
Near-CDP
A backup and recovery solution that takes backup snapshots at set intervals as opposed to true CDP which takes snapshots when new data is written. Near CDP solutions usually have a set number of snapshots that can be created, earlier snapshots will be overwritten when this limit is reached.
Network Attached Storage (NAS)
Technologies include leveraging Server Message Block (SMB) communication for Windows networking. Another option would be Network File System (NFS), a Linux and UNIX based network storage technology.
Network File System (NFS)
A UNIX and Linux based networks storage protocol that give you access to files over a network.
p
Provider
An interface that provides the functionality to make the shadow copy, typically the operating system or the disk driver within the VSS framework.
q
Quiescence
The ability to quiet a virtual machine for backup.
r
Raw Device Mapping (RDM)
RDM is a mechanism for disk resources to be presented to virtual machines directly.
Recovery simulation
The ability to ensure that a backup is recoverable.
Replication
The process of duplicating a critical data set or an entire system to help speed recovery from system failure. Duplicates are knows as snapshots.
Requestor
The application that requests the creation of a shadow copy within the VSS framework.
RPO
A maximum time period in which data loss occurs in the event of a disaster that affects IT services.
RTO
The amount of time it takes, from the start of a disaster, to recover the service and have it available to users. It is measured in seconds, minutes, hours or days and is very important when planning disaster recovery.
s
SAN-based replication
A technology that is provided by a storage system to move data from one storage system to another.
Server Message Block (SMB)
Windows internetworking network based storage protocol that allows a client application to read, create and update files as well as communicate with any server program.
Simple Network Management Protocol (SNMP)
A network monitoring and control protocol used for exchanging information between network devices such as routers, switches, workstations, printers, servers and more.
Storage Area Network (SAN)
SAN is a high speed network that connects data storage devices with interconnected data servers to a collection of disks.
SureBackup
Veeam Backup & Replication's vPower capability that automates the entire backup verification process, so you can verify the recoverability of every backup of every virtual machine every time, without additional hardware or staff.
u
U-AIR®(Universal Application-Item Recovery)
Veeam Backup & Replication vPower capability enables quick recovery of individual-objects from any virtualized application. You just need to run the VM from a backup in an isolated environment that vPower creates and manages for you, and retrieve the items you need.
v
VCB
(designed for VMware VI3, replaced by vStorage APIs) a proxy server that assisted with LAN-free backups of VMs. Allows 3rd party vendors to read/write to VMFS volume and perform full and incremental backup of virtual machines, support for network attached storage and the ability to manage backups from a centralized point.
Virtual machine
A software implementation of a computer that acts and appears like a separate physical machine. VMs can be copied, moved and reassigned to optimize hardware resource use.
Virtual Machine File System (VMFS)
VMware VMFS is a cluster file system used to store virtual machine disk images and snapshots. It allows multiple servers to read/write simultaneously, lets you add or delete ESX servers without disruption of other ESX server hosts, provides adaptive block sizing and faster recovery of VM's when server failure occurs.
VM snapshot
A point-in-time view of a virtual machine which preserves state and data.
VMware Tools
A collection of utilities and drivers that improve the functionality and performance for a better experience in VMware virtual machines.
Volume Shadow Copy (VSS)
An application consistency framework for Windows that creates shadow copies, point-in-time copies of data.
vStorage API
VMware's application program interface that enables 3rd-party storage and backup vendors to integrate their products with VMware's vSphere. The four APIs provided by VMware are vStorage APIs for Data Protection (VADP), vStorage APOs for Multipathing (VAMP), vStorage APIs for Array Integration (VAAI), and vStorage APIs for Storage Awareness (VASA).
w
Windows Server 2008 with the Hyper-V Role
A normal install of Windows with Hyper-V virtualization added.
Windows Server Backup
A built-in backup application for Windows, formerly called NTBackup.
Writer
An application that ensures application data is ready for shadow copy creation within the VSS framework.