Linux System Administration and Configuration After installation, Linux requires configuration and systems administration.Corporate systems need monitoring, backups.NovaBACKUP DataCenter Data protection software.Network backup for Windows, Linux, Exchange SQL in physical, virtual environments.DiskTapeCloud. Backup.Assist Pricing Your Affordable Backup Solution.Computer data storage devices, data solutions and backup systems for small businesses from Dell, help you manage data challenges.What is backup Definition from What.Is. com. Backup refers to the copying of physical or virtual files or databases to a secondary site for preservation in case of equipment failure or other catastrophe.The process of backing up data is pivotal to a successful disaster recovery DR plan.By submitting your personal information, you agree that Tech.Target and its partners may contact you regarding relevant content, products and special offers.You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.What is backup and recovery Enterprises back up data they deem to be vulnerable in the event of buggy software, data corruption, hardware failure, malicious hacking, user error or other unforeseen events.Backups capture and synchronize a point in time snapshot that is then used to return data to its previous state.Backup and recovery testing examines an organizations practices and technologies for data security and data replication.The goal is to ensure rapid and reliable data retrieval should the need arise.The process of retrieving backed up data files is known as file restoration.The terms data backup and data protection are often used interchangeably, although data protection encompasses the broader goals of business continuity, data security, information lifecycle management, and the prevention of malware and computer viruses.What data should be backed up and how frequently A backup process is applied to critical databases or related line of business applications.Best Free Backup To Tape Software Update' title='Best Free Backup To Tape Software Update' />The process is governed by predefined backup policies that specify how frequently the data is backed up and how many duplicate copies known as replicas are required, as well as by service level agreements SLAs that stipulate how quickly data must be restored.Best practices suggest a full data backup should be scheduled to occur at least once a week, often during weekends or off business hours.To supplement weekly full backups, enterprises typically schedule a series of differential or incremental data backup jobs that back up only data that has changed since the last full backup took place.Backup storage media.Enterprises typically back up key data to dedicated backup appliances or magnetic tape systems.Data deduplication systems contain hard disk drives HDDs and are equipped with software for setting backup policies.Disk to disk backup systems initially appeared as an alternative to magnetic backup tape drive libraries.Both disk and tape are still used today, and often in conjunction.As file sizes have increased, some backup vendors have brought integrated data protection appliances to market in an effort to simplify the backup process.An integrated data appliance is essentially a file server outfitted with HDDs and vendor developed backup software.These plug and play data storage devices often include automated features for monitoring disk capacity, expandable storage and preconfigured tape libraries.Most disk based backup appliances allow copies to be moved from spinning media to magnetic tape for long term retention.Magnetic tape systems are still used as backup media due to increasing tape densities and the rise of linear tape file systems.A virtual tape library VTL provides a less costly option to a deduplication array.A VTL is a disk based system whose behavior mimics that of a physical tape library.Solid state drives SSDs generally are not used for data backup because of endurance concerns.Some storage vendors include SSDs as a caching or tiering tool for managing writes with disk based arrays.Data is initially cached in flash storage and then written to disk.Local backup vs. offline backup for primary storage.Modern primary storage systems have evolved to feature stronger native capabilities for data backup.These features include advanced RAID protection schemes, unlimited snapshots, and tools for replicating snapshots to secondary backup or even tertiary off site backup.Despite these advances, primary storage based backup tends to be more expensive and lacks the indexing capabilities found in traditional backup products.Data deduplication, for example, first appeared in EMC Data Domain backup appliances but is gradually becoming a baseline feature of branded, primary storage arrays.Local backups place data copies on external HDDs or magnetic tape systems, typically housed in or near an on premises data center.The data is transmitted over a secure high bandwidth network connection or corporate intranet. 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One advantage of local backup is the ability to back up data behind a network firewall.Local backup is also much quicker and provides greater control over who can access the data.Offline or cold backup is similar to local backup, although it is most often associated with backing up a database.An offline backup incurs downtime since the backup process occurs while the database is disconnected from its network.Backup and cloud storage.Conversely, off site backup transmits data copies to a remote location, which can include a companys secondary data center or leased colocation facility.Increasingly, off site data backup equates to subscription based cloud storage as a service, which provides low cost, scalable capacity and eliminates the customers need to purchase and maintain backup hardware.Despite its growing popularity, electing backup as a service requires users to encrypt data and take other steps to safeguard data integrity.Cloud backup is divided into the following Expert George Crump discusses data backup and issues that can occur when backing up to the cloud.Most backup vendors enable local applications to be backed up to a dedicated private cloud, effectively treating cloud based data backup as an extension of a customers physical data center.Also known as disaster recovery as a service, this maturing field allows an organization to lease space on a service providers storage servers for centralized backup and management of lifeline data.Cloud to cloud data backup is an alternative approach that has been gaining momentum.Using this method, a customers data is copied from one cloud backup platform to another cloud.It also refers to cloud based backups of data stored on software as a service platforms.Backup storage for PCs and mobile devices.PC users can consider both local backup from a computers internal hard disk to an attached external hard drive or removable media such as a thumb drive.Another alternative for consumers is to back up data on smartphones and tablets to personal cloud storage, which is available from vendors such as Box, Carbonite, Dropbox, Google Drive, Microsoft One.Drive and others.These services are commonly used to provide a certain capacity for free, giving consumers the option to purchase additional storage as needed.Unlike enterprise cloud storage as a service, these consumer based cloud offerings generally do not provide the level of data security businesses require.Backup software and hardware vendors.Vendors that sell backup hardware platforms include Barracuda Networks, Dell, Drobo, EMC Data Domain, Exa.Grid Systems, Hewlett Packard Enterprise, Hitachi Data Systems including Sepaton, IBM, NEC Corp., Net.App, Oracle Storage Tek tape libraries, Quantum Corp., Spectra Logic, Unitrends and Veritas Net.Backup formerly Symantec Net.Backup. Leading enterprise backup software vendors include Acronis, Arcserve, Asigra, Commvault, Datto, Druva, EMC Data Protection Suite Avamar, Data Protection Advisor, Mozy, Net.Worker and Source.One, EMC Recover.Point replication manger, Nakivo and Veeam Software.The Microsoft Windows Server operating system inherently features the Microsoft Resilient File System Microsoft Re.FS to automatically detect and repair corrupted data.While not technically data backup, Microsoft Re.FS is geared to be a preventive measure for safeguarding file system data against corruption.VMware v. Sphere provides a suite of backup tools for data protection, high availability and replication.The VMware v. Storage APIs for Data Protection VADP allows VMware or supported third party backup software to safely take full and incremental backups of virtual machines VMs.VADP implements backups via hypervisor based snapshots.As an adjunct to data backup, VMware v.