What is backup_ _ storageswiss. com – the home of storage switzerland

Defining backup is both simple and complex. Database 2010 Google says a backup is “the procedure for making extra copies of data in case the original is lost or damaged.” This definition describes the action (extra copies) and the purpose (in case the original is lost or damaged), and backup is a procedure, not a thing. Dayz database map So in order for something to be a backup, it must be an actual copy, made for the purpose of restoring the original when damaged, and there needs to be a procedure. Database website template Let’s take a look at these elements of the definition.

For something to be a backup, it must be an actual copy. 7 data recovery registration code A copy by definition is independent of the original. 7 databases in 7 weeks pdf The two most common data protection techniques that are very helpful but do not meet the definition of a backup are RAID and snapshots.


Database key definition RAID and its close cousin erasure coding are not backup because neither of them protect against data corruption at the block, file or object level. Database hierarchy They protect only against media failure. Data recovery on mac If a drive fails, RAID and erasure coding can automatically replace data using parity; however, if you delete a file or drop a table in a database, RAID will be of no help. Data recovery kali linux This is why RAID is not a backup. I card data recovery File system and volume snapshots, most commonly found in NAS filers, are the opposite of RAID. Database name If you delete or corrupt a file, they make it very easy to restore that file to its original condition; however, if you lose three drives in the RAID six volume that the snapshots reside on, those snapshots will be worthless. Database quiz This is why snapshots that have not been replicated to another volume are not backup.

A backup is made for the purpose of restoring data when it is lost or damaged, which means that an archive is not a backup. Database url Archives are made for multiple reasons, none of which are to restore data when it is lost or damaged. Os x data recovery free Archives store data in order to retrieve them for a different purpose. Fda 510 k database A backup of exchange is used to restore the exchange server to the way it looked yesterday. Database research An archive of exchange is used to search for emails across a period of time, such as all emails from a given user or containing a certain phrase. Graph database It is possible for a single system to serve as both a backup and an archive, but it is rare.

In order for a backup to accomplish its purpose – restoring data – there needs to be some kind of procedure to make sure backup happens. Data recovery android free For example, a bunch of DVDs containing copies of your laptop’s hard drive would meet two of the elements in the previous definition of backup, but the lack of an automated procedure puts into question their status as a backup. Database software In addition, the lack of some kind of database containing what’s in those DVDs will make it very hard to use them to restore files.

One popular system also used for backup is replicated snapshots. Database software definition Unlike snapshots alone, replicated snapshots do meet the first part of the definition – they are an actual copy. Database error 7719 at exe They also meet the second part of the definition, as they can be used to restore files or entire volumes if the original files or volumes were damaged or corrupted. Data recovery nj The question is whether they match the procedure portion of the definition. Iphone 6 data recovery mac The concern is the frequent lack of a management and reporting system to make sure that the copies happen at regular intervals and to make it easy to search the backups for the purpose of restore. Database design tool If that system is in place then most people would consider replicated snapshots backups; if not, they are just copies.

What, then, is a backup in today’s world? Any system that schedules the copying of data from one system to another — and hopefully one location to another — and manages a catalog of that data to facilitate easy restore. H data recovery software This is a more limiting definition than the one that started this blog post, but it’s one that backup experts can agree on. 1 care data recovery software The additional requirement of copying data from one location to another is more about disaster recovery, but one could argue that if a backup is stored in a box right next to the thing it’s backing up, it’s not really going to be available for a restore. Database user interface Backup software products that backup data from a server or VM to other storage meet the definition. Data recovery jaipur So do products that manage the scheduling, replication, and cataloging of snapshots from storage systems that support them. Database platforms StorageSwiss Take

There are a lot of things that meet the definition of backup today that would be unrecognizable to someone performing backups 20 years ago. Data recovery group Three things are still definitely not back up: RAID, un-replicated snapshots, and archives. Database xls They each have their purpose, but they are not backup. C database library If one is using replicated snapshots as their backup system, they do need to make sure that there is some type of management and reporting system to make sure that this backup is doing its job. 510 k database Learn the risks that your data faces and make sure you are protecting against all of them.

Defining backup is both simple and complex. How to become a database administrator Google says a backup is “the procedure for making extra copies of data in case the original is lost or damaged.” This definition describes the action (extra copies) and the purpose (in case the original is lost or damaged), and backup is a procedure, not a thing. Database xml So in order for something to be a backup, it must be an actual copy, made for the purpose of restoring the original when damaged, and there needs to be a procedure. Database terminology Let’s take a look at these elements of the definition.

For something to be a backup, it must be an actual copy. Database theory A copy by definition is independent of the original. Database 1 to 1 relationship The two most common data protection techniques that are very helpful but do not meet the definition of a backup are RAID and snapshots. Database testing RAID and its close cousin erasure coding are not backup because neither of them protect against data corruption at the block, file or object level. Database graph They protect only against media failure. Database naming conventions If a drive fails, RAID and erasure coding can automatically replace data using parity; however, if you delete a file or drop a table in a database, RAID will be of no help. Database entity This is why RAID is not a backup. Database developer File system and volume snapshots, most commonly found in NAS filers, are the opposite of RAID. Data recovery plan If you delete or corrupt a file, they make it very easy to restore that file to its original condition; however, if you lose three drives in the RAID six volume that the snapshots reside on, those snapshots will be worthless. Data recovery kansas city This is why snapshots that have not been replicated to another volume are not backup.

A backup is made for the purpose of restoring data when it is lost or damaged, which means that an archive is not a backup. N k database Archives are made for multiple reasons, none of which are to restore data when it is lost or damaged. Data recovery 2016 Archives store data in order to retrieve them for a different purpose. 510 k database fda A backup of exchange is used to restore the exchange server to the way it looked yesterday. Database programmer An archive of exchange is used to search for emails across a period of time, such as all emails from a given user or containing a certain phrase. Data recovery osx It is possible for a single system to serve as both a backup and an archive, but it is rare.

In order for a backup to accomplish its purpose – restoring data – there needs to be some kind of procedure to make sure backup happens. Database integrity For example, a bunch of DVDs containing copies of your laptop’s hard drive would meet two of the elements in the previous definition of backup, but the lack of an automated procedure puts into question their status as a backup. Database backup In addition, the lack of some kind of database containing what’s in those DVDs will make it very hard to use them to restore files.

One popular system also used for backup is replicated snapshots. Hollywood u database Unlike snapshots alone, replicated snapshots do meet the first part of the definition – they are an actual copy. Data recovery ipad They also meet the second part of the definition, as they can be used to restore files or entire volumes if the original files or volumes were damaged or corrupted. Database vs server The question is whether they match the procedure portion of the definition. Database is in transition The concern is the frequent lack of a management and reporting system to make sure that the copies happen at regular intervals and to make it easy to search the backups for the purpose of restore. Data recovery ios If that system is in place then most people would consider replicated snapshots backups; if not, they are just copies.

What, then, is a backup in today’s world? Any system that schedules the copying of data from one system to another — and hopefully one location to another — and manages a catalog of that data to facilitate easy restore. Database data types This is a more limiting definition than the one that started this blog post, but it’s one that backup experts can agree on. Data recovery johannesburg The additional requirement of copying data from one location to another is more about disaster recovery, but one could argue that if a backup is stored in a box right next to the thing it’s backing up, it’s not really going to be available for a restore. Iphone 5 data recovery software Backup software products that backup data from a server or VM to other storage meet the definition. Database operations So do products that manage the scheduling, replication, and cataloging of snapshots from storage systems that support them. Database index StorageSwiss Take

There are a lot of things that meet the definition of backup today that would be unrecognizable to someone performing backups 20 years ago. Database crud Three things are still definitely not back up: RAID, un-replicated snapshots, and archives. Drupal 8 database They each have their purpose, but they are not backup. Data recovery disk If one is using replicated snapshots as their backup system, they do need to make sure that there is some type of management and reporting system to make sure that this backup is doing its job. Database 3 tier architecture Learn the risks that your data faces and make sure you are protecting against all of them.

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