To save any organisation from any big future loss, one needs make a proper strategy or disaster plan that will save them in their hard time. When working with critical data it becomes very necessary to backup organisation data. In any organisation, for an administrator it is very important task to make a disaster plan because the risk of loosing data due to hardware failures, human error, natural catastrophes, network intrusions is always there.
When the SQL server met with disaster, admin needs a plan or a way to recover their precious data.
To safeguard SQL server databases there is SQL server backup and restore component that protects data from any catastrophic data loss.
Why backup a Database In SQL Server ?
In order to save data from such damages, user needs to backup the database regular basis that will also preserve data from modifications, table corruption, etc. there should be a proper backup and restore, that will safeguard organisation data against data loss caused due to various factors. In any organisation there are number of systems having crucial information in them, virus intrusions in one of the system can cause huge loss entire network. By keeping data in backup storage, one can smooth perform restore their data after even the damage.
Hardware Failure/Media Failure: It includes reasons like bad sector, hard drive crash, etc.
User Error: sometimes people unintentionally deletes data or make any alteration on data. For example- when user drop a table by mistake.
Natural disaster: one can not save their on-premises data from such natural tragedy, however, SQL server provides a service called Windows azure storage service, in this user can create an off-site backup in a different location and then in on-premises location.
There are also, Other reasons due to which need of backup arises-Power failure, mechanical damage to hardware, viruses and damaging malware.
Backup Strategy Best Practices in SQL Server
- SQL server perform backup when the user is in active state and transactions are being processed, therefore one can only back when system in use
- User can shorten their backup period by using data compression feature and also by saving database to disk. However, user must not use same disk for backup that storing database or transaction log.
- Time to time backup the transaction log, as it covers all activities and keeps it very up-to date.
- User must backup SQL server system database as it contains all vital information of system configuration and required in the event of complete restore.
- User must ensure the security of database.
SQL database backup is a very important activity that one can perform to safeguard the data present in the SQL database. Backup is one way with which users of an SQL database can restore their data preventing a catastrophic loss. In case, at the time of disaster, if one doesn’t have any backup strategy, then going for an SQL Database Recovery Software would be a good choice to recover data from disaster without a backup.