{"id":18629,"date":"2022-03-30T09:21:26","date_gmt":"2022-03-30T17:21:26","guid":{"rendered":"http:\/\/www.palada.net\/index.php\/2022\/03\/30\/news-12362\/"},"modified":"2022-03-30T09:21:26","modified_gmt":"2022-03-30T17:21:26","slug":"news-12362","status":"publish","type":"post","link":"http:\/\/www.palada.net\/index.php\/2022\/03\/30\/news-12362\/","title":{"rendered":"Understanding data backups"},"content":{"rendered":"

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Credit to Author: stephenlawton| Date: Wed, 30 Mar 2022 15:30:50 +0000<\/strong><\/p>\n

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There is a maxim in the business continuity market that says that a backup on its own is worthless, but restoring a backup successfully is priceless. Too many organizations have suffered from backups that either failed to restore\u2014or restore correctly\u2014or that were already compromised. Failed backups are of no value from a business continuity perspective.<\/span>\u00a0<\/span><\/p>\n

However, backups that restore correctly, are clean of all malware, and were encrypted so that the IT security teams knows that they were not compromised after the backup was created, are considered the best scenario for IT managers.<\/span>\u00a0<\/span><\/p>\n

According to Sophos\u2019 <\/span>The State of Ransomware 2021<\/span><\/i> report, 37% of respondents said they were hit by ransomware and on average. While 96% said they got back their data after paying the ransom, only 65% of the encrypted data that was affected was restored. These statistics underscore how essential it is to not only have secure backups, but also protected backups stored in more than one physical location that are directly connected to the network.\u00a0\u00a0<\/span>\u00a0<\/span><\/p>\n

Types of backups\u00a0<\/span><\/b>\u00a0<\/span><\/h3>\n

There are five types of backups:<\/span>\u00a0<\/span><\/p>\n

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  1. Full File-based backup:<\/span><\/b> A full backup is the simplest form of backup, which contains all the folders and files that you selected to be backed up. This is called a file-based backup because it only backs up <\/span>visible <\/span><\/i>files, not hidden or system files that are often hidden.<\/span>\u00a0<\/span><\/li>\n
  2. Incremental Backup:<\/span><\/b>\u00a0This backup only includes files that were not backed up the last time. When restoring backups made from incremental backups, you must restore each incremental backup in order that it was created, starting with the full backup.<\/span>\u00a0<\/span><\/li>\n
  3. Differential Backup: <\/span><\/b>Differential backups only include data that was added or changed since the most recent full backup. When restoring using this method, you need only restore the initial full backup and the most recent incremental backup.<\/span>\u00a0<\/span><\/li>\n
  4. Image Backups: <\/span><\/b>An image backup includes everything on the disk, including any hidden or system files. You can use incremental or differential images to supplement your full image backup.\u00a0<\/span>\u00a0<\/span><\/li>\n
  5. Copy Jobs<\/span><\/b>: This includes individual files or folders copied from one location to another.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n

    \u00a0<\/span>Recommendations on effective backup restores<\/span><\/b>\u00a0<\/span><\/h3>\n

    Since restoring the backup really is the ultimate goal, it is important to focus on what makes for successful backup-and-restore policies and procedures.\u00a0 Here are some recommendations that you might find helpful.<\/span>\u00a0<\/span><\/p>\n