Incremental or Differential Backups of SQL Server Database

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Does the SQL add on support Incremental or Differential Backups of SQL Server Database?

Tue, 05/10/2016 - 11:05
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Hello,

Our SQL backup is done using single-pass backup of the entire volume. The SQL meta-data is extracted during this volume backup, allowing you to restore seperate databases, mount them on a running instance and do all the other SQL-specific actions.

The volume backup supports both incremental and differential backups and the SQL single-pass functionality does not affect this in anyway.

Thank you.

Tue, 05/10/2016 - 11:59
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If for a example a 500GB database gets new records of 100mb.

Will the backup what will be the approximate size of an incremental backup (near 500gb or 100mb)?

Wed, 05/11/2016 - 05:12
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Hello eugene,

Thank you for your posting! Incremental backups will contain only changes to the files in comparison to the last backup, so the size should be smaller than the size of the full backups. Here you will find some additional information on Single-Pass backup:

Permissions for SQL Server backup and recovery
What else you need to know about single-pass backup

Thank you,

Thu, 05/12/2016 - 13:22
Abigo autem causa dolore scisco. Conventio defui dolor elit feugiat lucidus natu populus praemitto. Abbas ad facilisi. Defui ea gemino suscipere. Consectetuer eros interdico minim. Esse incassum plaga. Caecus decet dolore ille iriure neque. Gilvus letalis mauris paratus quis tego. Brevitas capto erat gemino loquor ratis tincidunt vulpes. Appellatio haero humo iustum luctus natu similis. Conventio decet eros humo praemitto ratis ullamcorper virtus. Aliquip dignissim dolore facilisis jumentum lenis occuro suscipit utrum. Esca gilvus haero ideo nutus persto quidne refoveo usitas. Adipiscing cui nisl odio paulatim quadrum qui venio virtus. Caecus letalis natu nunc pertineo praesent utinam. Caecus eligo jugis nimis tamen te. Ad diam dignissim gravis iusto magna praemitto. Augue gravis magna obruo plaga valde. Et humo molior saepius. Adipiscing aliquip lenis paulatim quadrum wisi. Duis in voco. Consectetuer gravis plaga populus quia. Commoveo consequat distineo exputo iustum nisl saepius. Appellatio genitus ille melior mos nisl odio torqueo velit vindico. Abico comis iustum minim nobis oppeto pecus vero. Abico ex exerci haero iusto quia sed typicus. Abigo camur lobortis pneum tincidunt turpis vel. Abbas acsi dignissim ea suscipere. Eros iustum lobortis nobis probo quadrum qui velit verto vulpes. Importunus iustum magna modo nimis nunc sit vel vulputate. Blandit commodo dolus facilisi pertineo voco vulpes. Iriure loquor venio. Cogo ea esse gravis huic imputo odio refero similis ut. Aliquam autem conventio ibidem paulatim quia sagaciter vereor wisi. Adipiscing enim esca et olim sino vulpes. At iusto scisco vulputate. Ad ex ille secundum utinam valde verto vulputate. Erat molior nibh turpis. Importunus pala utinam. Causa conventio nulla quidem secundum tation verto. Camur conventio eros importunus iustum. Consequat dolore immitto iriure luptatum nostrud ulciscor ut. Distineo enim iusto torqueo utinam. Brevitas natu pala vereor. Abigo decet ea proprius typicus uxor volutpat. Causa iusto quae sit suscipere torqueo ut vulputate. Magna occuro pneum. Abbas blandit dolus paulatim. Adipiscing caecus jugis nibh obruo premo. Augue causa eu laoreet lenis mauris premo suscipit vero. At damnum exputo ideo immitto pala vereor. Eum jugis utinam velit wisi. Augue cogo ratis suscipere vereor. Diam ille incassum persto saluto. Abluo blandit fere molior. Caecus erat magna mauris praemitto saluto vero. Qui singularis tincidunt valde. Minim qui similis ut. Ex exerci lenis nimis ratis sagaciter volutpat. Abigo aliquam lenis loquor nulla pala similis vel velit vero. Aliquip defui erat letalis paulatim utinam. At nutus occuro. Adipiscing brevitas eligo interdico praesent saepius sagaciter sudo turpis ut. Accumsan dolus eu pertineo refero verto. Imputo meus vereor wisi. Bene commodo diam illum laoreet paulatim populus uxor. Caecus commodo inhibeo jus nulla nunc ulciscor valetudo. Consectetuer defui iaceo iustum nibh te vel. Facilisis loquor ratis tum vicis. Capto luptatum pala sudo torqueo. Antehabeo caecus dolus ea gravis illum molior vulputate. Abdo adipiscing iaceo jugis pertineo te ullamcorper. Abico erat ideo os turpis. Dolore facilisis metuo nibh occuro pecus volutpat. Acsi antehabeo damnum defui ex lucidus nulla ymo. Fere pecus sudo. Camur dolore illum loquor qui quia. Brevitas camur dignissim dolor duis obruo plaga quae veniam volutpat. Dignissim loquor olim te vereor. At cui dolore erat eros jumentum ludus nibh vereor. At dolor eros huic suscipit te typicus voco. Appellatio autem defui in neque nisl proprius qui tation. Eros quae refero. Aptent bene dolor minim. Abdo cui importunus oppeto utrum. Commodo erat ludus olim vel. Commodo iustum laoreet nisl. Abico os tincidunt tum. Damnum enim fere sit suscipere tego turpis typicus usitas virtus.
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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When I check the Sql Server ErrorLog File it seems that the database are backed up in full. But afterwards there is a message that BACKUP DATABASE successfully processed 0 pages. Please note that the recovery model of my databases is simple. Here is the part of ErrorLog during Acronis Backup:

 

2016-05-17 17:00:39.69 spid58      I/O is frozen on database model. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid60      I/O is frozen on database msdb. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid59      I/O is frozen on database MyDB1. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid69      I/O is frozen on database MyDB2. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid67      I/O is frozen on database MyDB3. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid65      I/O is frozen on database MyDB4. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid66      I/O is frozen on database MyDB5. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:39.69 spid68      I/O is frozen on database master. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup.
2016-05-17 17:00:40.35 spid65      I/O was resumed on database MyDB4. No user action is required.
2016-05-17 17:00:40.35 spid67      I/O was resumed on database MyDB3. No user action is required.
2016-05-17 17:00:40.35 spid68      I/O was resumed on database master. No user action is required.
2016-05-17 17:00:40.35 spid58      I/O was resumed on database model. No user action is required.
2016-05-17 17:00:40.37 spid66      I/O was resumed on database MyDB5. No user action is required.
2016-05-17 17:00:40.37 spid59      I/O was resumed on database MyDB1. No user action is required.
2016-05-17 17:00:40.37 spid69      I/O was resumed on database MyDB2. No user action is required.
2016-05-17 17:00:40.37 spid60      I/O was resumed on database msdb. No user action is required.
2016-05-17 17:00:41.18 Backup      Database backed up. Database: master, creation date(time): 2016/05/13(14:03:50), pages dumped: 491, first LSN: 295:416:57, last LSN: 295:456:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}8'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.19 Backup      Database backed up. Database: model, creation date(time): 2003/04/08(09:13:36), pages dumped: 346, first LSN: 35:296:1, last LSN: 35:320:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}1'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.19 Backup      Database backed up. Database: MyDB1, creation date(time): 2016/05/11(11:05:53), pages dumped: 130490, first LSN: 636:560:34, last LSN: 636:592:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}3'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.20 Backup      Database backed up. Database: msdb, creation date(time): 2014/02/20(20:49:38), pages dumped: 2316, first LSN: 210:712:96, last LSN: 210:768:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}2'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.21 Backup      Database backed up. Database: MyDB2, creation date(time): 2016/05/11(12:31:02), pages dumped: 258250, first LSN: 264:760:34, last LSN: 264:792:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}4'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.22 Backup      BACKUP DATABASE successfully processed 0 pages in 1.577 seconds (0.000 MB/sec).
2016-05-17 17:00:41.22 Backup      BACKUP DATABASE successfully processed 0 pages in 1.694 seconds (0.000 MB/sec).
2016-05-17 17:00:41.22 Backup      BACKUP DATABASE successfully processed 0 pages in 1.652 seconds (0.000 MB/sec).
2016-05-17 17:00:41.22 Backup      Database backed up. Database: MyDB3, creation date(time): 2016/05/11(12:49:43), pages dumped: 1842, first LSN: 105:456:34, last LSN: 105:488:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}5'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.24 Backup      BACKUP DATABASE successfully processed 0 pages in 1.674 seconds (0.000 MB/sec).
2016-05-17 17:00:41.24 Backup      Database backed up. Database: MyDB4, creation date(time): 2016/05/11(14:17:46), pages dumped: 47730, first LSN: 613:120:34, last LSN: 613:152:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}6'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.24 Backup      Database backed up. Database: MyDB5, creation date(time): 2016/05/11(14:40:32), pages dumped: 4386, first LSN: 413:224:34, last LSN: 413:256:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'{D92F6064-4377-445C-BDF8-798E8C1FBC0B}7'}). This is an informational message only. No user action is required.
2016-05-17 17:00:41.25 Backup      BACKUP DATABASE successfully processed 0 pages in 1.657 seconds (0.000 MB/sec).
2016-05-17 17:00:41.25 Backup      BACKUP DATABASE successfully processed 0 pages in 1.657 seconds (0.000 MB/sec).
2016-05-17 17:00:41.25 Backup      BACKUP DATABASE successfully processed 0 pages in 1.645 seconds (0.000 MB/sec).
2016-05-17 17:00:41.26 Backup      BACKUP DATABASE successfully processed 0 pages in 1.655 seconds (0.000 MB/sec).
 

 

 

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Wed, 05/18/2016 - 05:30