overwriting previous backup when backing up several VMs?

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Forum Member
Posts: 18
Comments: 26

I want to create a backup job that always overwrites the previous job before starting the backup. When backing up a single physical server I can accomplish this by choosing the option that says "Name backup files using the archive name, as in Acronis True Image Echo, rather than auto-generated names".

However, when creating a backup job that backs up multiple Hyper-V VMs that option is not available. I tried adding a retention policy saying when the archive is greater than 1GB to delete the oldest backup but it does not seem to work. The backup is a day old so I can't say to delete it if it's over a day old.

Is there any way to achieve what I want to do? It seems there needs to be retention policy rules based on hours (not days) and also an option that says if number of backups in the archive exceeds 0.

Thanks

Mon, 04/27/2015 - 15:36
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Posts: 22
Comments: 3800

Hi,

There is a protection logic implemented in the clean up procedure: you can specify retention rules to perform clean up when number of backups exceed 1 - in this case the following happens (if you define the clean up rules to be applied before AND after backup):

1) Upon 1st run the backup1.tib will be generated
2) Upon 2nd run the backup2.tib will be generated and in the end of the 2nd run the backup1.tib will be deleted. So at the moment when the backup runs you'll need to have free space sufficient to keep 2 full backups in the location, but in the end there will be only 1 backup left (space for 1 full is required)

This is done to protect user from ending up with no backups in case something goes wrong during backup, i.e. there is _always_ at least one valid backup present in the location which is not removed.

If the above scheme (I've attached a screen shot showing the settings for it) doesn't meet your needs then the only solution would be to run some script (via pre/post commands or Windows scheduler) before the backup task is about to start. This script should clean up the target backup location ("del" command). After that there will be no need to define any retention rules in the backup settings (each time there will be a new full backup generated).

Thank you.
--
Best regards,
Vasily
Acronis Virtualization Program Manager

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Tue, 04/28/2015 - 08:48
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Forum Member
Posts: 18
Comments: 26

I see. I suggest considering a change to this. Users should have ultimate control. For example in the case of rotating USB drives there is a previous backup stored elsewhere. Forcing a user to create a script could make things even worse if they are not careful.

Trying to protect users from themselves only creates unnecessary limits for those who know what they're doing.

Tue, 04/28/2015 - 11:20
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
frestogaslorastaswastavewroviwroclolacorashibushurutraciwrubrishabenichikucrijorejenufrilomuwrigaslowrikejawrachosleratiswurelaseriprouobrunoviswosuthitribrepakotritopislivadrauibretisetewrapenuwrapi
Posts: 22
Comments: 3800

Hi,

Yes, we do consider such cases and try to handle them separately (that is why there was simplified naming scheme added). We're planning to extend the number of use cases with rotating USB drives in the next version to make it as transparent as possible.

Edit: Acronis internal task ID for reference is ABR-60036

Thank you.
--
Best regards,
Vasily
Acronis Virtualization Program Manager

Tue, 04/28/2015 - 11:26
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.