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Replication and full tape syndrom

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Forum Member
Posts: 16
Comments: 32

Another battle with Acronis Cyber Backup and it's implementation of replication to tape:

The backups on the weekly tape are gone according to the retention rule (and if I click Show backups, there are not any). But the tape is shown as full, and as soon as the replication task attempts to write more content the tape is ejected, which is especially nasty since it does not allow to fix the issue through remote management. (The other nasty point is that I cannot tell the software to eject the tape after successfully completing a replication job, not even define a job do perform that at a given time. But in my opinion, if something works manually it should be configurable in a task as well.)

The overwrite single tapes feature for backups seems not to work for replication tasks.

Questions:

How can I tell Acronis Backup not to eject a tape if its full?

How can I suppress this "full tape" behavior besides manually moving the tape to the free media pool?

Best greetings from Germany
Olaf

1 Users found this helpful
Forum Support specialist
Posts: 0
Comments: 2016

Hello Olaf,

thank you for posting on Acronis forums!

The tape can be reused automatically if and only if all the recovery points that are stored on this tape are marked for deletion and there are no other recovery points that may require the backups from the tapes to restore. For example, the tape can contain a full backup that is required to restore the incremental backups on other tapes.

Besides that, the retention rules cannot automatically delete the last backup if even it should be deleted. The last backup can be deleted manually.

Regarding the ejected tape, the default tape option to eject the tape is set up as disabled. It can be changed in Tape Management. Besides that, the default option to move the tape back to the tape slot is enabled. Please check the default tape management.

If the question is not addressed, can you please create and share screenshots showing the backups/tape configuration/information about tape devices and so on. Please also let us know the exact content of the tape and check if there can be other backups on other tapes that still require old backups to restore.

Forum Member
Posts: 16
Comments: 32

Hi Maria,

on each tape of the daily backup set a full backup is created. The task is set to keep the backups for 6 days.

However, even if there are only deleted backups on that tape, the job will fail to overwrite the tape and eject the media, if the assumed consumed size and the backup size are going over the capacity.

This is a replication job and the settings for tape handling do not apply for those as it seems.

The only functional method is to move the tape to the free media pool - but is there any way do perform this automatically (acrocmd or a scheduled acronis task)?

Best greetings from Germany
Olaf

Forum Support specialist
Posts: 0
Comments: 2016

Hello Olaf.

The only functional method is to move the tape to the free media pool - but is there any way do perform this automatically (acrocmd or a scheduled acronis task)?

Please use the following undocumented commands:

acrocmd list tape pools -> to know the tape pool GUID
acrocmd list tapes -> to know the GUID of the tape
acrocmd change tape_pool -> to move

for more info about each command please issue:

acrocmd help command (with all spaces) -> info about this command
acrocmd help --full -> info about all undocumented commands

This is a replication job and the settings for tape handling do not apply for those as it seems.

I should note that the latest Update 2 has many improvements in this area, so I advise that you test it in your environment.

Forum Member
Posts: 16
Comments: 32

Hi Maria,

thanks. Sounds like a good idea but it seems I stumble from block to block.

First syntax error, easy to solve - it's

acrocmd list tape_pools --output=raw

to get the command run (I don't see the underscore in your example) and to get the GUID in readable format.

The second one: acrocmd list tapes - here I am stuck now, since it shows nothing besides a success message.

 

As of now, update 2 has solved not a single of my issues with Acronis Cyber Backup, but created a bunch more on customer systems, which were working well before (especially regarding replication plan schedules, which do randomly no longer run).

Meanwhile this is the most frustrating commercial product experience for me in a long life in IT administration, stealing my time and nerves and the customers money for the services needed to solve their backup issues.

Best greetings from Germany
Olaf

Forum Support specialist
Posts: 0
Comments: 2016

Hello Olaf.

First syntax error, easy to solve - it's

acrocmd list tape_pools --output=raw

Yes, you are correct, the syntax should be list tape_pools

The second one: acrocmd list tapes - here I am stuck now, since it shows nothing besides a success message.

That is what I warned you about not documented commands. However, you can also try list tape_drives and list tape_libraries.

As of now, update 2 has solved not a single of my issues with Acronis Cyber Backup, but created a bunch more on customer systems, which were working well before (especially regarding replication plan schedules, which do randomly no longer run).

The new multistream writing to tapes and auto inventory features are released in Update 2.