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CBS server 7.15.2.24 just deleted over 20TB of backup data

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CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby JasonEde » Wed Mar 14, 2018 5:20 pm

We've recently upgraded to 7.15.2.24

We have a ticket open on this, but yesterday at 6am around 20TB of data just disappeared off our CBS server. No-one was on the server at the time (logs confirm this) so it looks like it might have been part of the CBS housekeeping gone awry... Will post back when I hear an explanation of what has happened.
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby JasonEde » Thu Mar 15, 2018 4:41 pm

It looks like there is an unexpected mode of operation that caused this. Ahsay is producing a hotfix for the issue. Contact their support if you want more details on this issue.
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby lharmer » Thu Mar 15, 2018 11:38 pm

Are you able to share more details on this and whether Ahsay's hotfix resolves the issue?
Is there specific circumstances or setup which triggered it?

We were just about to upgrade one of our servers before we spotted this!
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby JasonEde » Fri Mar 16, 2018 12:25 am

I don't think it's right to share more, given the nature of the problem, but from what I know I think it will affect all versions of 7. I'm unable to test the patch at the moment.
If you want more information contact Ahsay support about hotfix for #20663 and whether it will affect you or not.
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby ANSOCF » Tue Mar 27, 2018 11:51 am

What was the outcome of this ticket? Want to make sure this bug has been fully fixed and understand what versions of ahsay 7 it affected and what is the unexpected mode of operation that occurred? With this serious of a bug a statement should be privately made to all partners if this scenario is possible it should be proactively prevented as soon as technically possible.

At this point in time it looks like more than a week has gone by and no update as of yet
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby JasonEde » Tue Mar 27, 2018 7:23 pm

There is a hotfix available for the issue. If you contact support referencing the hotfix number above they will give you more info.
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby ANSOCF » Wed Apr 04, 2018 2:58 am

Ahsay support has this fix been included in the latest version released 7.15.4.10?
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby Richard Au » Wed Apr 04, 2018 10:21 am

Hi All,

The latest v7.15.4.10 has fixed the mentioned issue in this post.

Release notes:
http://ahsay-dn.ahsay.com/document/v7/7 ... -notes.htm
7. Bug fix - Data is incorrectly removed in userhome when there are trial backup users with empty username (ref: T-20838)

Please note that this issue will only be happened when you have "Remove User x days after registration" enabled in "Free Trial Options" with a empty trial user name created accidentally.
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Re: CBS server 7.15.2.24 just deleted over 20TB of backup data

Postby ANSOCF » Thu Apr 05, 2018 11:24 am

Ok thank you for sharing that detail Richard. This makes more sense now.

I am not as concerned anymore if this only affected trial based users.
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