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olekl
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Full Name: Oleksandr Lotokhov
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Restful API - restore mailbox as .pst for big mailboxes

Post by olekl »

The issue/question is related to this API call: https://helpcenter.veeam.com/docs/vbo36 ... tml?ver=40

In case mailbox is big (let's say, 40 GB - for enterprise mailbox it is quite usual) the exported .pst is preparing during hours on VBO, and then it is transferred back via http response in one piece.

Even if you set EnablePstSizeLimit to True, all pieces of .pst are archived to one file before sending back, so you still have transfer of one big piece.

And I don't thing that transfer of 40GB which is trying during hours without any progress indicator and without possibility to restart in case of any network issues is a good idea.

So the question: what is the expected way to do a restore big mailbox as .pst?

Support ticket: Case #04190048

nielsengelen
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Full Name: Niels Engelen
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Re: Restful API - restore mailbox as .pst for big mailboxes

Post by nielsengelen »

Hi Oleksandr, it is true that via the API call, the process runs in the background. If you want to benefit from it, you will need to build a sort of download handler which starts the export in the background and lets the user of the portal/tool know once it is done. You could consider storing it in a s3 bucket or something as a temporary location.
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olekl
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Posts: 3
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Joined: May 11, 2020 5:30 pm
Full Name: Oleksandr Lotokhov
Contact:

Re: Restful API - restore mailbox as .pst for big mailboxes

Post by olekl »

Yes, it already runs in the background and user is informed when it is finished. There are two issues: 1. we can't estimate time of waiting (it could be 20 hours or more) and 2. we can't restart it in case of any network interruption (40 GB+ transfer without restart option could never succeed).

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