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EricinIT
Service Provider
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Full Name: Eric Henke
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Veeam Backup for M365 Restore Speed

Post by EricinIT »

I have a customer doing multiple M365 mailbox restores of specific days for a few hundred users to pst format. This pst format is a requirement from their legal team. The M365 backups are stored in S3 buckets offsite (Wasabi). The restore process takes a few hours per user even though it's only a few days of data per user. Looking at the resource utilization, nothing seems to be maxing out including bandwidth which is almost nothing during the whole restore process. There are no errors and the restores complete successfully, just slowly. In the log, it appears to just be enumerating all the data slowly to determine what needs to be downloaded into the pst.

Does anyone have any suggestions to speed up the process?

Eric
Polina
Veeam Software
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Full Name: Polina Vasileva
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Re: Veeam Backup for M365 Restore Speed

Post by Polina »

Hi Eric,

Unfortunately, I cannot suggest any magic to improve it right now, but for the future, we're looking at how to make exports more efficient and faster. No promises yet, but I do hope that we're succeed in optimizing it in the next versions.
EricinIT
Service Provider
Posts: 110
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Joined: Dec 16, 2020 7:03 pm
Full Name: Eric Henke
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Re: Veeam Backup for M365 Restore Speed

Post by EricinIT »

Ok, thanks.

Eric
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