What is the maximum practical size for an Exchange 2016 database

Exchange 2016 database size limits at what point would you say it's too large
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AmitIT ArchitectCommented:
Your question can be answered in two parts: 1) Technical limitation 2) Business limitation or SLA

1) Technical limitation.
Standard edition, you have 1 TB limit
Enterprise, there is no limit. Until your hardware can support it.

2) SLA limitation: How long you can afford downtime, in case you need to restore database.

In short, as per my experience 500GB is an ideal size for DB.

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Edward van BiljonMessaging and Collaboration Technical Lead (Exchange MVP)Commented:

I would try keep your databases smallish, bigger than 1TB will mean longer time to recover or repair.
Michael B. SmithManaging ConsultantCommented:
The physical limitation is slightly less than 16 TB.

Microsoft suggests that, at max, you limit at 2 TB (as they do in Office 365).

But the real question is about BACKUPS. Do you keep 4 copies of data, as MSFT does in Office 365?

If not, your copies need to be a lot smaller.
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