Backups too fast (600 MB/s)

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Backups too fast (600 MB/s)

Veeam Logoby AlexLeadingEdge » Sun May 06, 2018 10:21 pm

Hi guys,

I'm seeing really weird numbers in our backup times which have me worried...

7/05/2018 10:02:53 a.m. :: Hard disk 1 (127.0 GB) 24.0 GB read at 481 MB/s (sent in 55 seconds)
7/05/2018 10:03:57 a.m. :: Hard disk 2 (200.0 GB) 12.0 GB read at 600 MB/s (sent in 3 minutes and 19 seconds)
7/05/2018 10:09:22 a.m. :: Hard disk 1 (127.0 GB) 98.9 GB read at 542 MB/s ( sent in 3 minutes and 10 seconds)
7/05/2018 10:13:59 a.m. :: Hard disk 1 (50.0 GB) 38.1 GB read at 413 MB/s ( sent in 1 minute and 36 seconds)

This isn't physically possible for the drives to read this fast, and definitely not possible to send that much data (24 GB in 55 seconds) across a simple Ethernet network. Is this some sort of metadata speed calculation that includes things like compression and white space? What is the point of these kinds of statistics?
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Re: Backups too fast (600 MB/s)

Veeam Logoby foggy » Mon May 07, 2018 3:50 pm

Is this an incremental job run?
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Re: Backups too fast (600 MB/s)

Veeam Logoby AlexLeadingEdge » Wed May 09, 2018 8:45 pm

Yes.
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Re: Backups too fast (600 MB/s)

Veeam Logoby foggy » Mon May 14, 2018 5:08 pm

Incremental runs are always significantly faster because they need to process only a few changed blocks, not the entire VMDK.
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