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DavoudTeimouri
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Direct Storage Access is too slow

Post by DavoudTeimouri » Aug 28, 2019 6:20 am

Hi,
I have problem with our physical proxy, SAN is to slow during backup, 1 MB/s!
Here is the server specifications:
HPE DL380 G9
E5-2697v4
256 GB
2 x HBA
2 x 10 Gb (NIC)
-------------------------
Veeam Backup & Replication 9.5 U4a
-------------------------
vSphere 6 U3

I did the following:
Change OS from Win2016 to Win2012
Change ReFS to NTFS
Update FW and drives and ...

There is no problem with SAN storage because network mode will work at 300 MB/s at least.
Best Regards

myFist
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Re: Direct Storage Access is too slow

Post by myFist » Aug 28, 2019 9:49 am

Did you already try to serve a test-lun to the physical proxy? And tried some perfomance tests?

DavoudTeimouri
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Re: Direct Storage Access is too slow

Post by DavoudTeimouri » Aug 28, 2019 11:30 am 3 people like this post

Issue was related to physical connectivity. Errors were same on SAN switches ports but after disable ports one by one, we could detect problematic port.
SFP has been changed and issue has been resolved.
Best Regards

Gostev
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Re: Direct Storage Access is too slow

Post by Gostev » Sep 01, 2019 9:07 pm

Thanks for coming back to share the root cause!

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