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EMC UNITY NFS Performance issue while CIFS working fine
Hello ALL,
We have EMC Unity into the enviorment and having LACP configured on both the SPA/SPB. While accessing the NFS/CIFS from via the same SP. CIFS is giving the 280 MB/s where as NFS is only giving the 40 MB/s. Please suggest whether it is firmware bug with 4.2.0 or something else.
Rainer_EMC
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November 21st, 2017 08:00
difficult to say
upgrade to the latest available VNX OE
test without LACP to rule out network
if that doesnt help I would suggest to open a service request
ravikhetawat
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November 22nd, 2017 00:00
How we can fine tune the enviroment and if it would be the network we should face the issue with CIFS as well.
Rainer_EMC
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November 22nd, 2017 02:00
not necessarily - NFS could use different ports/paths
Also NFS acts differently to network problems like packet loss
could also be a difference in which tools you use to test
or an issue with NFS client code or config
you could increase the nfs xfersize param for a start
ravikhetawat
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November 24th, 2017 00:00
We have very strange situation where read and write performance for cifs is good but only during write for NFS is taking time.
Do we have any optimization guide for Linux os....As soon as we star writing for 3 sec speed is 110 mb than it get down to 40 mb..Can anyone help
Rainer_EMC
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November 30th, 2017 01:00
look at the network - esp. I/O errors and retransmissions
or open a SR with customer service
Zoltan Vasvari
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April 4th, 2024 11:25
Hello,
What was the solution here?
DELL-Sam L
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April 4th, 2024 14:09
Hello Zoltan Vasvari,
If you are running the latest OE for your system, then it is best to open a support case for your issue so that we can look into your performance issue.