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From Sonali Jadhav <>
Subject RE: Slow upload download on storage network
Date Wed, 18 Feb 2015 06:36:34 GMT
Hi somesh,

Thanks for reply. On  one linux vm which was on xenserver host, I just added one more interface
of storage network NIC. And mounted nfs on it. Downloaded iso from storage network on nfs
mount point. Same 4GB iso download was done in 8mins. What do you think could be problem?

I am using Xenserver 6.2 and bandwidth I have on storage network is 1000Mbit/s. 


-----Original Message-----
From: Somesh Naidu [] 
Sent: Tuesday, February 17, 2015 9:40 PM
Subject: RE: Slow upload download on storage network


What is hypervisor being used and what bandwidth do you have on your storage network?

Try mounting the secondary storage NFS share on a Linux box and check the network performance
when you copy a similar sized file. What throughput do you get?


-----Original Message-----
From: Sonali Jadhav [] 
Sent: Tuesday, February 17, 2015 7:26 AM
Subject: Slow upload download on storage network


I have observed that storage network operations are really slow. When I download any iso,
like just 4GB iso takes 4-5 Hrs. It's so weird. My secondary storage in nfs.
I felt since SSVM is mounting the secondary storage mount on ssvm and downloading iso from
there. That could be cause of slow network. So I even changed service offering for SSVM, and
gave more memory and cpu, it's still same.
I have configured Storage network for secondary storage traffic. So I am wondering what could
be problem, since there is dedicated nic on nfs server and xenserver host, so it should just

I am running CS 4.4.2 .


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