CIFS share not crossing 4 Gbps speed [with in 10 Gbps environment]

[venkata]

Dear all,

We are using FreeNAS 9.10-2-U1.

Our FreeNAS contains,
CPU- 4 core Intel Xeon
RAM: 32 GB
Hard Disks: 3 x 1 TB SSD [RAIDZ1]
OS Disk: 1 TB SSD
NIC: 2 x 10 Gig

Client [Win8] Machine has same spec, except hard disks [only one 1 TB SSD].
We connected client machine and FreeNAS back to back with 10 Gig patch cable.

When we did read testing from freeNAS [Downloading data from FreeNAS],
1. When we connected single patch cable , bandwidth is 4 Gbps
2. But when we connected two patch cables, again bandwidth is 2 x 4Gbps. [total 8 Gbps]
When we did write testing on freeNAS [upload data into FreeNAS],
1. When single patch cable, bandwidth is 1.4 Gbps
2. But when we connected two patch cables, again bandwidth is 2 x 1.4 Gbps. [total 2.8 Gbps]

We are unable to understand, why single patch cable exactly holding 4 Gbps speed [read] & 1.4 Gbps [write].
Please share us some inputs to achieve 10 Gbps speed.

 

[snaptec]

Please make an iperf test to check line speed.
Did you have a look at the CPU load?


Gesendet von iPhone mit Tapatalk

 

[venkata]

Please make an iperf test to check line speed.
Did you have a look at the CPU load?


Gesendet von iPhone mit Tapatalk

CPU load was below 40%, Swap usage 0% - during my testing...

Please suggest me "iperf " with freeNAS related details...

 

[snaptec]

Logon on the Freenas through SSH or open a shell in the web gui.

Execute
iperf -s

On your client system execute

Code:

iperf -c IPoffFreeNas

.

Copy the results.

Do the same for the other direction.

ClientMachine runs iperf -s and on the FreeNas side

Code:

iperf -c IPoffClient

I don't know what to do on Windows side. Just use Linux/Unix all day. Google may help