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The best way to test Linux ISCSI IOPs on Nimble?

Question asked by franku on Apr 10, 2013
Latest reply on Apr 23, 2013 by franku

Hi All,

 

We use Debian Squeeze Linux and Ubuntu 12.04 (both 64 bit/multiarch), and connect to our nimble via ISCSI multipathing. (2 x Gbit FD)

The program i used to test the performance of the Nimble on Linux is: fio (flexible io tester)

 

to start it i use a definition file from IOmeter, eg:

fio iometer-file-access-server

content of that file:

 

[global]
description=Emulation of Intel IOmeter File Server Access Pattern

[iometer]
bssplit=8k/100
rw=randrw
rwmixread=50
direct=1
size=44g
ioengine=libaio
# IOMeter defines the server loads as the following:
# iodepth=1     Linear
# iodepth=4     Very Light
# iodepth=8     Light
# iodepth=64    Moderate
# iodepth=256   Heavy
iodepth=32

 

This gives us 15 K IOPS read and 15K  IOPS write.

 

Does anyone have other programs to test this ? Any hints are welcome.

 

Regards,

Frank Uittenbosch

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