2002 - cesnet

Figure 16.3: Nishan–Linux measurement resultsA detailed description of all measurements performed and our experiencerelating to the Nishan IPS3300 device can be found in the CESNET technicalreport No. 12/2002.16.2.3 Cisco–LinuxThe target in the third test series was represented by the Cisco SN 5428 commercialdevice connected with the Fortra disk array. A PC with the Linux operatingsystem was used as the initiator. The Cisco SN 5420 and 5428 devicessupport iSCSI in accordance with the IETF draft version eight.Performance Characteristics MeasurementsThe measurements were done using the iozone program with the following parameters:(output to a binary file in the MS Excel format, with the minimum andmaximum file size of 3 GB, utilizing the close( ) function and automatic measurement,with transferred block sizes from 4 kB to 16 MB)iozone -Rb iscsi.wks -n 3g -g 3g -z -c -a -i 0 -i 1Practical ExperienceWe had to replace the SN 5428 firmware with the version 2.3.1.3-K9, since theoriginally provided firmware version 2.3.1 caused inconsistent results in therepeated reading speed tests.High-speed National Research Network and its New Applications 2002179