October 2006 Cutting Teeth on iSCSI Andy Loftus
10 Windows speeds ranged from 19MB/s to 78MB/s with an average of 42MB/s when using the HBA. The top speed is slightly less and the average is the s
11Looking Ahead This paper discussed setting up iSCSI on 1Gb/s Ethernet to compare performance of running an iSCSI initiator in software versus using
12Listing 1 – Iozone startup script #!/bin/ksh #===============================================================# # run_iozone - A wrapper script for
13Listing 2 – Test results raw output Linux – Software Initiator test results KB reclen write rewrite read reread 52
14 Linux – QLA4050c Initiator test results KB reclen write rewrite read reread 524288 8 92463 97493 13492
15 Windows – Software Initiator test results KB reclen write rewrite read reread 524288 2 33954 43644 6
16 Windows – QLA4050c Initiator test results KB reclen write rewrite read reread 524288 2 35459 45553 6
17Appendix A - Endnotes 1 QLogic Website: (http://www.qlogic.com) 2 Iozone Filesystem Benchmark (ht
2 Goals / Expectations ... 3 Environment...
3Goals / Expectations Having heard a lot about iSCSI but never used it or set it up, I wanted to learn more about it. As a storage manager, I wanted
4Initial Router Setup All router management tasks are performed through the QLogic SANsurfer Router Manager tool, available from the QLogic website1.
5the “Bound Volumes/Devices” tab. The drive letter of the formatted lun should show in the window. Router Lun Mapping The SANsurfer Router Manager s
6 The Linux results range from 29MB/s to 82MB/s (assuming the 4MB/s and 5MB/s values are atypical) with a calculated average of 37MB/s. The dip in t
7 On Windows, resulting speeds ranged from 18MB/s to 93MB/s (again, not counting the 5 and 6 MB/s values). The average speed is 42.8 MB/s. Similar
8user login on the console. The install instructions in the readme.txt file assume this. If using Remote Desktop, the “Add Hardware” wizard manuall
9Test Results – QLA4050c Initiator The test results on Linux using the HBA initiator range from 28MB/s to 106MB/s with an average of 45MB/s. The
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