Qlogic QLA4050C Manuel d'utilisateur

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