Some problems about iSCSI initiator 2.1.0
"謝志昌(Chih-Chang Hsieh)"
cch at kmu.edu.tw
Mon Jun 1 02:31:42 UTC 2009
Hello all,
We have tested 3 iSCSI targets with initiator 2.1.0 on FreeBSD 7.2-R:
1. Proware SB-3164E-G1A3 (da0: <proIPS__ SB-3164E-G1A3 1.0.> Fixed
Direct Access SCSI-4 device)
2. Infortrend ES-A12E-G2121 (da1: <IFT ES-A12E-G2121 361G> Fixed Direct
Access SCSI-5 device)
3. Promise VTrak M610i (da2: <Promise VTrak M610i 021D> Fixed Direct
Access SCSI-5 device)
Our tests are dd if=/dev/random of=${iSCSI_TARGET_DIR}/bigf bs=1024k
count=1000
and use iostat to see the I/O throughputs of each iSCSI targets.
The results are at http://free.cc.kmu.edu.tw/iscsi/iotest.txt
We see that the throughputs of Promise VTrak M610i are much more steady
than others.
(da2 is much steady than da0 and da1)
Could we tune something to make Proware SB-3164E-G1A3 and Infortrend
ES-A12E-G2121
more steady?
Our iSCSI initiator MIBs are http://free.cc.kmu.edu.tw/iscsi/iscsi-mibs.txt
Our FreeBSD 7.2-R dmesg is http://free.cc.kmu.edu.tw/iscsi/dmesg.txt
The iscsi.conf is http://free.cc.kmu.edu.tw/iscsi/iscsi-conf.txt
The iscontrol verbose messages are
http://free.cc.kmu.edu.tw/iscsi/iscontrol-v.txt
Thank you in advance.
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