by Olivier Cozette
Table of content: |
First, don't hesitate to report me problems using this target, I will try to solve them.
You need at least 2GIB free on your hard drive to create a new hard drive image, if already have a disk image bigger than 2GiB it's no needed.
Under Linux, uncompress the olitarget_second_release.tar.gz and do "make all", and launch "olitarget -h olihd", "olihd" can be replaced by your disk image.
Under Windows get the "iscsi.exe" from the website. and launch "iscsi.exe -h olihd", "olihd" can be replaced by your disk image. If you want to access the iSCSI target from a remote node, you must allow iscsi.exe in your firewall rules. It's "start->config panel"->"windows firewall"->"allow program or feature through windows firewall"->"allow another program"->browse, select iscsi.exe, and click on "Add"->"Ok"
If you use Windows initiator, do "control panel" in "search control panel" type iscsi. Click on "set-up iscsi initiator". It can request that you enable iscsi initiator and/or reboot you PC, but answer "Yes" to all, and redo this clicks.
In targets (near "quick connect" button), give the IP of the target, it can be local target (127.0.0.1), remote windows target or remote Linux one.
Click quick connect. After many seconds, the target is displayed in "discovered target", if it is make as "active" click on connect.
Now, you have one more disk on your PC !
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scsi_transport_miniport_interface | scsi_command_interface | scsi_transport_interface | |||
iscsi_miniport | scsi_command_object | ||||
scsi_lu_task | scsi_lu_task | ||||
scsi_lu_persistent_reservation | scsi_lu_persistent_reservation | ||||
scsi_lu_spc | scsi_lu_spc | ||||
report_luns_well_known_unit | scsi_lu_sbc | ||||
sbc_miniport | |||||
scsi_lu_task | scsi_event | ||||
scsi_lu_persistent_reservation | scsi_os_api | ||||
scsi_lu_spc | |||||
scsi_lu_mmc | |||||
mmc_miniport | iscsi_listen |
The following code will show how the multiple component are glued. In this sample, a disk is associated with LUN 2 and the iscsi listen on port 3260.
The loop with dispatch process the asynchronous event.
scsi_command_object | ||
scsi_command_interface | scsi_transport_interface | |
scsi_lu_task | scsi_lu_task | scsi_transport_miniport_interface |
scsi_lu_persistent_reservation | scsi_lu_persistent_reservation | iscsi_miniport |
scsi_lu_spc | scsi_lu_spc | iscsi_listen |
report_luns_well_known_unit | scsi_lu_sbc | |
sbc_miniport |
int _tmain(int argc, _TCHAR* argv[]) { scsi_os_api event_class = scsi_os_api(2000); scsi_command_object command = scsi_command_object(event_class); sbc_miniport sbc = sbc_miniport(event_class, "olihd"); iscsi_listen listen = iscsi_listen(&event_class, 3260, &command, 2048*1024); command.register_command_miniport(&sbc, 2); while (event_class.dispatch()) { } } |
The test of scsi_lu_task
scsi_lu_task | scsi_command_interface | scsi_transport_interfacescsi_event | scsi_event | |||
test_lu_task | test_lu | test_iscsi_event | ||||
object |
Lines covered | % lines covered | |||
mmc_miniport scsi_lu_mmc report_luns_well_known_logical_unit scsi_lu_persistent_reservation sbc_miniport scsi_lu_sbc scsi_lu_spc iscsi_miniport_session iscsi_listen scsi_command_object scsi_os_api scsi_buffer_containner scsi_lu_task scsi_list scsi_list_container scsi_buffer_t link_list_t scsi_event |
0 0 20 105 17 59 197 502 24 51 389 22 305 44 35 109 72 20 |
0,00 % 0,00 % 29,41 % 40,08 % 47,22 % 51,30 % 54,12 % 65,11 % 68,57 % 78,46 % 79,39 % 84,62 % 90,24 % 91,67 % 94,59 % 95,61 % 98,63 % 100,00 % |
object |
Lines covered | % lines covered | |||
mmc_miniport scsi_lu_mmc sbc_miniport scsi_lu_sbc scsi_lu_spc scsi_lu_persistent_reservation iscsi_miniport_session iscsi_listen scsi_os_api report_luns_well_known_logical_unit scsi_command_object scsi_buffer_containner scsi_lu_task scsi_list_container scsi_buffer_t link_list_t scsi_event scsi_list |
0 0 17 74 198 157 522 24 397 56 78 22 337 35 109 71 20 43 |
00,00 % 0,00 % 38,64 % 50,68 % 53,51 % 57,93 % 67,79 % 68,57 % 80,20 % 82,35 % 83,87 % 84,62 % 89,39 % 94,59 % 95,61 % 100,00 % 100,00 % 100,00 % |
Callgrind result (linux) after scsi compliance test:
Microsoft scsi compliance test from wlk against commit revision #33 (second release), the test have exactly the same result with olitarget running under Linux or WIndows. The tests have been done with the olitarget Windows (Windows 7) and olitarget Linux (Ubuntu 9.10 x64).
SCSI Compliance Test Version 1.3.7 A Copyright (c) 2003-2005 Microsoft Corporation [...] =============================================================================== Command Total Pass Warn Fail INQUIRY 19 14 3 2 MODE SENSE (6) 14 14 0 0 MODE SENSE (10) 6 6 0 0 MODE SELECT (6) 14 14 0 0 MODE SELECT (10) 14 13 1 0 READ (6) 4 4 0 0 READ (10) 4 4 0 0 READ (16) 5 5 0 0 READ CAPACITY 1 1 0 0 REQUEST SENSE 3 3 0 0 RESERVE (6) 0 0 0 0 RELEASE (6) 0 0 0 0 REPORT LUNS 3 3 0 0 PERSISTENT RESERVE 28 28 0 0 MULTI-INITIATOR 9 6 1 2 =============================================================================== |
SCSI Compliance Test Version 1.3.7 A Copyright (c) 2003-2005 Microsoft Corporation [...] =============================================================================== Command Total Pass Warn Fail INQUIRY 19 18 1 0 MODE SENSE (6) 14 14 0 0 MODE SENSE (10) 6 6 0 0 MODE SELECT (6) 14 13 1 0 MODE SELECT (10) 14 14 0 0 READ (6) 4 4 0 0 READ (10) 4 4 0 0 READ (16) 5 5 0 0 READ CAPACITY 1 1 0 0 REQUEST SENSE 3 3 0 0 WRITE (6) 5 5 0 0 WRITE (10) 6 6 0 0 WRITE (16) 6 6 0 0 RESERVE (6) 0 0 0 0 RELEASE (6) 0 0 0 0 REPORT LUNS 3 3 0 0 PERSISTENT RESERVE 28 28 0 0 MULTI-INITIATOR 9 9 0 0 ============================================================================== |
I worked in distributed storage and systems in R&D. I have worked with both Linux and Windows at system level (multithread/network/Infiniband verbs) and kernel level (file systems, add functionalities, storage driver).
I love discovering new technologies like Virtual Storport, PCI-E MR-IOV/SR-IOV, last SCSI advancement, virtualization (hardware like VT and software), new processor instruction set and developing software (user and/or kernel). And I like to get best of these technologies to increase speed or add features to a product.
If you need to contact me, you could leave a mail at olivier.m.cozette@gmail.com or by linkedin http://www.linkedin.com/in/oliviercozette