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Connecting to an iSCSI Device using iscsiadm

Important:

The

iscsiadm

command may require root privileges to function.

This guide will assume that the user has root privileges.

Discovering iSCSI Targets

To get a list of available targets on the Gateway, run a discovery using the following command:

iscsiadm -m discovery -t st -p <Target IP Address>:<Port Number>

An example of this is shown below when performing a discovery on a target with the IP address
10.0.0.68 on port 3260.

When the command is run, you should see a list of available targets as shown below:

76

Содержание Oresund EFC102200

Страница 1: ...Oresund EFC102200 iSCSI to FC Gateway User Manual Eli v4 05 204 Bridgeworks Unit 1 Aero Centre Ampress Lane Ampress Park Lymington Hampshire SO41 8LW Tel 44 0 1590 615 444 Email support 4bridgeworks com ...

Страница 2: ...ay end 10Gb Ethernet Cable Depending on the configuration you have purchased you will require at least one cable from either EFC102200RM OPT Multi mode Optical Fibre Cable SFP Multi mode Optical Fibre 50 125 OM3 Patch Cable LC up to 300 meters Multi mode Optical Fibre 50 125 OM4 Patch Cable LC up to 550 meters Or EFC102200RM TCX 1 Copper Interface Cable SFP A SFP Direct Attached Twin Ax Copper int...

Страница 3: ... Cables 13 2 2 1 Using a Multi mode Optical Fibre Cable SFP 13 2 2 2 Using a Copper Interface Cable SFP 14 2 2 3 Using a 10GBASE T Category 6 Cable RJ45 15 2 3 Connecting the Fibre Channel Interface 15 2 4 Connecting the Power Supply 16 3 Using the Web Interface 18 3 1 Browsers 18 3 2 Connecting to the Web Interface 18 3 3 Management Console Home screen 20 4 Gateway Configuration 21 4 1 Network Co...

Страница 4: ...nternet Storage Name Service iSNS 28 5 iSCSI Target Configuration 30 5 1 Authorisation CHAP 30 5 2 Network Interfaces 31 5 3 iSCSI Sessions 31 6 Fibre Channel Initiator Connections 33 7 SCSI Device Management 36 7 1 Viewing Attached Devices 36 7 2 Viewing Device Mappings 37 8 Gateway Maintenance 39 8 1 System Information 39 8 2 System Log 40 8 3 Load Save Configuration 41 8 3 1 Saving the Configur...

Страница 5: ...ing LAN Scan 54 Appendix A Accessing the Gateway from Windows using a static IP Address 55 A 1 Windows Server 2003 55 A 2 Windows Vista Server 2008 or 7 58 Appendix B Connecting to an iSCSI Device using the Microsoft iSCSI Initiator 61 B 1 General Set up 61 B 2 Discovery of Devices 62 B 2 1 Adding an iSCSI Target Portal 63 B 2 2 Adding an iSNS Server 65 B 3 Connecting to a Target 66 B 4 Viewing iS...

Страница 6: ...C 1 Discovering iSCSI Targets 76 C 2 Logging into a target 77 C 3 Logging out of a target 79 C 4 Logging out of all targets 80 Appendix D Useful Links 82 Appendix E Technical Specifications 83 6 ...

Страница 7: ...Introduction Thank you for purchasing the Bridgeworks Oresund EFC102200 iSCSI to Fibre Channel Gateway 7 ...

Страница 8: ...to communicate with it With iSCSI devices both targets and initiators an extra level of identification in addition to the IP address is employed This is called the IQN The IQN includes the iSCSI Target s name and an identifier for the shared iSCSI device Example 2002 12 com 4bridgeworks sdt600a014d10 5 CHAP CHAP is an authentication scheme used by Servers to validate the identity of clients and vi...

Страница 9: ...I Bus is reserved by the Server s Host Bus Adaptor Logical Unit Number LUN Each SCSI device on the SCSI bus can support sub devices These are called LUNs Within the iSCSI Connect Bridge each SCSI ID on the SCSI bus can support 7 LUNs 9 ...

Страница 10: ...echnician To prevent electric shock do not remove the cover There are no user serviceable parts inside The power cord is used as a disconnection device To de energise the equipment disconnect the power cord Do not use the equipment where it can get wet Protect equipment from liquid intrusion If your equipment gets wet disconnect power to the equipment and to any attached devices If the Gateway is ...

Страница 11: ...t Certain models will use a Small Form factor Pluggable SFP Transceiver module for connection to an optical network These devices may use a Class 1 Laser device it is important that you do not stare into the Laser beam 11 ...

Страница 12: ...ASE T Gigabit It is not necessary to specify which network type you are connected to as the EFC102200 will automatically select the correct network speed The connection to the management Ethernet network can be found at the back of the EFC102200 labelled MGMT A and MGMT B To connect the EFC102200 to the management Ethernet network insert a Cat 5E cable or better into one of the MGMT ports at the b...

Страница 13: ... Multi mode Optical Fibre Cable SFP EFC102200RM TCX 1 Copper Interface Cable SFP Using a Multi mode Optical Fibre Cable SFP If you have purchased a 10Gb card with the SFP s already connected the following cables may be used Multi mode Optical Fibre 50 125 OM3 Patch Cable LC up to 300 meters Multi mode Optical Fibre 50 125 OM4 Patch Cable LC up to 550 meters To connect the EFC102200 to an Ethernet ...

Страница 14: ... Cable SFP If you are using a copper based solution an SFP Direct Attached Copper DAC Twin Ax interface cable must be used the maximum supported length of which is a 5 meter passive cable To connect the Gateway directly to a device insert one or two SFP cables in to the connector as shown below When the plug is connected a click should be heard 14 ...

Страница 15: ...t the back of the unit When the plug is in the correct position a click should be heard Connect the other side of the cable to your Ethernet network or device Connecting the Fibre Channel Interface With a 8Gb Fibre Channel card installed the EFC102200 may utilise the following link speeds 2GB 4GB 8GB It is not necessary to specify which link speed you are using as the EFC102200 will automatically ...

Страница 16: ... Patch Cable LC up to 300 meters Multi mode Optical Fibre 50 125 OM4 Patch Cable LC up to 550 meters When the multi mode cables are inserted in to the SFP a click should be heard Connecting the Power Supply Important Before connecting the power cord ensure that the wall or rack plug is removed or is switched off Connect the power cord to the rear of the EFC102200 as shown in the following image 16...

Страница 17: ...nd that you have connected a Management port to your network To turn on the EFC102200 push the switch on the opposite side to the power connector The following image shows the switch Whenever the EFC102200 is powered on the switch will be illuminated in the colour green and system fans will be easily heard 17 ...

Страница 18: ...ose to use a browser that is not in the list of supported browsers Bridgeworks cannot guarantee the behaviour of the Gateway s functionality Connecting to the Web Interface Note DHCP is enabled by default on the management interface The default hostname is bridgeworks The default static IP address of the management interfaces are Management A left hand interface 10 10 10 10 Management B right hand...

Страница 19: ...or help with accessing the Gateway web interface without DHCP From within your web browser connect to the Gateway s web interface using default hostname or IP address of a connected management interface Once you have connected to the web interface on the Gateway you will see the entry page shown below Enter and confirm the new web interface password to be presented with the login screen The passwo...

Страница 20: ... logout of the web interface The Home link may be used from any page to return to the Home screen Note Whenever a Reboot command is issued it may take several minutes for the Gateway to become accessible again The Support link will open up a new tab in your browser at the Bridgeworks website support page The Help is contextually aware of which page you are currently viewing on the web interface an...

Страница 21: ...service settings Network Connections This configuration page allows the administrator to configure network interface settings and view network statistics From the Home screen select the Network Connections icon under the Bridge Configuration section The web interface will display the following 21 ...

Страница 22: ...enabled management interface Enable IPv6 Selecting the Enable IPv6 checkbox will enable the Gateway to use IPv6 addresses As with IPv4 you can either choose to use DHCP or assign a static IPv6 address Network Interfaces This section displays each network port present on the Gateway along with its current status link speed and hardware identifier MAC address To change the settings of a specific net...

Страница 23: ... bytes of payload MTU Before enabling jumbo frames ensure that all the devices hosts located on the network support the jumbo frame size that you intend to use to communicate with the Gateway If you experience network related problems while using jumbo frames use a smaller jumbo frame size Consult your networking equipment documentation for additional instructions 23 ...

Страница 24: ...tic IP The IP address netmask and gateway set in the corresponding fields will be used for this port The gateway field may be left blank The IPv4 netmask field must be specified in dotted decimal form e g 255 255 255 0 If IPv6 is enabled from the Network Connections page you can choose to use DHCP to automatically assign an IPv6 address or you can set a static IPv6 address If you choose to assign ...

Страница 25: ...sting password into the Old Password field then enter the desired new password into the two following fields Then click Change Password Secure Connection To enable HTTPS select the Use an encrypted web connection radio button and click Save You will be logged out of the Gateway s web interface and further transactions with the web interface will use SSL TLS encryption Note By default an HTTPS cert...

Страница 26: ...load the key pair as two separate files or one combined file Service Control This configuration page allows the administrator to configure network services for the Gateway From the Home screen select the Service Control icon under the Bridge Configuration section The web interface will display the following 26 ...

Страница 27: ...o determine when an event occurred Refer to Section 8 2 System Log for more information To enable SNTP select the Use NTP checkbox and enter the IP address for the NTP Server Then click Save Event Notification Email The Gateway can notify a systems administrator when events of a certain urgency occur in the Gateway log Before this can be done SMTP settings must be saved Refer to Section 4 3 3 27 ...

Страница 28: ...col SMTP This section allows an SMTP server to be configured to send emails on behalf of the Gateway The fields in this subsection are SMTP Server To enable an SMTP server enter its IP address or hostname in this field It must be reachable from the Gateway s Management interface or whichever port the default route is set to on this address Sender Email Address The address from which emails will be...

Страница 29: ...To enable this feature select Use iSNS and enter the IP address or hostname of the iSNS Server with which to register in the iSNS Server field Then click Save to apply changes 29 ...

Страница 30: ...n authentication scheme used by servers to validate the identity of clients and vice versa When CHAP is enabled the initiator must send the correct username and target password to gain access to the iSCSI target of the Gateway The initiator secret is provided to allow iSCSI mutual CHAP If mutual CHAP is selected on the initiator the iSCSI Bridge will authenticate itself with the initiator using th...

Страница 31: ...get is presenting devices on The iSCSI protocol officially uses two main TCP ports 3260 and 860 For each iSCSI target interface you can choose to enable either one these TCP ports or both or disable iSCSI on the interface completely from the Configured TCP Port s dropdown iSCSI Sessions Each initiator will open at least one session with each target device it is logged on to The iSCSI Sessions page...

Страница 32: ...he IQN of the device it is logged on to is shown in the Target column See Section 1 1 2 iSCSI Qualified Name IQN for more information Note It is possible that more than one initiating host may be connected to any target device one host to multiple target devices or one host has multiple connections to a single device 32 ...

Страница 33: ...n designated as an initiator Three pieces of information are displayed about each port next to an icon In order they are Port designation the number is the designation of the PCI slot and the letter A or B denotes that this is the left or right hand port of that slot respectively Current state This shows whether the Fibre Channel link for this port is up or down and the speed of the link if it is ...

Страница 34: ...to 2 Gbit 4 Gbit and 8 Gbit In most cases this option may be left set to Auto If you are unsure set the link speed to the SFP speed 2 The Topology pull down menu has 3 options Auto Loop arbitrated Loop FC AL and Point to Point FC P2P It is recommended that you leave this option at Auto unless you wish to force the link into a known topology Configure the initiator port to connect to only specified...

Страница 35: ... Using the Configuration Link drop down you can change this to manual This allows you to enable or disable each individual target on the Fibre Channel link Select the FC target by clicking on its World Wide Port name and then click enable or disable 35 ...

Страница 36: ...hed Devices From within the Home screen of the web interface select the SCSI Device Management icon under the Devices and Protocols section The web interface will then display the following You will be presented with a list of all the devices connected to the EFC102200 Clicking on a device will open a page displaying more information about the device as shown below 36 ...

Страница 37: ...Viewing Device Mappings Clicking on the Mappings option in the menu on the left hand side of the page will display information about all connected devices as shown in the following image 37 ...

Страница 38: ...A target entry exists on this page for each device that is presented on the system By clicking on the blue triangle in the Device Info section you can display further information about each device 38 ...

Страница 39: ...e allows the administrator to view the performance of the Gateway From the Home screen select the System Information icon from the Bridge Maintenance section The following page will be displayed In the Bridge Firmware Details section the following information is displayed Firmware Revision is the installed firmware revision level Serial Number UUID is the unique identifier of that specific EFC1022...

Страница 40: ...in MB s CPU Utilisation This indicates the percentage of the time the CPU is occupied undertaking the management and scheduling the transfer of data between the two interfaces Memory Usage This indicates the percentage of memory used by all processes System Log This page displays the system log useful for diagnosing problems with the Gateway attached devices and connections From the Home screen se...

Страница 41: ...way see Chapter 9 Troubleshooting Load Save Configuration Saving the Configuration to Disk Once you have finished configuring your Gateway we recommend that you save your configuration data to a local disk By doing so you could save valuable time if the Gateway requires replacement or if configuration is lost during upgrades From the Home screen select the Load Save Configuration icon from the Bri...

Страница 42: ... the upload button and the new configuration data will be uploaded Once the configuration file is uploaded a reboot is required Restore to Factory Defaults By clicking on this button all the parameters will be set back to the factory defaults This includes IP address hostname and passwords This option is useful to protect sensitive information if a Gateway appliance is ever returned for maintenanc...

Страница 43: ...mware Updates page allows the administrator to load new firmware onto the Gateway From the Home screen select the Firmware Updates icon from the Bridge Maintenance section The following page will be displayed Once you have downloaded the new firmware to your local machine 1 Click on the Browse button to locate the file you have downloaded from our website 2 Click on the Update button to start A pr...

Страница 44: ...on on how the issue may be resolved Note The following instructions are demonstrated in the Bridgeworks Support Video WANrockIT Downloading Diagnostic Information found at https www youtube com watch v 8RZXFGCy3ZU To download the diagnostic file click on the Diagnostics icon on the Home screen On the Diagnostics page click on the Click Here to Download button Pressing the button will cause the EFC...

Страница 45: ...n The web interface will now display the following Adding Tasks Tasks can be added by clicking on the Add New Scheduling Task button which will start the task wizard Removing Editing Tasks If you already have some tasks added they will be listed in the Scheduled Tasks window as shown 45 ...

Страница 46: ...cking on a task will expand it as shown Clicking the Remove button will remove the task from the task scheduler Clicking the Edit button will start the task wizard for the task allowing it to be edited 46 ...

Страница 47: ... navigate you to the next section of the wizard Previous If present this button will navigate you to the previous section of the wizard Note The currently active section of the wizard will be highlighted in orange on the left hand side Action Email Performance Statistics On the Action section of the wizard enter the recipient email s separating multiple emails with either commas or semi colons Imp...

Страница 48: ...e event The options are Once This means the action will be performed at the specified time and not repeat Daily This means the action will be performed every day at the specified time Weekly This means the action will be performed on specified days every week at the specified 48 ...

Страница 49: ...boxes Each day will have its own checkbox as shown Start Date On the Start Date section of the wizard you can pick the starting date and time for the new task Enter a time into the Time for the first trigger box and select your start date using the calendar The selected date will be marked with a red cross 49 ...

Страница 50: ...e wizard you can pick the end date for the new task You can either select the Ongoing Event checkbox for a task that should run until cancelled or select a date using the calendar The selected date will be marked with a red cross Summary 50 ...

Страница 51: ...ary section of the wizard a brief description of the task will be displayed If you are happy with this task click the Save button to add the task to the task scheduler Saving will automatically close the wizard 51 ...

Страница 52: ... Ensure you are using the correct network address and netmask See Appendix A Accessing the Gateway from Windows using a static IP Address Scan the network using the LAN Scan utility to find all the Gateway s connected to the network in case the network address is different than what was expected See Section 9 4 Lost IP Address If none of the above resolves your problem then after consulting with y...

Страница 53: ... initiator See Section 4 1 2 Network Interfaces for more information Check that the entire network cabling between the initiator and the Gateway is of the correct standard See Section 2 1 Connecting the Ethernet Interface and Section 2 2 Connecting the 10Gb Ethernet Cables Data Digests are an extra level of error checking on top of the standard TCP IP checksum error checking configured on the init...

Страница 54: ...tility can be downloaded from http www 4bridgeworks com support download firmware LAN Scan may also be provided on the CD accompanying your EFC102200 Using LAN Scan LAN Scan is a command line utility available for Windows The downloaded file is in zip format and contains the files lanscan exe and lanscan bat To launch LAN Scan double click on lanscan bat This will create a file named lanscan txt O...

Страница 55: ...r 2003 If your computer is running Windows Server 2003 follow the instructions below From the Desktop or Start menu select My Computer In the My Computer window select Network and Dial up Connections positioned in the bottom left hand corner From within the displayed Network and Dial up Connections select the interface connection that will be used to connect to the Gateway in this example we have ...

Страница 56: ...A general status page will be displayed From within this page select Properties Select the Internet Protocol TCP IP entry and then Properties 56 ...

Страница 57: ...ake a note of your current set up then 1 Click Use the following IP Address 2 Enter 10 10 10 11 into the IP Address field 3 Enter 255 255 255 0 into the Subnet Mask field 4 Finally click the OK button 57 ...

Страница 58: ...reconnect to the Gateway Windows Vista Server 2008 or 7 If your computer is running Windows Vista or 7 follow the instructions below From the Start menu select Control Panel From the Control Panel select the Network and Internet link followed by the Network and Sharing Centre link Click on Local Area Connection 58 ...

Страница 59: ...A general status page will be displayed From within this page select Properties Select the Internet Protocol Version 4 TCP IPv4 entry and then Properties 59 ...

Страница 60: ...ddress 2 Enter 10 10 10 11 into the IP Address field 3 Enter 255 255 255 0 into the Subnet Mask field 4 Finally click the OK button Note Once you have completed the initial set up of the Gateway return your computer to the original settings and reconnect to the Gateway 60 ...

Страница 61: ...very similar for all versions of Microsoft iSCSI Initiator General Set up Open the iSCSI initiator and then click on the General tab You should see the following page From this page you are able to configure the initiator name specify the initiator secret and set up the IPsec connections For the purpose of this document we shall leave the initiator name as the default If you intend to use Mutual C...

Страница 62: ...e of this secret as you will need to enter this as part of configuring CHAP on the iSCSI Gateway Discovery of Devices Before you can connect to an iSCSI Target the iSCSI targets must be discovered Click on the Discovery tab and you should see the following page Devices can be discovered in one of two ways 62 ...

Страница 63: ...I Target portal click on Add Portal You should now be presented with the following window Enter the IP address for the iSCSI Target In this example we shall use the IP address 10 10 10 50 Leave the port at 3260 unless you have configured your iSCSI Gateway to only respond on port 860 in which case change it to 860 Click on the Advanced button to see the advanced options 63 ...

Страница 64: ...rticular interface select the IP address of that network interface from the drop down list Note You may need to select a specific local adapter in order to chose certain source IP addresses CRC Checksum settings allow you to specify whether the discovery is done using Data and or Header Digests Unless the iSCSI device is on a poor quality network where data corruption is likely it is recommended t...

Страница 65: ...w and the Microsoft iSCSI Initiator shall perform the discovery This is usually a quick process but can take up to a minute with multiple network ports Once the discovery is complete you should see the target listed in the Target Portals list Adding an iSNS Server To discover iSCSI targets using this method your iSCSI Gateway must be registered with your designated iSNS server See Section 4 3 4 In...

Страница 66: ... first device is the tape drive and the second is the media changer If no devices are displayed check that the settings used to perform the discovery including CHAP settings are correct Then return to Targets tab and click Refresh If still no devices are displayed check network cables and that the iSCSI Gateway is operational Connecting to a Target To connect to one of the displayed iSCSI targets ...

Страница 67: ... appear The Advanced Settings page is the same as that of the discovery except for one addition In the Connect by using section there is a Target portal option This allows you to choose which interface of the iSCSI Gateway will be used to make the connection to the target In this example we have chosen to connect to the IP address 10 10 10 50 on port 3260 To see how this relates to the iSCSI Gatew...

Страница 68: ... wish to connect to a target over multiple network interfaces see Appendix B 5 Creating Multiple Connections Optional For now select the Source IP and Target portal for the first connection to the target To set up the Digest and CHAP settings see Appendix B 2 Discovery of Devices The list entry for the target should now display Connected in the Status column 68 ...

Страница 69: ...Viewing iSCSI Session Details When you have connected to an iSCSI Target you can check that the device is connected by clicking on the Details button The following window will appear 69 ...

Страница 70: ... can see that the device is an IBM LTO Tape drive Creating Multiple Connections Optional If you wish to create multiple connections to an iSCSI target it is recommended to use Multiple Connections per Session MCS rather than creating multiple sessions MPIO This subsection will only cover the procedure for MCS Navigate the Target Properties window by selecting the target from the Targets list and c...

Страница 71: ... iSCSI Connections are active and the type of load balance used For all iSCSI Sessions there will be at least one leading connection iSCSI connections can be added and removed at any time all apart from the leading connection which can only be removed when the iSCSI Session is logged off 71 ...

Страница 72: ... for data and evenly distribute the data Fail Over Only will use the leading connection for data transfer If a connection should go down then the data transfer shall switch to one of the other connections For most purposes Round Robin will provide the best performance To add a new connection to a session click on the Add button to open the following window Then click Advanced to open Advanced Sett...

Страница 73: ... and target addresses of the original connection In this example we have connected to 10 10 10 50 3260 as the leading connection and the second connection will be 10 10 11 50 3260 Configure CHAP and Header Data Digest and click OK Then click OK within the Add Connection window and now you should see the new additional connection listed in the Session Connections window 73 ...

Страница 74: ...ns can be added to one session Once you have completed setting up the connections click OK to return to the Target Properties page Under Session Properties you will see that the Connection count field value has increased 74 ...

Страница 75: ...procedure 1 Open the Microsoft iSCSI Initiator and click on the Targets tab 2 Click on the iSCSI session that you wish to log off and then click Details 3 In the Target Properties window select the Sessions Tab and select the identifier that is to be logged off 4 Click the Log off button This will log off all connections associated with the iSCSI Session 5 The session identifier should now be remo...

Страница 76: ...scovering iSCSI Targets To get a list of available targets on the Gateway run a discovery using the following command iscsiadm m discovery t st p Target IP Address Port Number An example of this is shown below when performing a discovery on a target with the IP address 10 0 0 68 on port 3260 When the command is run you should see a list of available targets as shown below 76 ...

Страница 77: ...login to the target The following command will allow you to login to an individual target iscsiadm m node T Complete Target Name I p Target IP Address Port Number The example below shows logging into the discovered target iqn 2002 12 com 4bridgeworks 001c03 naa 500110A001104E3C 0 77 ...

Страница 78: ...When you have successfully logged in to the target device the screen should update as shown below To login to all targets found the following command can be used iscsiadm m node l 78 ...

Страница 79: ... an individual target enter the following command at the prompt iscsiadm m node u T Complete Target Name p Target IP Address Port Number When you have successfully logged out of the target device the screen should update as shown below 79 ...

Страница 80: ...Logging out of all targets To log out of all targets enter the following command at the prompt iscsiadm m node u 80 ...

Страница 81: ...When you have successfully logged out of the targets the screen should update as shown below 81 ...

Страница 82: ...geworks Support If you continue to experience problems with the EFC102200 please contact support at http www 4bridgeworks com support Bridgeworks Support Videos These videos will guide you through some of the instructions found in this manual https www youtube com user SANSlide Product Manuals The latest product manuals can be found at http www 4bridgeworks com support user manuals 82 ...

Страница 83: ...C to 35 C Non operational temperature 20 C to 60 C Humidity 8 85 non condensing Network Management Interface No of interfaces 2 Physical RJ45 8P8C Speed Auto sensing 10 100 1000Mb s Standards IPv4 IPv6 NTP SNMP DHCP iSCSI Interface No of interfaces 2 Physical SFP Twin Ax 10GBASE SR Laser LC 10GBASE T RJ45 8P8C Speed Auto sensing 1000 10000Mb s Error Recovery ERL0 ERL1 ERL2 Standards IPv4 IPv6 iSCS...

Страница 84: ...Fibre Channel Link Status 84 ...

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