ATTO Technology 2700C Multiple target nodes, Automatically configure multiple targets

Page 21

Multiple target nodes

Multiple targets allow you to create a more configurable mapping scheme which can segregate storage into different iSCSI nodes within the iPBridge, with each iSCSI target having its own set of access criteria.

For example, if you have two servers and a library with four tapes and a media changer, the default nodes would provide both servers access to all tapes and the media changer (default target mode).

If you configured multiple target nodes, you would be able to map some devices to one server and other devices to the other server, requiring separate usernames and passwords for access. Refer to Exhibit 2.2-1.

Note

If actual storage is mapped to more than one iSCSI target and a server has authorization for both targets, the server could show duplicate storage without any warning to the user.

You may use either of two methods to control access to storage: Access Control Lists or CHAP authentication.

Access Control lists: each target iqn has its own access control. the iPBridge will check the initiator’s iqn before allowing access.

CHAP to control access: different CHAP

account names and CHAP secrets are assigned to each target. (Refer to iSCSI commands on page 51)

Refer to ATTO ExpressNAV interface on page 19 for information about ExpressNAV.

Automatically configure multiple targets

1From the ExpressNAV main menu, click on the Automatic Target Management menu item on the left side of the screen.

2Click on the Map each device to its own target button.

The iPBridge will map itself as a device at LUN 0.

A target name suffix will be added to the iqn of each Fibre Channel device such as

vendorid-devicename-xxx

•vendorid is the Fibre Channel device vendor ID

•devicename is the Fibre Channel device’s inquiry device name.

•xxx is a device index

When the action is complete, the screen will go to the iSCSI Management page.

If you are prompted to restart the iPBridge, go to the Firmware Restart page and restart the iPBridge.

Manually configure multiple target nodes

1From the ExpressNAV main menu, click on the Automatic Target Management menu item on the left side of the screen.

2In the iSCSI Management page, type [name] in the Add an iSCSI target box

The name is a suffix appended to the standard IPBridge iqn name. The suffix name can be up to 24 characters.

3Click on the device map link of your target.

4After the next mapping page opens, drag the boxes representing Fibre Channel devices to the LUNs you want.

5Click Submit.

6Repeat from Step 2 for each node you want to configure.

7If you are prompted to restart the iPBridge, go to the Firmware Restart page and restart the iPBridge.

12 Installation: mapping

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Atto Technology, Inc Atto iPBridge 2700C/R/DPage Page Contents Atto ExpressNAV pages TroubleshootingUpdating firmware Alternative interface optionsCLI commands summary General use commands Maintenance commandsDiagnostic commands Fibre Channel configuration commands Serial port configuration commandsEthernet commands ISCSI commandsMapping commands Appendix a Atto iPBridge, FibreBridge familyAppendix B Cabling Iii Page Embedded software features Atto iPBridge 2700 features, benefitsAtto iPBridge 2700 provides storage options Gigabit Ethernet GbE a transmissionScsi Possible storage ConfigurationsAtto iPBridge 2700R/D Installation instructions Front label side Back connector sideInstallation Atto iPBridge 2700R/D Ethernet interface Atto iPBridge 2700CFibre Channel interface Serial management headerFaceplate side Power side Configuring the iPBridge Click Launch Browser Getting an IP addressTarget management Default target nodeTarget names Map devices automaticallyManually configure multiple target nodes Automatically configure multiple targetsChap to control access different Chap Multiple target nodesPhysical connections Initiator/Host to Network Mapping default vs. multiple target nodesInstallation mapping Page Installation mapping Create a read only password or username Additional configurationsSet the Real Time Clock Click Time & DateSnmp protocol Set up a Vlan Virtual Local Area NetworkAtto ExpressNAV interface Browser compatibilityOpen an ExpressNAV session Exhibit 3.0-1 An ExpressNAV Atto ExpressNAV pages Firmware Update Bridge ConfigurationAdvanced CLI Configuration Manual Target Management iSCSI Target ManagementUsing FTP over GbE Using Atto ExpressNAVUpdating firmware Preliminary stepsFirmware update Inside out method TroubleshootingCheck the Host Event Log Check the event and trace logsExhibit 5.0-1 iPBridge 2700C faceplate Check for problems on attached devicesCheck iPBridge product versions and update firmware Check host versionsCheck components Checking the iSCSI Host Adapter or NIC Checking the LAN/WANChecking the iSCSI OS driver Performance IssuesChecking the Operating System Checking the iPBridge Ethernet portsChecking applications Checking the Ethernet host adapter or NICChecking the host system Optimizing Atto ExpressNAV in Internet ExplorerUse the serial port or header Alternative interface optionsUse Telnet Type iPBridge in the New Connection dialog boxExhibit 6.0-1 Start up messages FCTargets command Command conventions Symbol IndicatesCLI provides ASCII-based interface ReadyCLI Error Messages Command Defaults Example CLI commands summaryRmon Sntp Alternative interfaces CLI General use commands VerboseMode UsernameMaintenance commands SNTPServer SpeedWriteDefaultSpeedWrite TailEventLogDiagnostic commands DumpTraceLog DumpEventLogEmailFromAddress EmailNotifyPing IsReservedRouteDisplay SerialNumberSNMPTraps TemperatureTraceLog TraceLogFilterSerial port configuration commands SerialPortBaudRateSerialPortEcho Fibre Channel configuration commands Ethernet commands ReadOnlyUsername ReadOnlyPasswordISCSI commands ISNSLoginControl ISCSIWANIPAddressISNSServer Mapping commands Route Product features Appendix a Atto FibreBridge familyAtto iPBridge Atto FibreBridge Fibre Channel connections Appendix a CablingEthernet connections Cable length Cable sizeTerm Definition Appendix B GlossaryFCC Standards Radio and Television Interference Appendix C Safety standards and compliancesVi Appendix Appendix D Atto accessories Contact Atto Technology, Inc Appendix E Warranty, contact information
Top Page Image Contents