Dell PowerVault TL4000 User Manual
1gb iscsi to sas
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- Page 1 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS Model TL24iSCSIxSAS 1GBb iSCSI to SAS www.dell.com| support.dell.com...
- Page 3 Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell inc. disclaims any proprietary interest in trademarks and trade names other than its own.
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Page 4: Read This First
Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some service may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1. Visit http://support.dell.com 2. -
Page 5: Table Of Contents
Firmware Updates ........................... 36 Troubleshooting ........................... 38 10.1 Network Problems ........................... 38 10.2 Device related Problems ........................38 10.3 Poor Performance ..........................39 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 3... - Page 6 Step 5 – Creating multiple connections (Optional) ................56 13.7 Step 6 – Logging off an iSCSI Session ................... 61 Glossary ..............................62 Index ..............................64 Page 4 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...
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Page 7: Figures
Figure 10 Installing the second bridge in the PowerVault TL4000 ..............14 Figure 11 Connect the SAS and network cables in the PowerVault TL2000 ..........15 Figure 12 Connect the SAS and network cables in the PowerVault TL4000 ..........16 Figure 13 Login page ............................17 ... - Page 8 Figure 48 iSCSI bridge Network Configuration Page ..................59 Figure 49 Showing multiple connections ......................60 Figure 50 iSCSI Session with Multiple Connections ..................61 Page 6 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...
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Page 9: Safety And Environmental Notices
The iSCSI bridge contains no user-serviceable components. Only an Authorized Service Center should carry out any servicing or repairs. Unauthorized repairs or modifications will immediately void your warranty. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 7... -
Page 10: Preface
5. Preface Thank you for purchasing the DELL Model TL24iSCSIxSAS 1Gb iSCSI to SAS bridge. The bridge is designed to ensure connectivity between LTO SAS drives installed in a Dell PowerVault TL24iSCSIxSAS and the network. The bridge has been designed to ensure that the majority of installations will require the minimum of set up before use. -
Page 11: Figure 2 Product View
2 - 5 LED SAS ports 1, 2, 3 and 4 (Green). Should be blinking when there is port activity. Ethernet port. Air vents. Shipping lock (storage location). SAS port. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 9... -
Page 12: Installing The Iscsi Bridge
Important: installation of the iSCSI bridge card. There are ten basic steps to install the iSCSI bridge on the Dell PowerVault TL2000: • Remove the blue label that is securing the lock to the blank plate (on the rear panel of the library), and then remove the shipping lock (see Figure 3). -
Page 13: Figure 4 Store The Label Of The Library
To prevent damage the bridge must be shipped in the original packaging material. • Lock the bridge in place with two Thumb Screws (see Figure 6 steps 1, 2). Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 11... -
Page 14: Figure 6 Installing The Bridge And Store The Shipping Lock
• Configure the bridge’s host name and IP-address. There are seven basic steps to installing the iSCSI bridge on the Dell PowerVault TL4000: • Remove the blank plate (see Figure 7) on the rear of the library (you need a #3 Phillips screwdriver). -
Page 15: Figure 8 Installing The Bridge In The Powervault Tl4000
Unpack the iSCSI board and install it into the Library (see Figure 8, and Figure 10 step1). Figure 8 Installing the bridge in the PowerVault TL4000 Installing a second bridge in the PowerVault TL4000 with e.g. (four HH SAS Drives). Figure 9 Remove the second blank plate on the PowerVault TL4000 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide... -
Page 16: Figure 10 Installing The Second Bridge In The Powervault Tl4000
Installing the iSCSI bridge Figure 10 Installing the second bridge in the PowerVault TL4000 • Lock the bridge in place with two screws (see Figure 8 and Figure 10 step 2). • Connect the Ethernet cables. • Connect the SAS cables and peripherals. -
Page 17: Sas Bus Connections
Connect the SAS cable to the rear of the iSCSI bridge as shown below, ensuring that connector is oriented correctly. Figure 11 Connect the SAS and network cables in the PowerVault TL2000 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 15... -
Page 18: Figure 12 Connect The Sas And Network Cables In The Powervault Tl4000
Installing the iSCSI bridge Figure 12 Connect the SAS and network cables in the PowerVault TL4000 Page 16 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 19: Configuring The Iscsi Bridge
7.1 Initial set up Connect the iSCSI bridge to the Dell PowerVault drives and the network as described in the previous sections and power up the unit. From your web browser, connect to the iSCSI bridge using the IP-address 10.10.10.10... -
Page 20: Figure 14 Invalid Login Page
Configuring the iSCSI bridge Figure 14 Invalid Login page We suggest that you change your password at the next possible Note: opportunity – see section 7.4 Page 18 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 21: Figure 15 Main Gui Page
Configuring the iSCSI bridge The GUI will now display the root selection screen as shown below. Figure 15 Main GUI page Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 19... -
Page 22: Network Connections
A DNS Server allows the iSCSI bridge to communicate with other network clients via their host name. If you have a DNS Server on your network, enter the IP-address in this field. Page 20 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 23: Setting The Ip-Address
When reconnecting to the bridge the user should flush the arp table in Note: their PC. This can be achieved by typing arp –d from the cmd line window. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 21... -
Page 24: Network Ping
Ping allows the user to send a data packet over a network which will require a response. This is particularly useful to verify the network connections and that a particular network port is visable. Page 22 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 25: Ping A Nework Address
By default 5 pings are sent. Click Ping to send the pings. This will take approximately 5 seconds for 5 pings to complete. A successful ping is shown in Figure 18 below. Figure 18 A successful ping Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 23... -
Page 26: Figure 19 Failed Ping
When a network address is unreachable, the following display will be seen below in Figure 19. If a network port is unreachable 5 pings can take up to 30 seconds to fail. Figure 19 Failed Ping Page 24 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 27: Setting The Password
Change Password. The password can be a maximum of 16 characters. It is not possible to reset the password without logging into the GUI. Important: Ensure you remember your password! Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 25... -
Page 28: Network Services
If this option is enabled the bridge will register its resources with a central iSNS-server. To enable iSNS on the bridge, click the tick box “Use iSNS” and enter the IP-address for the iSNS-Server and click the save button. Page 26 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 29: Iscsi Target
Target Secret – This is the secret defined by the iSCSI bridge and will be sent from the ISCSI Initiator to authenticate the iSCSI Initiator. The two CHAP secrets must be between 12 and 16 characters long and both Initiator and Target Secrets must be different. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 27... -
Page 30: Multipath Settings
1 iSCSI Connection per iSCSI Session and will reject any login to an iSCSI Target that tries to negotiate more iSCSI Connections. If this is the case, click the compatibility check box and this will limit the number of connections to 1. Page 28 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 31: Iscsi Sessions
Many initiators are configured to automatically reconnect after Note: completing the logout request. If this is the case then the connections window may not show any change. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 29... -
Page 32: Device Management
For this product the mapping option is restricted to Multiple Targets with Single LUN – this will present all SAS devices, whether they are LUNs of a SAS device or not, to appear as an individual IQNs on the iSCSI interface. Page 30 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 33: Individual Device Info
LUN - Logical Unit Number - A LUN is a number which identifies a sub-element within a SCSI target device. This is normally used to refer to the device itself. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 34: Maintenance
Network Speed - This indicates the current performance in MB/s across the network. • CPU - This indicates the percentage of the time the CPU is occupied undertaking the management and scheduling the transfer of data between the two interfaces. Page 32 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 35: System Log
After setting the file name and path, select save. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 33... -
Page 36: Load/Save Configuration
Configuration’ box, locate the *.bin file that was previously saved, then click ’Upload’ button. The system settings will now be set. Some of the settings uploaded during this operation may require the Note: bridge to be rebooted to take effect. Page 34 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 37: Export Configuration
By clicking on this button all the parameters will be set back to the factory defaults. This includes IP-address, hostname and passwords. We strongly recommend that if you return the bridge for maintenance Note: that you reset to defaults to protect passwords and other sensitive information. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 35... -
Page 38: Firmware Updates
From within the main menu select the Firmware Updates icon from the bridge maintenance section. The GUI will now display the following window. Figure 28 Firmware Update page Page 36 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 39: Figure 29 Firmware Update Progress Page
It is advisable to check for the latest release on a regular basis. New version of the firmware can be downloaded from the Dell web site at: www.dell.com/support. -
Page 40: Troubleshooting
Connect to the bridge via the GUI interface and check that devices are present in the Device management window and are enabled – you will need to drill down each device entry to see this option. Page 38 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 41: Poor Performance
IP-addresses are not routed down on Network link at any stage. Also, add the following registry settings: From the start menu within windows, select run, then type regedit. In the folder: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 39... - Page 42 Poor GUI performance. If the bridge is transferring large amounts of data then the response from the GUI may seem a little slow as the process that controls the GUI has the lowest priority for Network and CPU resources. Page 40 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...
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Page 43: Setting Up Your Computer For Initial Set Up
If your computer is running Windows 95, 98 or NT follow the instructions below. For users with Windows 2000, 2003, XP, 2008 instructions are detailed in Appendix B. In the Network window’s Configuration tab, Select the TCP/IP entry. Then the Properties Button. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 41... - Page 44 Finally click the OK button and reboot your computer. Once you have completed the initial set up of the iSCSI bridge, return Note: your computer to the original settings and reconnect to the iSCSI bridge. Page 42 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...
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Page 45: Setting Up Your Computer For Initial Set Up
Windows 95, 98 or NT instructions are detailed in Appendix A. From the Desk Top or Start menu, select My Computer. In the My Computer window select Network and Dial-up Connections positioned in the bottom left hand corner. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 43... - Page 46 – in this example we have selected the Gigabit Ethernet interface. A general status page will be displayed. From within this page select Properties. Page 44 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...
- Page 47 Finally click the OK button. Once you have completed the initial set up of the iSCSI bridge, return Note: your computer to the original settings and reconnect to the iSCSI bridge. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 45...
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Page 48: Connecting To An Iscsi Device Using The Microsoft Iscsi Initiator
In this window the user is 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. The iSCSI bridge not support this. Page 46 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 49: Step 2 - Discovery Of Devices
Before the user can connect to an iSCSI Target, the iSCSI targets must be discovered. Click on the Discovery tab and you should see a window as in Figure 32. Figure 32 Discovery Tab Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 47... -
Page 50: Figure 33 Adding A Target Portal
If multiple network interfaces are installed in the Server and the user wishes to select a particular interface, select the IP-address of that network interface from the pull down list. Page 48 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 51: Figure 35 Adding An Iscsi Target
Once the user is satisfied that all advanced options are correct click OK. The user should now see a window as in Figure 35. Figure 35 Adding an iSCSI Target Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 49... -
Page 52: Figure 36 Discovery Complete
Figure 37 Entering the address of the iSNS-Server Enter the address of the iSNS-Server then click OK. The Microsoft iSCSI-Initiator will now query the iSNS- Server and discover any iSCSI-Targets that are registered. Page 50 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 53: Step 3 - Targets
To connect to one of the iSCSI Targets, click on one of the target names and then click the ‘Log on’ button. In this example we have chosen the first target. A window should appear as in Figure 39. Figure 39 Connecting to an iSCSI Target Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 51... -
Page 54: Figure 40 Advanced Connection Settings
Check box. This will be covered in a following section. Now click on the advanced button to see the advanced settings. A window should appear as in Figure 40. Figure 40 Advanced Connection settings. Page 52 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 55: Figure 41 Iscsi Bridge Network Configuration Page
10.10.10.50 on port 3260. To see how this relates to the iSCSI bridge configuration note the IP-addresses in Figure 41. Figure 41 iSCSI bridge Network Configuration Page Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 53... -
Page 56: Figure 42 Iscsi Target Connected
This will now take you back to the window that was shown in figure 10. Click OK once more. The user should now see the iSCSI Target connected. This is shown in Figure 42. Figure 42 iSCSI Target Connected Page 54 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 57: Step 4 - Viewing Iscsi Session Details
Session, and the Target Portal Group. If the user clicks on the Device tab, he should see details of the target device. Here we can see that the device is an IBM LTO Tape drive. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 58: Step 5 - Creating Multiple Connections (Optional)
If the user wishes to create multiple connections to an iSCSI Session, return to the Session tab in the Target Properties window. Click on the Connections button and a window should appear. This is shown in Figure 45. Figure 45 Session Connections Page Page 56 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... - Page 59 For most purposes Round Robin will provide the greatest performance increase. If you have been experiencing a performance decrease when transferring data to more than one device using multiple connections, please refer to the trouble shooting guide. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 57...
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Page 60: Figure 46 Adding A New Connection
“Connect by using” section. When setting up multiple connections you ideally want to connect to different ports and different network interfaces. 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. Page 58 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 61: Figure 48 Iscsi Bridge Network Configuration Page
Appendix C The corresponding network configuration on the iSCSI bridge for the example above is shown below in Figure 48. Figure 48 iSCSI bridge Network Configuration Page Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 59... -
Page 62: Figure 49 Showing Multiple Connections
Set up CHAP and Digest then click OK. The user will now be brought back to the window shown in Figure 46. Click OK and now the user should see the Session Connections page with two connections. This is shown in Figure 49. Figure 49 Showing multiple connections Page 60 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... -
Page 63: Step 6 - Logging Off An Iscsi Session
The session identifier should now be removed from the identifier list. Click ok to return to the main iSCSI Initiator window. The iSCSI device should now show as inactive. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 61... -
Page 64: Glossary
This allows data storage devices to be linked together over IP-networks. iSNS - allows automated discovery, management, and configuration of iSCSI from a central point. LAN - Local area network. A computer network within a limited area. Page 62 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C... - Page 65 Switch - a network communications device that routes packets (messages or fragments of messages) between nodes across virtual circuits. TCP/IP - Transmission Control Protocol/Internet Protocol. TCP is a protocol that insures packets are delivered in order, error free. Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C Page 63...
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Page 66: Index
26, 27, 29, 31, 32, 42, 45, 62 Subnet Mask 21 iSCSI Bridge 2, 7, 8, 10, 12, 14, 15, 17, 20, 21, System Log 33 42, 45 Page 64 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C...