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HP ISCSI SR2122 Getting Started Manual

HP ISCSI SR2122 Getting Started Manual

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Getting Started Guide
hp StorageWorks
iSCSI SR2122 storage router
Third Edition (September 2003)
Part Number: AA-RTE1C-TE
This document describes the integration of IP-based Storage Networks using the iSCSI protocol to HP
StorageWorks Fibre Channel SANs and HP Storage arrays. The HP SR2122 iSCSI Router is used to bridge from
TCP/IP hosts to Fibre Channel storage.
For the latest version of this document, access the HP storage website at:
http://www.hp.com/country/us/eng/prodserv/storage.html.

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  • Page 1 Part Number: AA-RTE1C-TE This document describes the integration of IP-based Storage Networks using the iSCSI protocol to HP StorageWorks Fibre Channel SANs and HP Storage arrays. The HP SR2122 iSCSI Router is used to bridge from TCP/IP hosts to Fibre Channel storage.
  • Page 2 Nothing herein should be construed as constituting an additional warranty. Printed in the U.S.A. iSCSI SR2122 Storage Router: Getting Started Guide Third Edition (September 2003) Part Number: AA-RTE1C-TE iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 3: About This Document

    ■ Sample Configurations, page 64 Intended Audience This document is intended for customers who purchased the iSCSI SR2122 Storage Router. Other iSCSI SR2122 Storage Router Documentation The iSCSI SR2122 Storage Router kit also includes: ■ HP StorageWorks iSCSI Storage Router 2122 Command Line Interface Reference Guide:...

  • Page 4: Table Of Contents

    Figure 32:Iscsi03 HP Config Screen Example ........
  • Page 5 Note: Although the iSCSI protocol is written as a complete data transport from host to storage this chapter will only discuss the current HP supported topology of iSCSI hosts to Fibre Channel storage. Assumptions The reader should have a thorough understanding of HP’s Fibre Channel Storage networking products including FC switches and storage as well as a basic understanding of TCP/IP networking.

  • Page 6: Figure 1:Ip/Fc Network Example

    Heterogeneous SAN Although the iSCSI protocol is written as a complete data transport from host to storage this chapter will only discuss the current HP supported topology of iSCSI hosts to Fibre Channel storage using the HP SR2122 iSCSI Router.
  • Page 7 HP SR2122. SR2122 iSCSI router The HP SR2122 iSCSI Router is the bridge between the iSCSI Initiators and the SAN storage that converts IP to FC protocol and provides iSCSI Initiator access to FC storage. SCSI routing provides IP hosts with access to FC storage devices as if the storage devices were directly attached to the hosts, with access to devices being managed primarily in the Storage Router.
  • Page 8 The SR2122 iSCSI Router is supported on any currently supported HP B-Series, C-Series, or M-Series switch fabric. For the latest HP switch topoligies and fabric rules, please read the “HP StorageWorks SAN Design Reference Guide” avalable at: http://h18000.www1.hp.com/products/storageworks/san/documentation.html...
  • Page 9 Table 9 of the SAN Design Guide (Chapter 3),with the HP C-Series Product Line switches listed in Table 10, or with the HP M-Series Product Line switches listed in Table 12 of the SAN Design Guide. View the SAN Design Guide at: http://h18000.www1.hp.com/products/storageworks/san/documentation.html...
  • Page 10 ■ Compaq Network Teaming (Windows 2000 and Windows 2003 only) SR2122 Management Software Support The following HP management software is supported: ■ Compaq Insight Manager 7 ■ HP OpenView Storage Area Manager (SAM) iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 11 Channel port (FC2) is not supported as a redundant SAN port for FC1. ■ Direct connect of the SR2122 FC ports to any HP storage array is not supported. The SR2122 Management port must be in a different subnet than the SCSI Router ■...
  • Page 12 The HSG80 is supported in both SCSI-3 Transparent Failover Mode and Multibus Failover Mode. ■ Without HP Secure Path the Enterprise Virtual Array is supported with the SR2122 accessing only one EVA controller port. This will disable controller failover protection. ■...
  • Page 13 A Standalone SR2122 can be added to a SR2122 Cluster without re-initializing the standalone router to preserve its configuration. For further SR2122 configuration details, please read “HP StorageWorks iSCSI storage router 2122 User Guide PN: 304835-002” Chapter 5 – Configuring the Storage Router.

  • Page 14: Figure 2:Gui Display Of The Fc Port Wwpn

    FC Port WWPNs and the WWPNs of the storage arrays that will be serving storage to the SR2122. Standalone SR2122 examples: Figure 3: Standalone SR2122; Single SAN iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 15: Figure 4:Standalone Sr2122; Dual Sans

    SR2122 Cluster members. If this active Cluster member fails the I/O can switch to another cluster member. To insure proper failover each cluster member needs one of its FC ports in the same zone. Clustered SR2122 Example: Figure 5: Clustered SR2122 iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 16 Whatever method is chosen we must now use the MSA1000’s selective storage presentation (SSP) commands to restrict access to volumes that are to be served to the SR2122. Without HP Secure Path, the MSA1000 is supported with the SR2122 accessing only one MSA controller port. This restriction disables controller failover protection.
  • Page 17 On initial discovery the SR2122 FC ports are assigned names that begin with !NEWCON# in the HSG80 connection table. These entries may be renamed to a more user-friendly naming convention with the Rename command. HSG80> rename !newcon09 isrfc1-p1 HSG80> rename !newcon10 isrfc1-p2 iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 18 6000-1FE1-0007-BB40-0009-9500-4670-004F NOIDENTIFIER Switches: NOWRITE_PROTECT READ_CACHE READAHEAD_CACHE WRITEBACK_CACHE MAX_READ_CACHED_TRANSFER_SIZE = 32 MAX_WRITE_CACHED_TRANSFER_SIZE = 32 Access: ISRFC1-P1 State: ONLINE to the other controller Size: 35556389 blocks Geometry (C/H/S): ( 7000 / 20 / 254 ) iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 19 STEP 3: Enter an adapter port World Wide Name: Enter the SR2122’s FC port WWN. STEP 4: Select an operating system – Leave as Microsoft Windows. STEP 5: Add comments for this entry (optional) iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 20: Figure 6:Host Properties

    Step 1: Use the pull down menu and find the newly created host entry and select it. Click to save the entry. The virtual disk entry will appear as: iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 21: Figure 7:Virtual Disk Properties Entry

    HP SureStore Command View Storage Device Manager (SDM). Note: Although XP's HP Storage Works Secure Manager VA can configure VA LUNs to be selectively presented for SR2122's FC port, it is not supported at this time. Currently, the entire set of LUNs configured on the VA's Fibre channel port is presented to the SR2122.
  • Page 22 View XP. Note: Although XP's HP Storage Works Secure Manager XP can configure XP LUNs to be selectively presented for SR2122's FC port, it is not supported at this time. Hence, the entire LUNs configured on the XP's Fibre channel port is presented to the SR2122. It is required to have this port dedicated to the SR2122 fabric zone.
  • Page 23 Access List. The Access List, in this case, assigns or cross-references the iSCSI initiator’s IP address to a host name. Note: The host name assigned to the IP address does not necessarily have to be the IP address’s DNS name. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 24 16.117.74.66/255.255.255.255 accesslist Prod_Server15 accesslist Prod_Server15 16.222.21.44/255.255.255.255 accesslist Lab203_Server accesslist Lab203_Server 16.120.232.32/255.255.255.255 To create an Access List entry via the GUI click on Add Access List on the Configuration page: iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 25: Figure 8:Access List Entry

    Serving Storage to the iSCSI Initiators from the SR2122 over IP Figure 8: Access List Entry Enter the iSCSI Initiator name and click ADD. Figure 9: iSCSI Initiator Name Enter the iSCSI Initiator IP address and IP mask and click ADD. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 26: Figure 10:Iscsi Initiator Ip Address

    SCSI targets, Storage devices and an Access List entry. It is the SCSI Router Instance that the iSCSI Initiator communicates with to access it’s storage from the SR2122. The basic structure of a SCSI Router Instance is a follows: iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 27: Figure 12:Scsi Router Instance Structure

    Standalone or Cluster Mode. Using the SR2122 CLI the commands would be: SR2122> scsirouter iSCSI03_Disks SR2122> scsirouter iSCSI03_Disks description "Router Instance of all storage for iSCSI03" SR2122> scsirouter iSCSI03_Disks authentication "none" SR2122> scsirouter iSCSI03_Disks username "none" iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 28 The two LUN numbers do not necessarily have to match. Using the SR2122 GUI, a SCSI Router Instance is created from the Configuration screen clicking on Add a SCSI Router. Enter the Instance name and description and click Add. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 29: Figure 13:Scsi Router Instance Name And Description

    Enter the Target name, Access List entry, click the LUN Mapping radio button and click Add. Figure 14: Add Target Name and Access List Entry At the Configure LUNs screen click Add LUN. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 30: Figure 15:Configure/Add Lun

    LUN number from the primary pull down menu and click Add. Figure 16: Add New Lun The browser will return to the Configure LUNs screen. Click the Add button and add the 2 LUN for this Target. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 31: Figure 17:Add Second Lun

    After Clicking Add the browser will return you to the Configure LUNs screen displaying the two newly created LUNs. Figure 18: New LUNs Click on SCSI Routers to display all SCSI Router Instances. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 32: Figure 19:All Scsi Router Instances

    Click on the newly created Instance, iSCSI03. Figure 20: Instance iSCSI03 Add ge2 from the Secondary Interface pull down menu, add the SCSI Router Instance IP address and its Netmask, then click Apply. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 33: Figure 21:Secondary Interface

    The iSCSI initiator sees the storage resources (LUNs) as if they were local drives attached directly to the server. Currently, the SR2122 supports Microsoft Windows 2000 and Red Hat Linux as iSCSI Initiators. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 34: Figure 22:Scsi Router Instance Ip Address

    Serving Storage to the iSCSI Initiators from the SR2122 over IP HP iSCSI Initiator Setup for Windows 2000 and Windows 2003 The iSCSI driver provides a transport for SCSI requests and responses for storage devices; however, instead of providing a transport for directly attached devices, the driver transports the SCSI requests and responses between the IP host and the SR2122 via an IP network.

  • Page 35: Figure 23:Iscsi Configuration Application

    Control Panel. Figure 23: iSCSI Configuration Application Click on the ‘hp iSCSI Config’ icon to return to the iSCSI Config screen. Figure 24: iSCSI Configuration Screen The Status button is used to display iSCSI connection status to the SCSI Router Instance IP address and it’s associated Targets.

  • Page 36: Figure 25:Iscsi Connection Status

    (CRC) on the specified target as well as setting the access authentication username and password. Global Settings: (HP 3.1.3 Driver Only ) Used to control the usage of iSCSI cyclical redundancy check (CRC) on all targets. Settings: (HP 3.1.3 Driver Only ) If authentication were ‘enabled’ on the SCSI Router...
  • Page 37 6. Targets respond with device information. 7. The IP host creates a table of internal devices. The HP StorageWorks iSCSI Driver for Microsoft Windows 2000 and Windows 2003 uses Windows 2000 network services to connect to iSCSI remote target nodes that are defined using the iSCSI control panel applet.

  • Page 38: Figure 26:Iscsi Initiator Properties

    Click on the Add button located on the Target Portal tab then type the IP address of the SR2122 target presented to this server and Click OK to add the IP address to the Available Portals list. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 39: Figure 27:Add Target Portal

    It is important to enable Automatic Restore if the server is to automatically login to the SR2122 target when the server is powered up or rebooted. If not, then the Available Targets must be logged in manually. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 40: Figure 29:Verify Connection

    The Target Staus should change to connected. To verify that the server is now connected to the SR2122 LUNs click on the Active Sesisons tab, highlight the connected Session and click on the Details button. Figure 29: Verify Connection iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 41: Figure 30:Session Details

    HP recommends that you remove the file /etc/initiatorname.iscsi before installing the new driver. Please refer to the following web site for the latest sources for the linux driver for the HP SR2122 iSCSI router: http://sourceforge.net/projects/linux-iscsi...
  • Page 42 To provide a more reliable namespace, the iSCSI driver will scan the system to determine the mapping from SCSI device nodes to iSCSI targets, and then create a tree of directories and symbolic links under /dev/iscsi to make it easier to use a particular iSCSI target's logical units. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 43 If the bindings file grows too large, lines for targets that no longer exist may be manually removed by editing the file. Manual editing should not normally be needed, since the driver can maintain up to 65535 different bindings. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 44 HBA. The name of the file will be the iSCSI HBA's host number, which is assigned to the driver by Linux. When the file is read, it will show the driver's version number, followed by a list all iSCSI targets and LUNs the driver has found and can use. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 45 Configuring hp StorageWorks Secure Path for Windows with the SR2122 Storage Router Note: HP Storageworks for Windows is supported with SR2122s in Standalone Mode only. SR2122 HA environments are not supported. Note: Note: Only the HSG80 and HSV110 controllers are supported with Secure Path.

  • Page 46: Figure 31:Secure Path Configuration Example

    SAN/Storage Setup In a High Availability SAN only Fibre Channel port FC1 from each SR2122 is connected to a different fabric. SR2122 Name Node A Ring Not Used Node B Tree Not Used iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 47 Using the Command View for EVA GUI, create LUNs and present both SR2122 Host Names to each LUN. A rescan either through the SR2122 management GUI within the Monitor Window or through the CLI command "Show Devices Rediscover" will now show the newly presented EVA LUNs. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 48 On SR2122 Node A: NodeA> scsirouter iSCSI03_Disks NodeA> scsirouter iSCSI03_Disks description "Router Instance of all drives for iSCSI03" NodeA> scsirouter iSCSI03_Disks authentication "none" NodeA> scsirouter iSCSI03_Disks username "none" NodeA> scsirouter iSCSI03_Disks password "none" iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 49 SCSI Router Authentication Information Router Authentication Username Password ---------- --------------- --------------- -------- iSCSI03_Disks none none none Router ServerIf Vlan Vid IP/Netmask Secondary TCP Port ---------- ---------- -------- -------------------------------- ---------- -------- iSCSI03_Disks ge1 33.33.33.103/24 3260 iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 50 To begin the installation the user can either insert the SR2122 Solution CD and choose Install iSCSI Driver from the install menu or by running Setup.exe from the SR2122 Solution CD directory: iscsi_initiator\HP\Win2K iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 51: Figure 32:Iscsi03 Hp Config Screen Example

    Figure 32: Iscsi03 HP Config Screen Example Click SAVE and reboot the iSCSI Initiator to apply. After the server reboots enter hp iSCSI Config again and check the Status of the driver to verify both the SR2122 targets are active.

  • Page 52: Figure 33:Checking That Sr2122 Targets Are Active

    Because the server's/cluster's point of view is that the iSCSI drive(s) are local, a change to the iSCSI target's Access List and to the iSCSI driver is all that is necessary. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 53: Figure 35:Mscs Cluster With Sr2122 Routers Example

    The Access List Entry on both SR212 routers must contain the same MSCS Cluster IP addresses to ensure proper failover/failback of the iSCSI disk drives in the MSCS cluster. The Access List entry must be created on both SR2122 Node A and Node B: iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 54 Next, add both Router Instance IP addresses to each MSCS Cluster member's iSCSI driver. Open the hp iSCSI Config configuration screen and add the IP addresses of the SCSI Router Instances from each SR2122 Node A and Node B, 33.33.33.103 and 33.33.33.104,...

  • Page 55: Figure 36:Secure Path Manager Example

    Serving Storage to the iSCSI Initiators from the SR2122 over IP After the MSCS cluster reboots enter hp iSCSI Config again on each cluster member and check the Status of the driver to verify both the SR2122 targets are active.
  • Page 56 SR2122 / Insight Manager 7 Service Pack 2 Integration The purpose of this section is to describe the integration of the HP SR2122 Storage Router and Insight Manager 7 (IM 7). To IM 7, it is simply a TCP/IP device, which is discovered, data collected, and status polled.
  • Page 57 Microsoft Internet Explorer 5.5 with Service Pack 2 or later Microsoft Internet Explorer 6.0 Microsoft Internet Explorer 5.5 or Microsoft Internet Explorer 6.0 is only required if you want to browse locally on the server. iSCSI SR2122 Storage Router: Getting Started Guide...
  • Page 58 There are a number of settings that have to be configured in order to make the SNMP V1 integration with IM 7 to work. Here is a valid SR2122 Management Port TCP/IP configuration: iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 59: Figure 37:Valid Sr2122 Management Port Tcp/Ip Configuration

    Address and Second IP Address of the SNMP Trap Host sections. These are the SNMP Trap Destinations. It should be noted that IM 7 SP2 only supports SNMP V1 traps. This means that the “Version” should be set to 1. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 60: Figure 39:Automatic Discovery

    SR2122 / Insight Manager 7 Service Pack 2 Integration If the user would like to see authentication traps (if users are speaking SNMP at the HP SR2122, with an incorrect community string) then they configure it to be enabled. Likewise, if you wish each Link state change to be sent as a trap, you must enable Link up/Down for whichever Link you wish to monitor state changes with.

  • Page 61: Figure 40:Discovery Filters

    You can also just add the device one at a time. But be aware that Device filters should be set properly to allow for network devices to be discovered. Figure 41: Manual Discovery iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 62: Figure 42:Snmp Authentication Trap Enabling

    SNMP Community Strings The SNMP community strings for “Monitor” and “Control” of the devices must correspond to the HP SR2122’s Read and Write Community settings. SNMP Authentication Trap Enabling By default, this trap is disabled in IM 7, meaning it is ignored and discarded. To enable it you have to edit the settings of RFC 1215.mib as seen below:...

  • Page 63: Figure 43:Snmp Trap Edit

    Click on Enable Trap Handling then click Apply. Figure 44: SNMP Network Query You will find that the HP SR2122 is a network device and will be found via the network device query. iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 64: Figure 45:Example Of Multiple Os Systems In A Non-Redundant Path Configuration

    For maximum supported SAN and Storage configurations, please refer to Chapters 3 and 4 of the "HP StorageWorks SAN Design Reference Guide." For maximum supported IP configurations please consult with your network administrator Figure 45: Example of Multiple OS Systems in a Non-Redundant Path Configuration iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 65: Figure 46:Windows 2000 Servers With Nic Teaming: 2 Node Sr2122 Cluster

    Sample Configurations Figure 46: Windows 2000 Servers with NIC Teaming: 2 Node SR2122 Cluster iSCSI SR2122 Storage Router: Getting Started Guide...

  • Page 66: Figure 47:Maximum Sr2122 Cluster Configuration Using Ha Ports

    Sample Configurations Figure 47: Maximum SR2122 Cluster Configuration Using HA Ports iSCSI SR2122 Storage Router: Getting Started Guide...

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