Dell R720 Hardware iSCSI Configuration

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Dell R720 Hardware iSCSI Configuration

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Dear All,

I am trying to connect Dell MD3200i iSCSI SAN from my 2 Dell R720 servers from Hardware iSCSI initiator (bios). Below is my configuration:

MD3200i HBA Configuration

HBA1
port0: 192.168.30.100
port1: 192.168.31.100
port2: 192.168.32.100
port3: 192.168.33.100

HBA2
port0: 192.168.30.101
port1: 192.168.31.101
port2: 192.168.32.101
port3: 192.168.33.101

Dell R720 Configuration(Server 1)

Nic0: 192.168.30.102 - Connected to HBA1 Port0
Nic1: 192.168.30.103 - Connected to HBA2 Port0
Nic2: 192.168.32.102 - Connected to HBA1 Port2
Nic3: 192.168.32.103 - Connected to HBA2 Port2

Dell R720 Configuration(Server 2)

Nic0: 192.168.31.102 - Connected to HBA1 Port1
Nic1: 192.168.31.103 - Connected to HBA2 Port1
Nic2: 192.168.33.102 - Connected to HBA1 Port3
Nic3: 192.168.33.103 - Connected to HBA2 Port3

The problem is servers shows it is connected to the SAN but I cannot find the iqn of my server in the san. I cannot connect to SAN from hardware iscsi but same configuration works well with vmware. Any idea would be of great help.

Thank You

All Replies
  • A server cannot/should not use the same subnet on 2 isolated networks (including direct-connected cables as this is considered a 2-port network). This is not an MD SAN or iSCSI limitation, but IP limitation.

    So you'll need to stagger you connectivity.

    E.g.

    Dell R720 Configuration(Server 1)

    Nic0: 192.168.30.102 - Connected to HBA1 Port0

    Nic1: 192.168.30.102 - Connected to HBA2 Port1

    Nic2: 192.168.33.102 - Connected to HBA1 Port2

    Nic3: 192.168.33.102 - Connected to HBA2 Port3

    Dell R720 Configuration(Server 2)

    Nic0: 192.168.30.103 - Connected to HBA1 Port0

    Nic1: 192.168.31.103 - Connected to HBA2 Port1

    Nic2: 192.168.32.103 - Connected to HBA1 Port2

    Nic3: 192.168.33.103 - Connected to HBA2 Port3

    Note: HBA stands for Host Bus Adapter, which is an (iSCSI, SAS or fiber) adapter that is put in a host (server). A better term to use for the iSCSI ports on the SAN is something like "Controller 0 iSCSI port 0". The NIC/iSCSI card in the server could/would be considered the HBA.

    Member since 2003

  • Hello  itsurkg,

    Are you trying to do a boot from san for your 2 servers or are you just wanting to connect the MD3200i via hardware instead of software iSCSI.  Also what OS are you running on the 2 R720 & are the R720’s direct connected to the MD3200i or is it going through a switch.

    Please let us know if you have any other questions.

    DELL-Sam L
    Dell | Social Outreach Services - Enterprise
    Download the Dell Quick Resource Locator app today to access PowerEdge support content on your mobile device! (iOS, Android, Windows)

  • Hi,

    I am trying to connect MD3200i via hardware instead of software iSCSI. I am using Vmware ESXi.5.1 on both of my servers. I have directly connected san with my servers without using a switch. Also, do I need crossover cable to directly connect to servers.