17 Replies Latest reply: Jun 26, 2013 12:28 AM by ASHWANI8HIGHS RSS

Snapmirror installed, iscsi connection ok, but fdisk doesnt list anything

sidsinhaz Novice
Currently Being Moderated

I have Netapp snapmirror installed in a VM version 7.3

I created an aggregate, volume, LUN, initiator, mapped the LUNs,

everything is fine, I can discover the LUN using iscsiadm on another ubuntu machine. I connect to the iscsi and connections successful.

 

# iscsiadm -m discovery -t st -p 192.168.0.11

Manually login to the iSCSI targets.
# iscsiadm -m node -T iqn.1992-08.com.netapp:sn.4043470224 -p 192.168.0.11 -l

Configure automatic login for the iSCSI targets.
# iscsiadm -m node -T iqn.1992-08.com.netapp:sn.4043470224 -p 192.168.0.11 –op update -n node.startup -v automatic

Restart the iscsi service.
# service iscsi stop
# service iscsi start

Confirm whether you are able to see the disks from both nodes.
# fdisk -l

this above fdisk command doesnt output anything

Any pointers on how I can solve this or how to find out if the issue is on the target (Netapp) or the iscsi initiator?

  • Re: Snapmirror installed, iscsi connection ok, but fdisk doesnt list anything
    ASHWANI8HIGHS Certified Sprinter
    Currently Being Moderated

    Hi  ,

     

    Can you explain about your setup . As far as i can understand you have provided the storage to two nodes .

    So what did you mean by snapmirror ,please  provide the details of  your snapmirror setup .

    Ex- snapmirror volumes ,relation ,and entry in the snapmirror conf file .

  • Re: Snapmirror installed, iscsi connection ok, but fdisk doesnt list anything
    ASHWANI8HIGHS Certified Sprinter
    Currently Being Moderated

    Also try using   'storage show disk'  command on your console and please share the output .

    • Re: Snapmirror installed, iscsi connection ok, but fdisk doesnt list anything
      SIDSINHA1 Novice
      Currently Being Moderated

      Hey Ashwani,

       

      THanks for replying and trying to help.

      So, basically I have two filers configured, one source and another destination filer for sync.

      I have established the snapmirror relationship, below are the output of the commands you requested:

      I am using vol01.

       

      Let me know if you need any more info. ANy help is appreiciated.

       


      src-filer>

      src-filer>

      src-filer>

      src-filer> storage show disk

      DISK                  SHELF BAY SERIAL           VENDOR   MODEL      REV

      --------------------- --------- ---------------- -------- ---------- ----

      v4.16                   1    0  56191300         NETAPP   VD-100MB   0042

      v4.17                   1    1  56191301         NETAPP   VD-100MB   0042

      v4.18                   1    2  56191302         NETAPP   VD-100MB   0042

      v4.19                   1    3  88733203         NETAPP   VD-1000MB  0042

      v4.20                   1    4  88733204         NETAPP   VD-1000MB  0042

      v4.21                   1    5  88733205         NETAPP   VD-1000MB  0042

      v4.22                   1    6  88733306         NETAPP   VD-1000MB  0042

      v4.24                   1    8  88733307         NETAPP   VD-1000MB  0042

      v5.16                   1    0  87432600         NETAPP   VD-1000MB  0042

      src-filer> lun show

          /vol/vol01/lun01             2.4g (2621440000)    (r/w, online, mapped)

       

      src-filer> vol status

               Volume State           Status            Options

                 vol0 online          raid0, flex       root, no_atime_update=on,

                                                        create_ucode=on,

                                                        convert_ucode=on,

                                                        maxdirsize=2621

                vol01 online          raid4, flex       create_ucode=on,

                                                        convert_ucode=on

      src-filer> snapmirror show

       

      src-filer> snapmirror status

      Snapmirror is on.

      Source                Destination           State          Lag        Status

      src-filer:vol01       dest-filer:vol01      Source         47:08:34   Idle

      src-filer>

      src-filer> iscsi ?

      The following commands are available; for more information

      type "iscsi help <command>"

      alias               interface           security            stats              

      connection          isns                session             status             

      help                nodename            show                stop               

      initiator           portal              start               tpgroup            

      src-filer> iscsi status

      iSCSI service is running

      src-filer> iscsi stats

      iSCSI PDUs Received

        SCSI-Cmd:        123   | Nop-Out:        33766  | SCSI TaskMgtCmd:          0

        LoginReq:          9   | LogoutReq:          2  | Text Req:                 4

        DataOut:           0   | SNACK:              0  | Unknown:                  0

        Total: 33904

      iSCSI PDUs Transmitted

        SCSI-Rsp:         18   | Nop-In:         33766  | SCSI TaskMgtRsp:          0

        LoginRsp:          9   | LogoutRsp:          2  | TextRsp:                  4

        Data_In:         111   | R2T:                0  | Asyncmsg:                 1

        Reject:            0

        Total: 33911

      iSCSI CDBs

        DataIn Blocks:         720  | DataOut Blocks:          0

        Error Status:            3  | Success Status:        120

        Total CDBs: 123

      iSCSI ERRORS

        Failed Logins:           0  | Failed TaskMgt:          0

        Failed Logouts:          0  | Failed TextCmd:          0

        Protocol:                0

        Digest:                  0

        PDU discards (outside CmdSN window): 0

        PDU discards (invalid header):       0

        Total: 0

      src-filer> iscsi sessions

      iscsi: unrecognized command "sessions"

      The following commands are available; for more information

      type "iscsi help <command>"

      alias               interface           security            stats              

      connection          isns                session             status             

      help                nodename            show                stop               

      initiator           portal              start               tpgroup            

      src-filer> iscsi session

      The following commands are available; for more information

      type "iscsi session help <command>"

      help                show               

      src-filer> iscsi session show

      Session 9

        Initiator Information

          Initiator Name: iqn.1993-08.org.debian:01:a9ce6ab66f6

          ISID: 00:02:3d:01:00:00

          Initiator Alias: ubuntu4


      src-filer>


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