MD Series: Pulling MD3060e EMM logs by serial connection or Telnet

When using Software Defined Storage (SDS) with the MD3060e dense JBOD, there are no external tools to help pull EMM logs.
This article helps to pull the required logs from the system by connecting to the EMMs.

Logs can be pulled through direct serial connection or through a telnet session.

Telnet Prerequisites

1. Connect a network cable to the EMM on the storage

   1. Port to the right of the red arrow
      

2. Note which EMM is connected to for future commands

   1. EMM 0 (Top) - 192.168.128.101
   2. EMM 1 (Bottom) - 192.168.128.102

Serial Prerequisites

• Get the proprietary serial cable

  • Part number CT109 or MN657
    

• Connect the cable to a serial connection on the device to be used for commands

• Connect the other end to the EMM using the indicated port below
  

Steps:

1. Open software to make a serial or telnet connection

   1. The preferred tool is Putty, as seen below

2. Create a connection to the EMM

   1. Set up logging in the tool
      
   2. Serial connections use:
      • Baud rate: 38400
      • Data bits: 8
      • Stop bits: 1
      • Parity: None
      • Flow control: None
      

3. If the connection displays a message of "already in session" when using telnet,

   1. Run the following command

      echo "q" | telnet IP address

      Example output:

      [root@localhost ~]# echo "q" | telnet 10.0.150.27
      Trying 10.0.150.27…
      Connected to 10.0.150.27.
      Escape character is '^]'.
      Connection closed by foreign host.
      [root@localhost ~]#

   2. When complete, running the command should work correctly
      Example of a good connection command:

      [root@localhost ~]# telnet 10.0.150.27
      Trying 10.0.150.27…
      Connected to 10.0.150.27.
      Escape character is '^]'.

4. Once we are correctly configured, we should see the ESM applications menu shown below

   _______________________________________________________________
   
                     ESM Applications 1 User Menu
     <Wemb1ey60 Tray 02, ESM-A, OEM 0, EBOD, FW 03.9D, Slots 60)
   _______________________________________________________________ 
           [c] Admin Interface
           [d] Dump State Capture Buffer (large)
           [e] Display Enclosure Status and Health
           [i] Display Enclosure Inventory
           [n] Display Network Configuration
           [p] Dump Configuration Profile
           [s] List Seven Segment Display Codes
           [?] HeIp
   <main>

5. Copy and paste the following commands to get all possible output

   ?
   p
   e
   i
   c
   c
   date
   bootHist
   logDump
   nvLogDump
   sasPage81Show
   ddmDataShow
   dcmShow
   dcmCmdStats
   NVDump

6. Repeat the process for each EMM for the best information