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Hot-adding a stack of SAS disk shelves to an existing pair of FibreBridge 7600N bridges

You can hot-add a stack of SAS disk shelves to an existing pair of FibreBridge 7600N bridges that have available ports.

Before you begin

  • All of the disk shelves in the MetroCluster configuration (both the new shelves and existing shelves) must be running the same firmware version.

  • The FibreBridge 7600N bridges must be connected and have available SAS ports.

About this task

This procedure is written with the assumption that you are using the recommended bridge management interfaces: the ATTO ExpressNAV GUI and the ATTO QuickNAV utility.

You can use the ATTO ExpressNAV GUI to configure and manage a bridge, and to update the bridge firmware. You can use the ATTO QuickNAV utility to configure the bridge Ethernet management 1 port.

You can use other management interfaces, if required. These options include using a serial port or Telnet to configure and manage a bridge and to configure the Ethernet management 1 port, and using FTP to update the bridge firmware. If you choose any of these management interfaces, you must meet the applicable requirements in Requirements for using other interfaces to configure and manage FibreBridge bridges.

Attention
If you insert a SAS cable into the wrong port, when you remove the cable from a SAS port, you must wait at least 120 seconds before plugging the cable into a different SAS port. If you fail to do so, the system will not recognize that the cable has been moved to another port.
  1. Properly ground yourself.
  2. From the console of either controller, verify that your system has disk autoassignment enabled: storage disk option show

    Result

    The Auto Assign column indicates whether disk autoassignment is enabled.

    Node        BKg. FW. Upd.  Auto Copy   Auto Assign  Auto Assign Policy
    ----------  -------------  ----------  -----------  ------------------
    node_A_1             on           on           on           default
    node_A_2             on           on           on           default
    2 entries were displayed.

  3. Disable the switch ports for the new stack.
  4. Update the FibreBridge firmware on each bridge.

    If the new bridge is the same type as the partner bridge upgrade to the same firmware as the partner bridge. If the new bridge is a different type to the partner bridge, upgrade to the latest firmware supported by the bridge and version of ONTAP. See the section Updating firmware on a FibreBridge bridge.

  5. On each bridge in the pair, enable the SAS port that will connect to the new stack: SASPortEnable port-letter

    The same SAS port (B, C, or D) must be used on both bridges.
  6. Save the configuration and reboot each bridge: SaveConfiguration Restart
  7. Cable the disk shelves to the bridges:
    1. Daisy-chain the disk shelves in each stack.

      The Hardware Maintenance and Installation Guide for your expansion enclusre provides detailed information about cascading enclosure together.

      ThinkSystem Storage DM Series

    2. For each stack of disk shelves, cable IOM A of the first shelf to SAS port A on FibreBridge A, and then cable IOM B of the last shelf to SAS port A on FibreBridge B

      Fabric-attached MetroCluster installation and configuration

    Result

    Each bridge has one path to its stack of disk shelves; bridge A connects to the A-side of the stack through the first shelf, and bridge B connects to the B-side of the stack through the last shelf.
    Note
    The bridge SAS port B is disabled.
  8. Verify that each bridge can detect all of the disk drives and disk shelves to which the bridge is connected.
    If you are using the...Then...
    ATTO ExpressNAV GUI

    1. In a supported web browser, enter the IP address of a bridge in the browser box.

      You are brought to the ATTO FibreBridge home page, which has a link.

    2. Click the link, and then enter your user name and the password that you designated when you configured the bridge.

      The ATTO FibreBridge status page appears with a menu to the left.

    3. Click Advanced in the menu.

    4. View the connected devices: sastargets

    5. Click Submit.

    Serial port connectionView the connected devices: sastargets

    The output shows the devices (disks and disk shelves) to which the bridge is connected. The output lines are sequentially numbered so that you can quickly count the devices.

    Note
    If the text response truncated appears at the beginning of the output, you can use Telnet to connect to the bridge, and then view all of the output by using the sastargets command.

    Example

    The following output shows that 10 disks are connected:
    Tgt VendorID ProductID        Type        SerialNumber
      0 LENOVO   X410_S15K6288A15 DISK        3QP1CLE300009940UHJV
      1 LENOVO   X410_S15K6288A15 DISK        3QP1ELF600009940V1BV
      2 LENOVO   X410_S15K6288A15 DISK        3QP1G3EW00009940U2M0
      3 LENOVO   X410_S15K6288A15 DISK        3QP1EWMP00009940U1X5
      4 LENOVO   X410_S15K6288A15 DISK        3QP1FZLE00009940G8YU
      5 LENOVO   X410_S15K6288A15 DISK        3QP1FZLF00009940TZKZ
      6 LENOVO   X410_S15K6288A15 DISK        3QP1CEB400009939MGXL
      7 LENOVO   X410_S15K6288A15 DISK        3QP1G7A900009939FNTT
      8 LENOVO   X410_S15K6288A15 DISK        3QP1FY0T00009940G8PA
      9 LENOVO   X410_S15K6288A15 DISK        3QP1FXW600009940VERQ
  9. Verify that the command output shows that the bridge is connected to all of the appropriate disks and disk shelves in the stack.
    If the output is...Then...
    CorrectRepeat Step 8 for each remaining bridge.
    Not correct

    1. Check for loose SAS cables or correct the SAS cabling by repeating Step 7.

    2. Repeat Step 8.

  10. Cable each bridge to the local FC switches, using the cabling shown in the table for your configuration, switch model, and FC-to-SAS bridge model:

    Note
    The Brocade and Cisco switches use different port numbering, as shown in the following tables

    • On Brocade switches, the first port is numbered 0.

    • On Cisco switches, the first port is numbered 1

      .
    Configurations using FibreBridge 7600N using both FC ports (FC1 and FC2)
    DR GROUP 1
     Lenovo G6505Lenovo B6510Lenovo DB620S, Lenovo DB630SLenovo DB720
    ComponentPortSwitch 1Switch 2Switch 1Switch 2Switch 1Switch 2Switch 1Switch 2
    Stack 1bridge_x_1aFC18 8 8 10 
    FC2-8-8-8-10
    bridge_x_1BFC19-9-9-11-
    FC2-9-9-9-11
    Stack 2bridge_x_2aFC110-10-10-14-
    FC2-10-10-10-14
    bridge_x_2BFC111-11-11-17-
    FC2-11-11-11-17
    Stack 3bridge_x_3aFC112-12-12-18-
    FC2-12-12-12-18
    bridge_x_3BFC113-13-13-19-
    FC2-13-13-13-19
    Stack ybridge_x_yaFC114-14-14-20-
    FC2-14-14-14-20
    bridge_x_ybFC115-15-15-21-
    FC2--15--15-15-21
    Note
    Additional bridges can be cabled to ports 16, 17, 20 and 21 in DB620S and DB630S switches.
    Configurations using FibreBridge 7600N using both FC ports (FC1 and FC2)
    DR GROUP 2
     Lenovo DB620S, Lenovo DB630SLenovo B6510Lenovo DB720
    ComponentPortSwitch 1Switch 2Switch 1Switch 2Switch 1switch 2
    Stack 1bridge_x_51aFC126-32-32-
    FC2-26-32-32
    bridge_x_51bFC127-33-33-
    FC2-27-33-33
    Stack 2bridge_x_52aFC130-34-34-
    FC2-30-34-34
    bridge_x_52bFC131-35-35-
    FC2-31-35-35
    Stack 3bridge_x_53aFC132-36-36-
    FC2-32-36-36
    bridge_x_53bFC133-37-37-
    FC2-33-37-37
    Stack ybridge_x_5yaFC134-38-38-
    FC2-34-38-38
    bridge_x_5ybFC135-39-39-
    FC2-35-39-39
    Note
    Additional bridges can be cabled to ports 36 - 39 in DB620S and DB630S switches.
    Configurations using FibreBridge 7600N using one FC port (FC1 or FC2) only
    DR GROUP 1
     Lenovo B6505Lenovo B6510Lenovo DB620S, Lenovo DB630SLenovo DB720
    ComponentPortSwitch 1Switch 2Switch 1Switch 2Switch 1Switch 2Switch 1Switch 2
    Stack 1bridge_x_1a8 8 8 10 
    bridge_x_1b-8-8-8-10
    Stack 2bridge_x_2a9-9-9-11-
    bridge_x_2b-9-9-9-11
    Stack 3bridge_x_3a10-10-10-14-
    bridge_x_4b-10-10-10-14
    Stack ybridge_x_ya11-11-11-15-
    bridge_x_yb-11-11-11-15
    Note
    Additional bridges can be cabled to ports 12 - 17, 20 and 21 in DB620 and DB630 switches. Additional bridges can be cabled to ports 16 - 17, 20 and 21 DB720 switches.
    Configurations using FibreBridge 7600N using one FC port (FC1 or FC2) only
    DR GROUP 2
     Lenovo DB720Lenovo DB620S, Lenovo DB630SLenovo B6510
    Stack 1bridge_x_51a32-26-32-
    bridge_x_51b-32-26-32
    Stack 2bridge_x_52a33-27-33-
    bridge_x_52b-33-27-33
    Stack 3bridge_x_53a34-30-34-
    bridge_x_54b-34-30-34
    Stack ybridge_x_ya35-31-35-
    bridge_x_yb-35-31-35
    Note
    Additional bridges can be cabled to ports 32 - 39 in DB620S and DB630S switches. Additional bridges can be cabled to ports 36 - 39 in DB720 switches.
  11. If your system does not have disk autoassignment enabled, assign disk drive ownership.

    Disk and Aggregate Management Guide

    Note
    If you are splitting the ownership of a single stack of disk shelves among multiple controllers, you must disable disk autoassignment (storage disk option modify -autoassign off * from both nodes in the cluster) before assigning disk ownership; otherwise, when you assign any single disk drive, the remaining disk drives might be automatically assigned to the same controller and pool.
  12. Enable the switch ports for the new stack.
  13. Verify the operation of the MetroCluster configuration in ONTAP:
    1. Check whether the system is multipathed: node run -node node-name sysconfig -a
    2. Check for any health alerts on both clusters: system health alert show
    3. Confirm the MetroCluster configuration and that the operational mode is normal: metrocluster show
    4. Perform a MetroCluster check: metrocluster check run
    5. Display the results of the MetroCluster check:metrocluster check show
    6. Check for any health alerts on the switches (if present): storage switch show
  14. If applicable, repeat this procedure for the partner site.