Viewing information about an appliance Storage Node

You can view information about a StorageGRID Webscale appliance Storage Node at any time. For example, you might want to review appliance-specific information to ensure correct configuration and status.

Before you begin

About this task

Each StorageGRID Webscale appliance is represented as one Storage Node.

The StorageGRID Webscale appliance Storage Node lists information about service health and all computational, disk device, and network resources. You can also see memory, storage hardware, network resources, network interfaces, network addresses, and receipt and transmittal information.

Steps

  1. Select Grid.
  2. Select an appliance Storage Node.
  3. Select SSM > Resources.

    SSM > Resources > Overview tab
  4. In the Memory section, note the information in the Installed Memory field.
  5. In the Processors section, note the information in the Processor Number column.
    The appliance in the example has twelve E5-1428L v2 cores (six physical cores with 2:1 hyperthreading enabled).
  6. In the Disk Devices section, note the Worldwide Names for the disks in the appliance.

    SSM > Resources > Disk Devices

    The Worldwide Name for each disk matches the volume world-wide identifier (WWID) that appears when you view standard volume properties in SANtricity software (the management software connected to the appliance's storage controller).

    To help you interpret disk read and write statistics related to volume mount points, the first portion of the name shown in the Device column of the Disk Devices table (that is, sdc, sdd, sde, and so on) matches the value shown the Device column of the Volumes table on the SSM > Resources page.

  7. Review the Storage Hardware section to see more about the StorageGRID Webscale appliance.

    This section appears only if the Storage Node is an appliance.
    SSM > Resources > Overview tab for appliance

    Field Description
    Storage Controller Name The name for this StorageGRID Webscale appliance shown in SANtricity software.
    Storage Controller Management IP IP address for management port 1 on the storage controller.

    You use this IP to access SANtricity software to troubleshoot storage issues.

    Storage Controller Model The type of enclosure used for the appliance: 2u12 is two rack-units high with 12 drives, 4u60 is four rack-units high with 60 drives.
    Storage Controller WWN The worldwide identifier of the storage controller, as shown in SANtricity software.
    Storage Appliance Chassis Serial Number The serial number for the appliance.
    Software Platform The software platform used to generate the storage hardware status and alarms.
    Overall Power Supply Status

    The status of power to the StorageGRID Webscale appliance.

    Power Supply A Status

    Power Supply B Status

    The status of power supplies A and B in the StorageGRID Webscale appliance.

    CPU Temperature

    The temperature of the CPU in the compute controller.

    Module Temperature

    The temperature of the compute controller.

    Multipath State The current multipath I/O state of the physical paths, for example, Simplex or Nominal. If one of the connections between the two controllers is not operational, "Simplex" appears and performance and fault tolerance are impacted. If both paths are not operational, the appliance stops working.

    For details about resolving performance or fault tolerance issues, refer to the E-Series documents.

    Storage Controller Status

    The overall status of the storage controller.

    If the Storage Node is a StorageGRID Webscale appliance and it needs attention, then both the StorageGRID Webscale and SANtricity systems indicate that the storage controller needs attention.

    If the status is "needs attention," first check the storage controller using SANtricity software. Then, ensure that no other alarms exist that apply to the compute controller.

  8. In the Storage Hardware section, confirm that all statuses are "Nominal."
    The statuses in this section correspond to the following alarm codes.
    Field Alarm code
    Overall Power Supply Status OPST
    Power Supply A Status or Power Supply B Status PSAS or PSBS
    CPU Temperature CPUT
    Module (Board) Temperature BRDT
    Storage Controller Status SOSS

    For details about alarms in StorageGRID Webscale, see the Troubleshooting Guide.

  9. Use the Network Resources, Network Interfaces, and Network Addresses sections to see IP addresses and status information for each network.
    Network Interface name Physical port name
    Grid eth0 hic2 and hic4

    The Grid Network connects to the 10/25-GbE (optical) network ports on the compute controller. Port 2 is named hic2, and port 4 is named hic4.

    Admin eth1 mtc1 and mtc2

    The Admin Network connects to the leftmost 1-Gb (RJ-45) Ethernet port on the compute controller. Port 1 is named mtc1. Port 2 (mtc2) is used only for installation and service operations.

    Client (optional) eth2 hic1 and hic3

    The Client Network connects to the 10/25-GbE (optical) network ports on the compute controller. Port 1 is named hic1, and port 3 is named hic3.


    SSM > Resources > Overview tab
    You can use the Speed column in the Network Interfaces table to determine whether the 10/25-GbE network ports on the appliance were configured to use active/backup mode or LACP mode. In the following example, the Grid Network (eth0, highlighted in blue) is using active/backup mode and has a speed of 10 gigabits (equals the speed of hic2, the active port for that network). In contrast, the Client Network (eth2, highlighted in yellow) is using LACP mode and has a speed of 20 gigabits (equals the combined speed of hic1 and hic3).

    See the Hardware Installation and Maintenance Guide for your appliance for more information about configuring the 10/25-GbE ports.

  10. Use the Receive and Transmit sections to see how many bytes and packets have been sent and received across each network and to see various receive and transmission metrics.
    The following example shows active/backup mode being used for the Grid Network (see the eth0, hic2, and hic 4 entries, highlighted in blue), and LACP mode being used for the Client Network (see the eth2, hic1, and hic3 entries, highlighted in yellow). Note that no bytes and packets were transmitted by hic4, all received packets on hic4 have been dropped, and the total packet counts for eth0 and hic2 are approximately the same. In contrast, data is being sent and received by hic1 and hic3.

    Receive and Transmit sections of SSM > Resources > Overview tab for an appliance