Monitoring Storage Gateway

This topic describes how to monitor Storage Gateway file system upload activity, system health, and storage usage. The topic also describes how to view system notifications and how to receive notifications in email.

Important

Monitoring file system activity in the Storage Gateway management console consumes system resources. Monitoring file system activity is not recommended when Storage Gateway is under high load.

Monitoring Upload Activity

When you upload a file to a file system, you can view the status of the upload activity. The Activity tab shows the ongoing and pending upload activity in a file system.

To monitor upload activity
  1. Log in to the management console.
  2. Click File Systems in the upper-right corner of the management console.
  3. On the File Systems page, select a file system.
  4. Click Activity.

    You can see the upload progress of the file in the Uploading pane.

Monitoring System Health Status

You can monitor the overall system health status using System Status on the right side of the management console.

Storage Gateway performs an automated "health check" on the system to monitor the status of:

  • Storage Gateway resources and services.
  • Local storage, file system cache, metadata storage, and log storage.

System Status shows the result of Storage Gateway health analysis, either Healthy or Unhealthy.

System Status also provides information on:

  • Any system warnings or errors.
  • Local I/O Mode, which depends on local disk usage:
    • Normal

      The available disk space is greater than 10 GB in Storage Gateway. You can upload files in Storage Gateway and upload them to your Oracle Cloud Infrastructure tenancy.

    • Rejecting I/O

      The available disk space is less than 10 GB in Storage Gateway. Storage Gateway runs in protection mode and does not allow any writes to its local disk. All read operations work normally. All Storage Gateway metadata operations fail except for deletions and truncation.

      To return to Normal mode, you must wait until all ongoing upload activities complete and the files are removed from the read cache.

  • Throughput

    The approximate upload throughput to Object Storage. If there is no recent activity, Throughput shows Idle.

  • Available Read Cache

    The amount of read cache available. For optimal performance, reliability, and fault tolerance, follow the guidelines for configuring cache storage. See Configuring Local Storage for File Systems and Cache for details.

  • Pending Uploads

    The number of files or directories, for all file systems, awaiting upload to Object Storage. If Pending Uploads is 0 (zero), all files and directories have been uploaded.

Monitoring Storage Usage

You can track the storage usage and availability.

To monitor storage usage
  1. Log in to the management console.
  2. Click System in the upper-right corner of the management console.
  3. Click System Stats.

    The system data appears in three panes:

    • Local Storage
    • Local I/O
    • Local Resources

Local Storage

This pane provides a graphical representation of the amount of storage being used and the available free storage on the Storage Gateway host. You can see:

  • Available local storage.
  • Storage used for pending uploads and preserved cache files.
  • Storage used for metadata.
  • Storage used for logging.
  • Storage used for other applications.

Local I/O

This pane displays the local I/O mode of Storage Gateway based on the local disk space usage on the Storage Gateway host.

Local Resources

This pane shows the overall memory usage and availability for Storage Gateway from the following fields:

  • Available Cores: The number of CPUs being used by Storage Gateway.
  • Maximum Memory Available to Storage Gateway: The total RAM available for Storage Gateway.
  • Memory Used by Storage Gateway: The amount of memory being used by the file systems in Storage Gateway.
  • Free Memory: The amount of free RAM available in Storage Gateway host.

Viewing System Notifications

The System Notifications tab shows system notifications and helps you track overall system performance.

To view system notifications
  1. Log in to the management console.
  2. Click System in the upper-right corner of the management console.
  3. Click System Notifications.

    You can view a list of warnings or critical system notifications.

Configuring Email Notification

You can configure Storage Gateway to notify you by email about system health and Cloud Sync job completion.

To configure email notification
  1. Log in to the management console.
  2. Click System in the upper-right corner of the management console.
  3. Click System Notifications.
  4. If email notifications are not yet configured, click Click here to configure.
  5. Enter the required information for the following fields:

    • SMTP server.
    • Email addresses to receive notifications.
  6. Click Show Advanced Options and enter the required information in the advanced configuration fields:

    • SMTP port.
    • SMTP User name.
    • SMTP Password.
    • Sender’s Email Address.

      The default value is: noreply@oracle.com

  7. Click Save.
  8. Click Test Email Notification to verify that the specified email address receives a system notification email.