Compute module waits in PXE boot mode due to unavailability of OS volume from Image Streamer

Symptom

After a downtime, the compute module powers on but waits in PXE boot mode.

Cause
When the enclosure is powered on after a downtime, the compute module powers on immediately, but the Image Streamer appliance requires 15-20 minutes to boot. During this time, HPE iLO does not add the OS volume to the booting sequence. If you attempt to boot the compute module before Image Streamer is ready, the boot fails or causes the compute module to wait in PXE boot mode.
NOTE:

To avoid this issue, wait for 30 minutes after Image Streamer is powered on before booting the compute modules.

Action
  1. Identify if the Image Streamer appliance is available using any or all of the following steps:
    1. Navigate to the Server Profile page in HPE OneView user interface. The Server Profile page displays an alert about the unavailability of the OS volume. Wait for the alert to clear.
    2. Verify if the OS deployment server State displays Connected on the OS Deployment Servers screen in HPE OneView user interface.
    3. Verify if the Image Streamer appliance details are displayed in the Deployment Appliances screen in Image Streamer user interface.
    4. Verify if the Volume bar displays the available storage space for new OS volumes and the expanded Golden Images. The Volume bar can be seen in the Deployment Appliances screen in Image Streamer user interface.
    5. Navigate to the OS Volume page in the Image Streamer user interface. The OS Volume page displays an alert about the availability of the OS volume. Wait for the alert to clear.
    6. Verify if the following alert is displayed during the boot sequence: Unable to read storage system details. Wait for the alert to clear.
  2. Reboot the compute module using the HPE OneView user interface.