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Why Am I experiencing Storage Errors with Wave?

Applies to Models: All WAVE Devices

Summary:

This guide covers the most common storage-related errors a user may experience using Wisenet WAVE.

Note: Such errors are referred to as "Storage Failure" in the event log.

Error List

  1. Not Enough HDD/SSD Speed for Recording.
  2. I/O error occurred.

Error 1 - "Not Enough HDD/SSD Speed for Recording":

WAVE Servers store all video frames from every camera stream in separate memory buffers; which are written to the physical drive, according to the recording schedule.

Note: These buffers have certain reasonable limits, independently in megabytes and number of
frames.

Storage drive write speed can be affected by factors such as hardware limitations, which cause the memory buffers to overflow. When this happens, the WAVE Server has to drop the oldest packages, generating an error with the number of the dropped frames.

Note: Users can find information on the affected camera(s) in the main WAVE Server log file.

When a system is nearing or at performance limits, a users may see this message at random intervals or error logs reporting low numbers of dropped packets. These should be considered a warning as any expansion to the systems will drastically increase the number of dropped frames will drastically increase.

When this message appears a regularly, immediate action should be taken as it is possible a significant part of the footage is being persistently lost. In this case, the user should start with monitoring the write capabilities of the disk and check its state. If everything is ok and hardware issues are not observed, the solution should be the same as mentioned previously.

This error may also appear the disk completely fails.

Troubleshooting - "Not Enough HDD/SSD Speed for Recording":

When the error is intermittent:

1. Decrease incoming bitrate by changing fps/image quality and resolution.

2. Replace drives with faster ones.

3. Increase drive array to disperse recording load.

When the error appears regularly

1.Check your system to ensure that all drives are present and functioning.

Note: You can also check the health of the drives to ensure they are not failing,
such as reading the SMART error codes from the disk.

1. Begin Monitoring the write capabilities of the disk.

  • Replace if there is a hardware fault.

2. Decrease incoming bitrate by changing fps/image quality and resolution.

3. Replace drives with faster ones.

Note: For Specific Hanwha Techwin WAVE Server Hardware, please see this article.

Error 2 - "I/O Error Occurred":

This error appears if the Operating System returns a read/write error message to the WAVE Server. Depending on the setup this message might appear with the previous one and indicates major issues are occurring.

Note: There are a wide array of issues that could cause an I/O error and they should be
properly documented before contacting technical support.

Troubleshooting - "I/O Error Occurred":

Check your system for software that may be consuming large amounts of system resources, such as anti-virus, malware scanners, backup utilities, etc., which could lower the throughput and generate errors.

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