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At a hypothetical site in Wafra, current footage plays normally, but the earliest day with continuous footage is advancing sooner than the administrator expected. This situation raises questions about whether the storage configuration is meeting the site's operational needs or if there is an underlying issue with the recording hardware that requires a systematic review.
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Investigating Retention Discrepancies
- Begin by recording the earliest playable date for every affected channel to see if the issue is consistent across the system. It is vital to distinguish between a gradual loss of footage at the start of the archive versus intermittent gaps appearing within days that are still currently available for playback.
- Axis documentation notes that full recording storage can cause the system to remove older recordings before the configured retention period expires. You should check the recorder's total assigned capacity and current usage levels before concluding that a physical disk drive has failed or requires replacement.
- If the change in retention coincided with adding extra cameras or modifying recording profiles, you must assess the storage impact alongside the required image detail. This helps determine if you need additional physical storage capacity or if a recording profile adjustment is necessary to balance quality and duration.
Verifying System Stability
To verify the system performance, preserve all required clips through an authorised export process before making any configuration changes. Once adjustments are applied, track the oldest playable date for an appropriate interval to check whether the actual retention period improves as expected.
Frequently asked questions
Why is my system not keeping footage for the full configured retention period?
Configured retention settings may not always be achieved when the storage volume fills up. This depends entirely on how the specific recorder handles capacity management when it reaches its maximum limit, which often results in older footage being overwritten sooner than originally intended.
Is there a difference between losing old footage and having gaps in the recording?
Losing the oldest days of footage is a different technical issue compared to finding gaps within a single retained day. You should carefully note the specific channel and exactly where the missing footage starts to help determine if the problem is storage-related or a recording interruption.
Should I lower the recording quality to extend the retention time?
Before you consider reducing recording quality to save space, you must ensure that the evidence detail required at your site will still be visible. Lowering resolution or frame rates might solve storage issues but could render the footage useless for identifying specific details or individuals.
