NOTICEPOTENTIAL FOR DATA LOSS.
The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure, please contact Product Support Services prior to attempting the procedure below.
Hard drive failure notifications causing a "Pred Fail" message in Digital Sentry.
Pelco Video Management
The DigitalSENTRY motherboard BIOS S.M.A.R.T. feature is detecting a hard drive is about to fail, causing a "Prediction Failure" warning in the Microsoft Windows environment.
Necessary information on the hard drive will need to be archived immediately and the hard drive will need to be replaced. This is a built-in feature of the hardware that measures when a hard drive is not performing to manufacturing specifications and will likely fail at any moment. If proper back up procedures are not taken, a degraded hard drive could result in permanent video or other information loss, or a complete system shutdown if the failing drive is a system drive and is not replaced.
If the hard drive is the C: or system drive, perform a Digital Sentry Backup and place the backup folder in a location not on that drive. A system recovery procedure will need to be performed to restore the Windows operating system and Digital Sentry software to the replacement hard drive.
How do I run DSBackup on the Digital Sentry DVR/HVR/NVS?
How to perform a recovery on the DSSRV series Network Video Recorder
If the hard drive is other than the system drive, any stored video files could be lost if not in a RAID configuration. If in JBOD configuration and video file retention is necessary, transfer the folders with files to another location (may typically require 3 to 4 TB of space) for temporary storage. And copy them to the replacement hard drive when available. Ensure the hard drive letter assignment (D:, E:, etc) is identical to the drive that needs to be replaced. Otherwise, a database rebuild procedure will need to be done to re-associate video files within the database to the new drive letter.
If the server is in a RAID configuration you may "hot swap" the hard drives as long as the RAID array is in a healthy state otherwise.
How to Find the Status of the RAID Array in a DSSRV-RD
There are a variety of third party applications that are able to confirm S.M.A.R.T. parameters for hard drives. Pelco does not endorse any specific application and references this link only as an example.
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