Panasonic WJ-ND400K Operating Instructions - Page 86
HDD Fault Tolerance System, Encryptin, Data Recorded on the HDDs, are from RSA Security Inc.
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HDD Fault Tolerance System RAID 6 A 1 B 1 C 1 P 1 Q 1 A 2 B 2 P 2 Q 2 C 2 A 3 P 3 Q 3 B 3 C 3 P 4 Q 4 A 4 B 4 C 4 The RAID function makes it possible to improve the HDD's tolerance to errors. This product is equipped with the RAID6 mode that can recover image data when two HDDs fail, in addition to the RAID5 mode that can recover image data (RAID6 has two sets of error correcting code data). This prevents loss of recorded image data on large volume HDDs (refer to the Setup Instructions (PDF file). Note: • To use the RAID5 mode you need to connect 3 or more HDDs, the RAID6 mode requires 4 or more HDDs. • Theoretical volume when RAID5 mode enabled Theoretical volume = HDD with smallest capacity in the unit x (number of HDDs in the unit −1) • Theoretical volume when RAID6 mode enabled Theoretical volume = HDD with smallest capacity in the unit x (number of HDDs in the unit −2) • The capacity of the HDDs that are installed may be a few percents smaller. Encrypting Data Recorded on the HDDs The image and audio data recorded on the HDDs is encrypted. The image and audio data on the HDDs cannot be played except on the recorder. The recorder uses RSA® BSAFE™ software from RSA Security Inc. Outline of Functions 17