Backup Setup - JOBO GIGA VU SONIC Manual

3. Backup Setup

You can change Verify, Folder, Speed and Visual of backup.
Changing verification mode:
Under <Backup> on the main menu, select <Backup Setup> [ <Verify>.
Real-Time Verify:
The real-time verification performs CRC verification of data in the course
of file copying. Upon discovery of error, it will be retried. I/O error will be
reported after the retry fails. The real-time verification is supported by
hardware, so it will not influence the copying speed.
The real-time verification is applicable to equipment as follows:
SATA hard drive, CF memory card of UDMA, SD card, MMC card and MS card.
Verify HDD:
After the function of verifying hard drive is selected, for each file copied, CRC
checksum of the file will be recorded (multiple CRC checksums will be recorded for
large files). Whenever all files in a folder are copied, the system will reread the hard
drive, recalculate the CRC checksum of each file and compare it with the checksum
during copying to ascertain the copying operation is fully correct.
When the function is started, it will:
• prevent data from error and loss due to bad sectors of hard drive.
• influence copying speed, extent of which depends on the reading speed of the
hard drive.
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