NEC N8551-29F, Инструкция по эксплуатации

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34 AIT Data Cartridge
Storing Important Data
When storing important data or programs, it is strongly recommended that you should prepare and
store the master tape and copy (backup) tape just in case.
Further, we recommend that you verify backup software when saving, and check saved data. For
details on verification, refer to the instruction manual for the backup software you are using.
By doing this, if one of the tapes causes a read error due to dust or dirt, you can recover the data
from the other tape. Thus, you can prevent loss of important data and programs.
Managing 3-generation Data
To store the data on the disk, you should manage the data in the three generations.
To manage the 3-generation data, use three tapes (A, B, C). On the first day, store the data on the
disk in tape A. On the second day, store the data in tape B. On the third day, store the data in tape
C.
This method allows you to protect your important data. For example, if tape C generates a read
error, you can use tape B to recover the data. If tape B generates a read error, you can use tape A
to recover the data.