Storing Important Data; Managing 3-Generation Data - NEC N8151-101 User Manual

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Although the tape service life, which is determined by this deterioration, various greatly
depending on the tape storage environment (humidity, temperature), the tape is generally
serviceable for about five years since you purchase, even it is not used.

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 cartridges causes a read error due to dust or dirt, you can
recover the data from the other cartridge. 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 cartridge A. On the second day, store the data in cartridge B. On the
third day, store the data in cartridge C.
This method allows you to protect your important data. For example, if cartridge C
generates a read error, you can use cartridge B to recover the data. If cartridge B
generates a read error, you can use cartridge A to recover the data.