Handling Of Disk Array Unit; Notes On Handling Of Disk Array Unit - NEC NF2300-SR412E User Manual

7. HANDLING OF DISK ARRAY UNIT

This chapter describes how to handle the disk array unit.
7.1

Notes on Handling of Disk Array Unit

Note the following in use of the disk array unit. Invalid handling of the disk array unit
may cause the unit to be defected and/or some data to be broken.
If the ACCESS LED (green) flashes, the disk access operation is indicated
on the host system, or the initialization is being operated, do not turn
on/off the powers of the disk array unit or host system. Do not reset the
host systems.
If the ACCESS LED (green) lights or flashes and the disk access
operation is indicated on the host system, do not give vibrations and
shocks to the disk array unit.
Because the disk array unit is a precision device, it shall not be subject to
hard vibration or shock.
The features of the disk array unit are effective only for the hardware failure
(e.g., the hard disk is physically damaged or inoperative). The software failure
(e.g., the data is lost or rewritten due to program excursion) is not covered by
these features. When the software failure would occur, the system could
seriously be damaged. To minimize the damage, be sure to back up the data
periodically.
It is recommended that important files are backed up to magnetic tapes. This
enables the damage to be minimized in case of emergency including sudden
vibration or shock and power shutdown caused by power interruption.
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