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8.12
Unit Life/Repair Service Period
The service life of the disk array unit and the repair service period after stopping of the production are
as shown below.
Some components (e.g., cooling fans and battery backup units) of the disk array unit need replacement
when they reach their lives. The service life of the disk array unit may become shorter than 5 years
depending on the operating environment. Therefore, the components should be replaced periodically.
For their replacement and lives, contact your maintenance service representative.
Service life of the disk array unit: 5 years (*1)
Repair service period: 5 years after stopping of the production
Note that the following disk array units may not be repaired:
Unit stained, damaged due to dropping, incorrect handling, etc.
Unit modified by the customer
Unit which has reached the end of its useful life
Unit damaged by a natural disaster (e.g., earthquake, lightning, or fire) or by an external
factor (e.g., incident)
*1 To use the disk array unit that has reached its service life, be sure to make a hardware
maintenance contract, and get the disk array unit to be overhauled (at a cost).
8.13
Disposal of Disk Array Unit
The disk array unit uses lead batteries. You should dispose of the batteries in accordance with the
regulations and rules of your local government. Contact your local government for details.
The disk array unit uses nickel-hydride batteries as battery backup units. The battery backup units are
classified into small secondary batteries (rechargeable batteries) that are to be collected according to
the rules defined by the Law for Promotion of Effective Utilization of Resources.
Ask your NEC sales representative or maintenance service representative for details. The controllers
contain lithium batteries. You are to dispose of the lithium batteries as required by local regulations.
8-23
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