Unit Life Span And Maintenance Period - RAID Xanadu User Manual

16.4

Unit Life Span and Maintenance Period

The unit life span and maintenance period after production ends for the disk array unit are as
follows.
Parts used in the disk array unit include parts that must be exchanged due to their life spans (such as
cooling fans and battery backup units). Since life spans may be shorter than five years depending on
the environment in which the disk array unit is used, it is recommended that parts be exchanged
regularly. Contact your maintenance service agent regarding exchanges and life spans.
Unit life span: 5 years
Maintenance period: 5 years after production ends
Caution: If you continue to use the unit past the unit life span, be sure to perform overhaul (for a
fee) in addition to contracted hardware maintenance. Overhaul can be done only once.
Note that repair may not be possible in the cases below. Moreover, a fee may be charged even if
within the warranty period.
Stained goods, dropped goods, goods damaged by mishandling
Goods damaged by mishandling in storage or shipping
Items touched by the user
Items whose life spans are over
Goods damaged by reason of earthquake, lightning, fire, or other disaster, and goods damaged
due to an accident or other external cause
Parts that have life spans
Fan (Power supply): 50,000 hours
Battery: 5 years
Extended BBU: 5 years
Caution: As backup frequency increases, the battery life span of this unit becomes shorter. This
life span is calculated considering only accidental power disconnection such as power
outage. Be sure to turn of the power according to the proper power-off procedure.
The battery life span of this unit also becomes shorter when it is used at high
temperatures. The life span is about five years when the unit is used under conditions in
which the ambient temperature is 25°C (77°F), but will be reduced to approximately half
(about two years and six months) when the ambient temperature rises by 10°C
(18°F).
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