Cache Flash Memory battery life
When high temperature mode is enabled, the cache flash memory battery life
will be reduced to two-thirds of the battery life that remains at the time when
high temperature mode is enabled.
Example 1: A new cache flash memory battery has three years of usable life
when operated in a standard temperature environment. If you enable high
temperature mode when the battery is new, the battery life will be reduced to
two years.
Example 2: The storage system is used for two years at normal temperature
mode. The cache battery has one year of usable life remaining at that time. If
you enable high temperature mode, the life of the battery will be reduced to
eight months.
Cache Flash Memory battery date
When high temperature mode is enabled, the battery replacement notice
displays one year earlier than when high temperature mode is disabled.
After high temperature mode is enabled, the date of the battery replacement
notice cannot be changed back to normal, even if high temperature mode is
disabled. When high temperature mode is enabled, a confirmation message is
displayed.
Caution:
Important information about using high temperature mode.
See the
System Administrator Guide
for additional information.
•
Notify Technical Support:
Before enabling high temperature mode,
contact Hitachi Data Systems Support at
https://support.hds.com/en_us/
for updates or additional information besides the following
notes.
•
Guidelines for operating with flash module drives in high
temperature mode:
○
Do not enable high temperature mode if the system contains flash
module drives (FMDs) from an earlier generation (prior to Hitachi
Accelerated Flash FMD DC2 drives). The early generation FMDs are not
designed to operate in high temperature mode. Only enable high
temperature mode with Hitachi Accelerated Flash FMD DC2 drives.
○
Do not enable high temperature mode if the system contains a
combination of early and current generation FMDs.
•
Operating altitude:
Because thinner air will not provide sufficient cooling,
do not enable high temperature mode if the system is located above 4920
ft / 1,500 m. A storage system can operate up to 9842 ft / 3,000 m above
sea level in standard temperature mode.
•
System noise:
When the storage system is used in a high temperature
environment near 104°F / 40°C, the fans operate at high speed, increasing
system noise. See for detailed information.
20
Introduction
Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
Содержание F1500
Страница 12: ...12 Preface Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 50: ...50 Introduction Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 106: ...106 Site preparation Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 120: ...120 Troubleshooting Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 132: ...132 Specifications Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 182: ...182 System option modes Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
Страница 204: ...204 Glossary Hitachi Virtual Storage Platform G1000 G1500 and Virtual Storage Platform F1500 Hardware Guide ...
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