Rorke Data A16F-R2431 Galaxy Raid, Руководство по установке и аппаратным средствам

Страница: 24 / 110

Chapter 1: Introduction
Major Subsystem
Components 1-11
The DIMM module is accessed through an opening on the side of the
controller canister. If the need should arise for replacing the DIMM module,
please refer to Chapter 5 for details on upgrading/replacing DIMM
modules.
1.3.6 BBU
Figure 1-9: BBU
PN: GAL-9273CBTE
The Li-Ion BBU module, a shown above, can sustain cached data for days
during a power failure. The use of a BBU is highly recommended in order
to ensure data integrity. If power outage occurs, the BBU supplies power to
sustain the unfinished writes cached in memory. The BBU module is hot-
swappable.
New Feature:
The battery cell packs come with an EEPROM to record the date of
installation and other service data; and when the approximate one-year life
expectancy is reached (by checking against the real-time-clock), system
administrators will be notified for replacing the BBU.
In accordance with international transportation regulations, the BBU is only
charged to between 35% and 45% of its total capacity when shipped. After
powering on the subsystem (see Section 4.1 ) the BBU will automatically
start charging its battery cells. It usually requires approximately twelve (12)
hours for the battery to be fully charged.
If the battery is not fully charged after twelve (12) hours, a problem might
have occurred with the BBU and you should contact your subsystem vendor
for a replacement. Re-installing the BBU may sometimes correct the fault if
BBU charger has overheated and forced the charging process to halt many
times during the charging process. If the overheating conditions occurred
during the process, charge time must extend the expected seven hours.
While charging the battery, the LED on the BBU will flash slowly. You can
check battery charge using the RAIDWatch management software or
firmware configuration utility.