Table of Contents
Advertisement
RAID Subsystem DVA-08K | Installation Manual
NOTICE!
i
When replacing a DIMM, the whole subsystem needs to be powered down. Therefore, when
replacing a DIMM, you should carefully select the time when the replacement will be made in
order to minimize the overall disruption to service.
6.4
Replacing a Faulty BBU
NOTICE!
i
The BBU is hot-swappable and can be replaced while the subsystem is running. However, a
new module will only be recognized after a subsystem reset. Carefully select the time when
the reset will be made in order to minimize the overall disruption to service.
To replace a faulty BBU, please follow these steps:
1.
2.
3.
4.
NOTICE!
i
The life expectancy of a BBU is approximately 500 cycles. Follow the procedures above to
replace an old BBU with a new BBU in order to maintain fault-tolerant subsystem functional-
ities.
6.5
Replacing a Failed PSU Module
6.5.1
Notes on PSU Module Maintenance
•
•
•
CAUTION!
Although the subsystems can operate using single PSU module, it is not advisable to run the
RAID subsystems with a single PSU module for an extended period of time.
6.5.2
Replacing the PSU Module
To replace a PSU, please follow these steps:
1.
Bosch Security Systems
Remove the faulty BBU module from the chassis. The BBU module is secured to the chas-
sis with two (2) spring screws. These screws must be loosened. To loosen, turn the
screws counterclockwise.
Install the new BBU module. After the faulty BBU module has been removed, the new
BBU module can be installed. To do this, align the BBU module with the empty slot, and
then gently push the BBU module into the slot.
Secure the BBU module to the enclosure. Tighten the two (2) spring screws on the back
of the BBU module.
Once the new BBU module is correctly installed into the subsystem, the LED should start
flashing, indicates the BBU is being charged. When the BBU is fully charged, the LED will
go off.
Two redundant PSU modules: The subsystem comes with two 350W, fully redundant, hot-
swappable PSU modules. These modules are accessed from the rear of the subsystem.
Immediate replacement: When a PSU fails, it should ideally be replaced immediately. Do
not remove the PSU module unless a replacement is readily available. Removing a PSU
without a replacement will cause severe disruptions to the internal airflow and the sub-
system will overheat, possibly causing irreparable damage to some of the subsystem
components.
PSU bracket: Each PSU module is permanently mounted in a two-level steel bracket, cre-
ating a single unit. The PSU is located in the upper level and a removable cooling fan
module is mounted in the lower level.
Turn off the PSU and remove the power cord: Turn of the power switches located on the
right side of each power supply module.
Subsystem Maintenance | en
F.01U.027.797 | V1 | 2006.05
41
Advertisement
Table of Contents
