Hardware options installation 63
also apply if a power outage occurs. When power is restored to the system, an initialization process writes
the preserved data to the storage drives.
CAUTION: The cache module connector does not use the industry-standard DDR3
mini-DIMMs. Do not use the controller with cache modules designed for other controller
models, because the controller can malfunction and you can lose data. Also, do not transfer
this cache module to an unsupported controller model, because you can lose data.
CAUTION: To prevent a server malfunction or damage to the equipment, do not add or
remove the battery pack while an array capacity expansion, RAID level migration, or stripe size
migration is in progress.
CAUTION: After the server is powered down, wait for 30 seconds, and the
LED before unplugging the cable from the cache module. If the amber LED flashes after 30
seconds, do not remove the cable from the cache module. The cache module is backing up
data. Data will be lost if the cable is detached when the amber LED is still flashing.
Storage controller installation guidelines
The table below shows the PCIe riser board slots compatible with the the HBAs and storage controllers
supported by this server.
PCIe slot
number
P440 P441 H240 H241 P840 P841
* In 12-bay LFF hot-plug drive models with redundant fan configuration, this controller/HBA is not supported in this
slot.
More Information
Rear panel components (on page 11)
PCIe riser board slot definitions (on page 12)
Installing the storage controller and FBWC module options
To install the component:
1. Power down the server (on page 20).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Do one of the following:
o Extend the server from the rack (on page 20).
o Remove the server from the rack (on page 22).
4. Remove the access panel (on page 24).
5. Remove the PCI riser cage ("Remove the PCI riser cages" on page 26).
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