HP ML150 HP ProLiant ML100 Series Server User Guide - Page 33

Caution, Important

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CAUTION: After the server is powered down, wait 15 seconds and then check the amber LED before unplugging the cable from the cache module. If the amber LED blinks after 15 seconds, do not remove the cable from the cache module. The cache module is backing up data, and data is lost if the cable is detached. IMPORTANT: The battery pack might have a low charge when installed. In this case, a POST error message is displayed when the server is powered up, indicating that the battery pack is temporarily disabled. No action is necessary on your part. The internal circuitry automatically recharges the batteries and enables the battery pack. This process might take up to four hours. During this time, the cache module functions properly, but without the performance advantage of the battery pack. NOTE: The data protection and the time limit also apply if a power outage occurs. When power is restored to the system, an initialization process writes the preserved data to the hard drives. To install the component: 1. Power down the server (on page 7). 2. For ML110 G6 servers, extend the server from the rack. 3. For ML150 G6 servers, do one of the following: o Unlock and remove the bezel ("Remove the tower bezel (ML150 G6 servers)" on page 8). o Extend the server from the rack. 4. Remove the access panel (on page 7). 5. Install the storage controller, if not installed ("Installing a storage controller" on page 32). 6. Install the cache module on the controller. Hardware options installation 33

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Hardware options installation 33
CAUTION:
After the server is powered down, wait 15 seconds and then check the amber LED
before unplugging the cable from the cache module. If the amber LED blinks after 15
seconds, do not remove the cable from the cache module. The cache module is backing up
data, and data is lost if the cable is detached.
IMPORTANT:
The battery pack might have a low charge when installed. In this case, a POST
error message is displayed when the server is powered up, indicating that the battery pack is
temporarily disabled. No action is necessary on your part. The internal circuitry automatically
recharges the batteries and enables the battery pack. This process might take up to four
hours. During this time, the cache module functions properly, but without the performance
advantage of the battery pack.
NOTE:
The data protection and the time limit also apply if a power outage occurs. When
power is restored to the system, an initialization process writes the preserved data to the hard
drives.
To install the component:
1.
Power down the server (on page
7
).
2.
For ML110 G6 servers, extend the server from the rack.
3.
For ML150 G6 servers, do one of the following:
o
Unlock and remove the bezel ("
Remove the tower bezel (ML150 G6 servers)
" on page
8
).
o
Extend the server from the rack.
4.
Remove the access panel (on page
7
).
5.
Install the storage controller, if not installed ("
Installing a storage controller
" on page
32
).
6.
Install the cache module on the controller.