Acer Altos R920 Series - Manual (Page 107)

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Configuring the hardware RAID
components
Altos R920 system supports SAS hardware RAID through installation of
of a SAS module. With the addition of the following components to
the SAS module enhanced RAID capability is enabled.
• RAID activation key
• RAID cache
• RAID BBU (battery backup unit)
Installing and removing the SAS module
The SAS module works with the SAS backplane board to support eight
SAS hard drives. The SAS module supports RAID levels 0, 1, 1a, and 10
without any additional components.
To install the SAS module:
1 Perform the pre-installation instructions described on page 39.
2 Remove the processor air baffle. Perform instructions described in
“To remove the processor air baffle” section on page 45.
3 Remove the SAS module from its protective packaging.
4 If you want to install a RAID activation key, RAID cache, RAID BBU
on the adapter, refer to succeeding sections for instructions.