Acer Altos R520 manual RAID 5 optional, RAID 6

4 1 System tour

•For SATA models, the embedded SATA controller support

-Passive mid-plane board

-Six onboard SATA connectors

-Up to six hot-plug 2.5” SATA hard disk drives

-Intel Embedded Server RAID Technology capable of SATA software RAID levels:

•	RAID 0	•	RAID 10
•	RAID 1	•	RAID 5 (optional)

•For SAS models, the embedded SAS controller support

-Active mid-plane board

-Up to eight hot-plug 2.5” SAS hard disk drives

-Intel Embedded Server RAID Technology capable of SAS software RAID levels:

• RAID 0 • RAID 10

•RAID 1

-Provides optional hardware RAID support through

installation of a RAID activation key and a RAID cache on the mid-plane board. The SAS hardware RAID levels1 supported include:

•	RAID 0	•	RAID 61
•	RAID 1	•	RAID 10
•	RAID 5	•	RAID 50

Note: The active mid-plane board provides a 244-pin mini-DIMM connector, supporting a single registered ECC non-parity DDR2- 400 MHz mini-DIMM to provide RAID cache. To protect from data loss in the RAID cache in the event of power failure, you can also install a RAID BBU.

1 Supported when available.