User`s guide

Intel® RAID Controller RS2SG244 Hardware User’s Guide 5
— Adaptive Read Ahead: Reads ahead and caches data only if doing sequential
reads.
— I/O setting. Determines whether read operations check the cache before reading
from disks.
✧ Cache I/O: Checks cache first, only reads disk if data is not in the cache.
✧ Direct I/O: Reads data directly from disk. (not cache)
• Redundancy through:
— Configuration stored in non-volatile RAM and on the drives (COD).
— Hot-swap support.
— Optional battery backup for cache memory.