IEI Technology PCIE-Q870-i2, User Manual

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PCIE-Q870-i2 PICMG 1.3 CPU Card
Page 160
F.1 Introduction
The PCIE-Q870-i2 can provide data protection for serial ATA (SATA) disks via the Intel®
Matrix Storage Manager using one of three fault-tolerant RAID levels: RAID 1, 5 or 10.
When using two hard drives, matrix RAID allows RAID 0 and RAID 1 functions to be
combined, where critical files can be stored on RAID 1, and RAID 0 can be used for
non-critical items such as software. RAID 5 and RAID 0 can be combined to provide
higher performance, capacity, and fault tolerance.
CAUTION!
A configured RAID volume (which may consist of multiple hard drives)
appears to an operating system as a contingent storage space. The
operating system will not be able to distinguish the physical disk drives
contained in a RAID configuration.
F.1.1 Precautions
One key benefit a RAID configuration brings is that a single hard drive can fail within a
RAID array without damaging data. With RAID1 array, a failed drive can be replaced and
the RAID configuration restored.
WARNING!
Irrecoverable data loss occurs if a working drive is removed when
trying to remove a failed drive. It is strongly recommended to mark the
physical connections of all SATA disk drives. Drive locations can be
identified by attaching stickers to the drive bays. If a drive member of a
RAID array should fail, the failed drive can then be correctly identified.