RAID5 SATA II – 3Gbps External Dual Ports PCI-Express Host (Raid 5, 0, 1,10 & JBOD)
RC-223 User Manual
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Q5: What is Raid1?
A5: RAID1 also known as Mirroring or SAFE. Mirroring creates an identical twin for a selected disk by
having the data simultaneously written to two disks. If a read failure occurs on one drive, the system will
read the data from the other drive. Raid1 need two drives to store the same data.
Q6: What is Raid10?
A6: RAID10 also known as RAID 0+1 or Mirrored-Striping or “SAFE and FAST”. RAID10 combine both
Striping and Mirroring technologies to provide both the performance enhancements that come from Striping
and the data availability and integrity that comes from Mirroring. There are at least four hard drives is need
for RAID10 setting.
Q7: What is RAID5?
A7: RAID5 also known as Distributed Parity RAID. RAID 5 adds fault tolerance to Disk Striping by
including parity information with the data. The data and parity information is arranged on the disk array
so that parity is written to different disks. There are at least three hard drives is need for RAID5 setting.
Q8: What is JBOD?
A8: The JBOD (Just a Bunch of Disks , also known as Contiguous) means a single logical drive that can either
be an entire disk drive or a segment of a disk drive. JBOD is the Contiguous configuration option when
creating RAID Groups (or sets) in the SATARAID5 Manager utility.
Q9: What is CONCATENATED?
A9: Concatenated also known as Big Drive, The Concatenated combines multiple disks or multiple
segments of disks into a single large disk. It does not provide any data protection or performance
improvement but can be useful for utilizing leftover space on all disks.
Q10: How to make sure RAID5 setting is ready for working?
A10: RAID5 setting may cost hours for component ready and function available, please be patient for that.
Especially if Raid5 setting by BIOS, please Click “Task Manager” to make sure there is “Green” color on the
selected components and then Raid5 setting is completed.
Q11: May use the existing used hard drive to RAID5 Card?
A11: Yes, it is workable. But, the working data on your existing used HDD may NOT work and be treated
as a blank drive when you migrate it to RAID5 Card environment.
Q12: Why Windows Device Manager can NOT detect my hard drives, but BIOS
can detect it?
