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Venus T5c Series
2.6 Parity Protection
XOR engine in T5 generate parity block. In RAID 3 mode, Parity Block will be stored in the same hard
drive. While in RAID 5 mode, Parity Block will be spread over all of the different hard drives.
T5 will also make use of same size disk space in each hard disk under RAID 3/5 condition. ( Failure
in a hard disk will cause T5 enter degrade mode. Host controller still could read/write data thru T5
normally without knowing any defects. Users have to replace the defective hard disk. T5 then will enter
on-line-auto-rebuild mode automatically.)
2.7 Normal Mode (Single)
Normal mode means all of the configured hard drives exist and T5 is not in rebuild condition. User can see
the original hard drives from the host which supports port multiplier technology. (If the host does not
support port multiplier, then you will find only one hard drive on operating system. The RAID tool is
useful in this case.)
