EVGA Z590 FTW WIFI User Manual page 60

EVGA Z590 FTW WIFI (121-RL-E597)
Please see below for examples of what to expect when you build an array of each type.
Each RAID type will use diagrams to illustrate functional and non-functional forms of
each RAID; all green items indicate a drive that is functional, and red indicates a drive
that has failed.
BEFORE BUILDING AN ARRAY, CONFIRM THAT YOUR
SSDs OR HDDs ARE THE SAME MAKE, MODEL, AND
CAPACITY. MIXING DRIVES CAN RESULT IN ODD
PERFORMANCE ISSUES, ARRAYS DE-SYNCING, LARGE
SCALE DATA CORRUPTION, AND/OR
UNRECOVERABLE ARRAY FAILURE.
MAKE SURE THAT YOUR INTENDED HDD SUPPORTS
RAID; IF NOT, THE DRIVE MAY CAUSE CONSTANT
DESYNCRONIZATION ISSUES DUE TO DATA TTL
TIMERS NOT SENDING AN "ALL IS WELL" SIGNAL
WITHIN THE EXPECTED TIMEFRAME, WHICH WILL
SEND THE CONTROLLER THE MESSAGE THAT THE
DRIVE HAS FAILED OR DISCONNECTED.
If you are unsure about any of the bolded section above, please contact the drive
manufacturer's customer service to make sure the device is supported for RAID. If the
drive is not, the controller cannot work around it and make it function as intended.
RAID0
: This type of array is often referred to as "Striping" or a "Striped Array."
RAID0 takes a data set and spreads it equally across two (2) or more drives. The logic
behind this array is that reading a single file, for example, will be much faster if the file is
spread across two (2) or more drives and read from both drives simultaneously; thus
reducing the time each drive spends in the read process by at least 50% rather than
being read from one source. The file is then reassembled once the data hits RAM. This
is similar, in theory, to how multi-channel memory or SLI works: load balancing for
storage.
Because RAID0 is only designed to distribute the data being written across multiple
devices to improve performance there is **NO FAULT TOLERANCE**, meaning if
one drive fails, the array fails. It may be possible to recover the data but that usually
requires a data recovery service, which is not guaranteed and is usually very expensive.
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