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3.2.3 Enable ATAPI UDMA
Older ATAPI Devices may not support UDMA while newer ones do. Enabling this setting will allow an
ATAPI device (such as a CD-ROM drive) to use UDMA data transfer mode. This may improve the data
transfer speeds of devices other than hard drives.
3.2.4 Disable cache flushing
When data is read from or written to the drive, it is stored in the drive’s cache memory. Since reading
data from cache memory is faster than reading from the drive’s platters, enabling this setting may
sometimes result in faster data read speeds. This cache is normally flushed on a regular basis.
3.2.5 Use extended drive test time
Enabling this setting will cause the FireWire device to wait longer for the drive to respond to any given
command. This may improve compatibility with some drives.
3.2.7 Enable Large Disks
This feature will allow you to create volumes larger than 2.2TB. Each OS behaves differently with large
volumes so please read the below sections to find out how your OS works with your WiebeTech product.
3.3 RAID Tab
Supported Product: RTX400-QR
This feature of Configurator 3.0 is where RAIDs are
set up for RTX400-QR. The RAID sets up instantly
whether a RAID 0, 1, 3, 5 or 10 is selected.
3.3.1 Span Disks
Spanning disks is a method of storing data on
multiple disks that appears as one volume on your
OS. However, spanned volumes have zero fault
tolerance. That means that if a disk should happen
to fail most likely all of the data will be lost. It
provides the largest possible volume, but at the cost
of no data protection.
3.3.2 RAID Levels
Each RAID level offers different features and
performance. If you are uncertain of which RAID
level best suits your needs read over the below
sections to help you make your decision.
3.3.2.1 RAID Level 0
RAID 0 is also known as disk striping. Data is
distributed across multiple drives in the array. As with spanning, there is no data protection. However, the
data transfer rate is very high and you lose very little disk capacity. RAID 0 is capable of using 2 or 4
disks with RTX400-QR.
3.3.2.2 RAID Level 1
RAID 1 is also known as mirroring. All data is replicated on separated disks. RTX400-QR can only utilize
2 disks in a RAID 1. This solution has a very high reliability but the transfer rates are similar to a single
disk. The volume will appear as a single disk.
3.3.2.3 RAID Level 3
RAID 3 is also known as bit-interleaved parity. Data and parity information is subdivided and distributed
across all disks. RAID 3 can withstand the loss of a single disk, however it generally cannot service
multiple requests at the same time. Data reliability is slightly less than RAID 1 and transfer speeds are
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