ConnectStor II User Manual
48
The new RAID Options Status screen shows the new RAID level. Note that the array size
has doubled as a result of converting from RAID 1 to RAID 0.
WARNING
: There is no fault tolerance under RAID 0 striping. If
one drive should fail, all data from both drives will be lost. If
you are using RAID 0, backup your critical files elsewhere on
the network.
Gigabyte Boundary
The Gigabyte Boundary feature is designed for fault tolerant arrays (RAID 1) in which a
drive has failed and the user cannot replace the drive with the same capacity or larger.
Instead, the Gigabyte Boundary feature permits the installation of a replacement drive that
is slightly smaller (within 1 gigabyte) than the remaining working drive (for example, a
20.5GB drive would be rounded down to 20GB). This can be helpful in the event that a
drive fails and an exact replacement model is no longer available. Without this feature
enabled, UltraTrak will NOT permit the use of a replacement drive that is slightly smaller
than the remaining working drive.
For the Gigabyte Boundary feature to work, the Gigabyte Boundary feature must be set to
ON when the original array is created. When enabled, the Gigabyte Boundary feature
rounds the drive capacity of all drives to the common whole GB drive size. For example,
with the Gigabyte Boundary feature enabled, the remaining working drives can be
20.5GB and the replacement drive can be 20.3, since all are rounded down to 20GB. This
permits the smaller drive to be used. Please note that users will lose a small amount of
available storage capacity from each drives in order to arrive at a common drive size.
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