Mode – SHARKOON 5-Bay RAID-Station User Manual
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5-bay raid station
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Notes:
If one drive fails, the R1 volume is still usable. When the offline drive comes back online,
the appliance commences a rebuild process immediately to restore data redundancy. The
LED indications will notify you that a rebuild is in progress.
Although the volume remains available during the rebuild process, the volume is susceptible
to data loss through damage to the remaining drive until redundancy is restored at the
end of the rebuild and verification process. Host access takes precedence over the rebuild
process. If you continue to use the R1 volume during the rebuild, the rebuild process will
take a longer time to complete, and the host data transfer performance will also be affected.
11.6 R10 mode
Function:
The R10 mode combines the features of both the R0 and the R1 mode. Performance is
provided through the use of R0 mode, while adding the fault tolerance of R1. The
implementation of R10 requires four drives. The drives are assigned as two sets of striped
pairs. The data is written to the R1 set and provides data redundancy. Alternating blocks
of data are then striped (R0) across another R1 set. This provides improved speed. The
resulting storage capacity of the virtual R10 volume will be two times the smallest drive
capacity.
Advantage/disadvantage:
If one drive fails, the R10 volume is still usable. When the offline drive comes back online,
the appliance begins a rebuild process immediately to restore data redundancy. During
this procedure the LED indications will notify you that a rebuild is in progress.
Notes:
Although the volume remains available during the rebuild process, the volume is susceptible
to data loss through damage to the remaining drive until redundancy is restored at the
end of the rebuild and verification process. Host access takes precedence over the rebuild
process. If you continue to use the R10 volume during the rebuild, the rebuild process
will take a longer time to complete, and the host data transfer performance will also be
affected.