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RAID Information
RAID Level
Select RAID Level. Options are:
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RAID 0 (Striped)
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RAID 1 (Mirror)
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RAID 5 (Single Parity)
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RAID 6 (Double Parity)
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RAID 10 ( Striped)
Chunk Size
RAID chunk size for RAID 0, RAID 5, RAID 6, and RAID 10. The default is 16K and provides
the best performance with most filesystems. For NTFS the Block Size selected when formatting
should be a multiple of the Chunk Size for best performance. For instance, for a Chunk Size of
16K, the NTFS Block Size should be set to 32K or 64K (Note: If the Block Size is set to 'Default'
when formatting the NetSwap will calcuate the best Block Size to use, if possible).
Assume Clean
Causes the Mirror to start in a clean state.
Use Write-Intent Bitmap
Check this to create a RAID (RAID 5 or 6 only) with a write-intent bitmap. A write-intent-bitmap
keeps track of changes made to the RAID that will reduce rebuild times if the device crashes or a
disk is removed and reinserted. It can degrade write performance and will not improve rebuild
speed if a disk fails and is replaced.
Use MAX Array Size Possible
Check this to create the largest RAID Disk possible with the selected disks. This will be a
multiple of the size of the smallest disk selected as shown below where N is number of disks
selected and S is the size of the smallest disk:
RAID 0 (Striped)
N * S
RAID 1 (Mirror)
S
RAID 5 (Single Parity)
(N – 1) * S
RAID 6 (Double Parity)
(N – 2) * S
RAID 10 ( Striped)
(N / 2) * S
Custom Array Size
If not using the MAX Array Size, enter the number of GB (GigaBytes) to be used for the RAID
Disk.