Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 47)

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User's Manual - 47
Hot Swap
A hot swap is the manual replacement of a defective drive unit while the computer is still
running. When a new drive has been installed, a Rebuild operation occurs automatically if these
situation occurs:
• The newly inserted drive is the same capacity as or larger than the failed drive.
• The newly inserted drive is placed in the same drive bay as the failed drive it is replacing.
The RAID controller can be configured to detect the new drives and rebuild the contents of the
drive automatically.
Parity Type Description
Online A drive that can be accessed by the RAID controller and is part of the virtual drive.
Unconfigured Good A drive that is functioning normally but is not configured as a part of a virtual drive or as a
hot spare.
Hot Spare A drive that is powered up and ready for use as a spare in case an online drive fails.
Failed A drive that was originally configured as Online or Hot Spare, but on which the firmware
detects an unrecoverable error.
Rebuild A drive to which data is being written to restore full redundancy for a virtual drive.
Unconfigured Bad A drive on which the firmware detects an unrecoverable error; the drive was Unconfigured
Good or the drive could not be initialized.
Missing A drive that was Online but which has been removed from its location.
Offline A drive that is part of a virtual drive but which has invalid data as far as the RAID
configuration is concerned.
Shield State An interim state of physical drive for diagnostic operations.
Copyback A drive that has replaced the failed drive in the RAID configuration.
Drive States
A drive state is a property indicating the status of the drive. The drive states are described in the
following table.