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Page 94 MAXX-2400HD Owner’s Manual
“Verifying” is the process by which the array controller corrects data parity errors that may
have occurred because of power loss, incorrect shutdown or some other data error. Upon
detection of a parity error, the controller will automatically start the rebuilding process as a
background task. This task should not interfere with Image Server’s ability to record or play clips.
The term “degraded” refers to the state of the Array data, not necessarily the hardware or disk
drives themselves. It indicates that the parity information that protects the data is not up to date.
Parity errors may occur if the server loses power, or is improperly shut off. No data will be
lost, but the parity re-initialization process may take several hours. NEVER disconnect AC power to
shutdown the server. Shutdown the system only by momentarily pressing the front panel power
button or selecting Start > Shutdown > Shutdown from the graphic user interface.
Note that in some cases the power may not automatically shut off after a Shutdown is
executed. When the front panel LED indicators start flashing in response to the Shutdown
command, the file system has been successfully closed and it is safe to force the power off by
holding the Reset switch in for four seconds.
A degraded array with a drive listed as “Not In Service” or “Inaccessible” is usually indicative
of a permanent drive error, typically a single disk or cable failure, but redundant data will allow
normal operations to continue. You may first try to rebuild the array with the existing drive still
installed. If the array continues to indicate a failed drive, replace the drive and then rebuild the
array. A hard disk array must be repaired using exactly the same drive model and capacity as other
drives in the array. Because specific drive models become unavailable as time goes on, 360
Systems recommends that maintenance spares be purchased at the same time as the Image Server.