360 Systems MAXX-2420EX - Manual (Page 104)

Page 104 MAXX-2420-EX Owner’s Manual
IMPORTANT
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. While it can be caused by hardware problems, it
can also be the result of something as simple as power loss without a proper
Shutdown operation.
“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 MAXX-2420-EX’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
RESET
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
button in for four seconds.
A Degraded array with a drive listed as “Not In Use”, “Not Present” or “Inaccessible” is usually
indicative of a permanent drive error; redundant data will still 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. The
replacement must be a drive from the same model series and the same or greater 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 server.