User`s manual

CRU-WiebeTech
R T X 4 0 0 - Q R U s e r ’ s M a n u a l - 14 -
Q: What is the difference between recoverable and persistent errors?
A: Recoverable Errors (aka Transient Error or Disk Error) represent minute errors that the RAID system
encounters during data transfers. These errors are common for RAID setups and are not necessarily
indicative of a drive failure. It is normal for any given disk in a RAID array to occasionally encounter and
report these errors, but a string of these errors may indicate the upcoming failure of that particular disk.
Persistent Errors (aka Hard Error or Disk Failure) represent the major errors that can affect a drive and
cause it to be removed from the RAID array. This can be caused by electrical removal (e.g. drive is
physically disconnected from the controller, drive suffers electrical failure, drive loses power, etc.) or by a
failure to respond (e.g. the given disk no longer responds to commands given by the controller). In either
case, the result is a degraded RAID set and a failed disk.
Q: What should I do on a reboot when the RTX400-QR prompts me to “Re-init” the RAID?
A: If you bought an RTX400-QR without drives and you want a RAID 5 with 4 disks (default RAID type)
then simply insert your drives and select the “Re-init” (left) button on the front display. RTX400-QR will
verify the RAID 5 with 4 disks and you can select the “-Init” (left) button on the front display to set up that
RAID.
If you desire a different RAID type or disk number refer to section “4.1.2.3 RAID Tab” in the User Manual
for further instructions.
If you are simply rebooting the unit and want to return to the “Active Menu” then let the RTX400-QR
complete the start up cycle and it will arrive at the “Active Menu” momentarily. Do not press any buttons
on the front display.