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G- and K-Series User’s Guide
9-12
The example below shows a disk channel error displaying the hexadecimal code. See
Table 9-5 below for a list of error code descriptions. Most disk channel errors are
informational since the controller issues retries to correct any problem. Errors that
cannot be corrected with retries will result in another critical event describing the
affected disk array (if any).
Table 9-5. Disk Channel Error Codes
Error Code Description
04 Data overrun or underrun occurred while getting sense data
05 Request for sense data failed
20 Selection timeout (displayed as "Sel Timeout")
21 Controller detected an unrecoverable protocol error on the part of the
target
22 Unexpected bus-free condition (displayed as "Unex Bsfree")
23 Parity error on data received from a target (displayed as "Parity Err")
24 Data overrun or underrun has been detected (displayed as “Data
OvUnRn”)
30 Target reported busy status (displayed as “Device Busy”)
31 Target reported queue full status (displayed as “Queue Full”)
32 Target has been reserved by another initiator
40 Controller aborted an I/O request to this target because it timed out
(displayed as "I/O Timeout")
41 I/O request was aborted because of a channel reset
42 I/O request was aborted because controller's decision to reset the
channel
Disk Channel SCSI ID
Error Code