Disk Channel Errors - Adaptec DuraStor 6200SR User Manual

Disk Channel Errors

Disk channel errors are similar to disk-detected errors, except they
are detected by the controller, instead of the disk drive. Some disk
channel errors are displayed as text strings, others are displayed as
hexadecimal codes.
Figure 7-2 shows a disk channel error displaying the hexadecimal
code. Table 7-5
errors are informational because 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).
Disk Channel
Figure 7-2. Disk Channel Error Example
Table 7-5. Disk Channel Error Codes
Error Code
04
05
20
21
22
23
24
30
31
32
40
lists the error code descriptions. Most disk channel
SCSI ID
Description
Data overrun or underrun occurred while getting sense
data.
Request for sense data failed.
Selection timeout occurred (displayed as Sel Timeout).
Controller detected an unrecoverable protocol error on
the part of the target.
Unexpected bus-free condition occurred (displayed as
Unex Bsfree).
Parity error on data was received from a target
(displayed as Parity Err).
Data overrun or underrun has been detected
(displayed as Data OvUnRn).
Target reported Busy status (displayed as Device
Busy).
Target reported Queue Full status (displayed as Queue
Full).
Target has been reserved by another initiator.
Controller aborted an I/O request to this target because
it timed out (displayed as I/O Timeout).
Troubleshooting
Error Code
7-11