Troubleshooting
Problem
SCSI and non-SCSI POST error codes explained
Resolving The Problem
This section contains an explanation of the encoded SCSI and non-SCSI POST error codes and detailed information about each code.
Error messages are displayed on the screen as three, four, five, eight, twelve, or thirteen digits. An 'X? in an error message can be any number. The shorter POST errors are highlighted in the Symptom-to-FRU Index. Some digits will represent different information for SCSI errors versus non-SCSI errors.
The following figure shows which digits display the shorter POST errors. The figure also defines additional SCSI information.
RDDDPLSCB QEET
Test state
Error codeE xtension
Qualifier
Bus (0=internal 1=external)
Capacity of the device
Slot number of the device
LUN (usually 0)
PUN (SCSI ID #)
Device Number
Reserved Digit (usually 0)
NOTES:
1. Non-IBM device error codes and documentation supersede this list.
2. Duplicate SCSI ID settings will cause misleading error symptoms or messages.
For example, SCSI error code 0210501A0 decodes as follows:
| Digit | Information |
| 0 | Reserved digit (usually 0) |
| 210 | Device number 210 indicates hard disk |
| 5 | SCSI ID assigned is 5 |
| 0 | Logical Unit Number (not used, usually 0) |
| 1 | The adapter is installed in slot 1 |
| A | The device capacity is 60MB (A = 60MB) |
| 0 | The device is connected to the internal bus |
RDDD Codes for Adapters
| RDDD | Device Type or Information |
| 0037 | SCSI on the system board |
| 0096 | SCSI adapter with cache |
| 0112 | SCSI adapter without cache |
| 0206 | SCSI-2 adapter |
RDDD Codes for Devices
| RDDD | Device Type or Information |
| 0208 | Unknown device type |
| 0209 | Direct access - removable media, and/or other than 512 byte blocks |
| 0210 | Direct access - hard disk, 512 byte blocks |
| 0211 | Sequential access (tape) |
| 0212 | Printer |
| 0213 | Processor |
| 0214 | Write Once, Read Multiple (W.O.R.M.) |
| 0215 | Read only (CD-ROM) |
| 0216 | Scanner |
| 0217 | Optical memory (read/write optical disk) |
| 0218 | Changer (multiple tray CD-ROM) |
| 0219 | Communications |
B Codes
| B | Device Type or Information |
| 0 | Dual SCSI adapter (internal bus) |
| 1 | Dual SCSI adapter (external bus) |
QEET 0000 Codes
Refer to this list if the 'DDD? indicates an adapter, followed by a QEET of 0000. For example, 0 1120100 0000.
| PLSC | QEET | Information |
| 0100 | 0000 | On systems with NVRAM, SCSI setup data not located, or the checksum did not verify. On systems without NVRAM (Model 50 for example), setup data must be on the 1st hard disk. |
| 0200 | 0000 | Configuration error. No hard disk found at PUN 6, LUN 0 for 161,162,165 system error path. Might be an unsupported configuration. |
| 0300 | 0000 | No space available in extended BIOS data area for SCSI data table (possibly too many adapters installed). |
| 0400 | 0000 | ROM modules not found on adapter (IML-based systems only). Running setup might correct it. |
| 0500 | 0000 | ROM checksum error on second 16K portion of 32K ROM |
| 0600 | 0000 | ROM access control port error |
QEET Errors (other than 0000)
These are specific 'QEET? error codes (preceded by a 'DDD? indicating an adapter).
NOTE:
A number in slot 'S? indicates an error on the adapter, (or device attached to the adapter) in slot 'S.? If 'S? is 0, suspect the system board.
| QEET | Information |
| 001x | 8032/80188/80C186 ROM test failure |
| 002x | Local RAM test failure |
| 003x | Bad fuse, or bad termination, or local RAM address failure on SCSI adapter if ?RDDD? is 0112 |
| 004x | Internal peripheral test failure |
| 005x | Buffer control chip test failure, or LTB failed, (or system-board SCSI failed if ?RDDD? is 0037) |
| 006x | Undefined error condition, or buffer RAM test failure on SCSI adapter if ?RDDD? is 0096 |
| 007x | System interface control chip test failure |
| 008x | SCSI internal interface test failed |
| 00Ax | SCSI external interface test failed |
| 107x | Adapter hardware failure |
| 10Cx | Command failed |
| 10Ex | Command error (invalid command or parameter) |
| 10Fx | Sequencing error |
| 110x | Adapter internal error log contains entries. (Reported if no other errors on adapter exist.) |
| 180x | Time out |
| 181x | Adapter busy error |
| 182x | Unexpected interrupt presented by adapter |
| 183x | Adapter register test failure |
| 184x | Adapter reset failure |
| 185x | Adapter buffer test failure (on cached adapters) |
| 186x | Adapter reset count expired |
| 187x | Adapter registers not cleared on reset |
| 188x | Card ID in adapter microcode did not match ID in POS registers |
| 190x | Expected device did not respond |
| 19Yx | DMA arbitration level conflict (Y = assigned arbitration level) |
| 220x | Adapter hardware error |
| 221x | Global timeout on adapter (device did not respond) |
| 222x | Adapter DMA error |
| 223x | Adapter buffer defective |
| 224x | Command aborted by adapter |
| 301x | Invalid parameter in SCB |
| 303x | Command not supported |
| 304x | Command aborted by system |
| 305x | Command rejected (buffer not disabled) |
| 306x | Command rejected (Adapter diagnostic failure) |
| 307x | Format rejected |
| 308x | Assign rejected (command in progress) |
| 309x | Assign rejected (device already assigned) |
| 30Ax | Command rejected (device not assigned) |
| 30Bx | Command rejected (maximum logical block address, LBA, exceeded) |
| 30Cx | Command rejected (16-bit card slot address range exceeded) |
| 313x | Invalid device for command |
| 3FFx | Status not returned by adapter |
| 401x | Recovered error (not an error condition) |
| 402x | Device not ready |
| 403x | Device medium error |
| 404x | Device hardware error |
| 405x | Illegal request for device |
| 406x | Device unit attention would not clear |
| 407x | Device data protect error |
| 409x | Device vendor unique error |
| 40Ax | Copy operation aborted by device |
| 40Bx | Device command aborted |
| 40Cx | Device search data command satisfied |
| 40Dx | Device volume overview (residual data remains in buffer) |
| 40Ex | Device mismatch (source data did not match medium data) |
| 500x | Check condition on device, no sense data returned |
| 501x | No index or sector |
| 502x | Seek incomplete |
| 503x | Write fault |
| 504x | Drive not ready |
| 505x | Drive not selected |
| 506x | No track zero found |
| 507x | Multiple drives selected |
| 508x | Logical unit communication failure |
| 509x | Head positioning error (track following error) |
| 510x | CRC or ECC error on ID field |
| 511x | Unrecoverable read error |
| 512x | No address mark (ID field) |
| 513x | No address mark (data field) |
| 514x | Record not found |
| 515x | Seek error |
| 516x | Data synchronization error |
| 517x | Recoverable read (without ECC) error |
| 518x | ECC recovered read error |
| 519x | Defect list error |
| 51Ax | Parameter overrun |
| 51Bx | Synchronous transfer error |
| 51Cx | Primary defect list not found |
| 51Dx | Compare error |
| 520x | Invalid command |
| 521x | Illegal logical block address (LBA) |
| 522x | Illegal function for device type |
| 524x | Illegal command block field |
| 525x | Invalid LUN |
| 526x | Illegal field in parameter list |
| 528x | Media changed |
| 529x | Power-on or bus device reset occurred (not an error) |
| 52Ax | Mode select parameters changed (not an error) |
| 531x | Medium format corrupted |
| 532x | Defect spare location unavailable |
| 540x | Device RAM failure |
| 541x | Data path diagnostic failure |
| 542x | Power-on diagnostic failure |
| 543x | Message rejected |
| 544x | Internal controller error |
| 545x | Device was unable to reconnect |
| 547x | Interface parity error |
| 548x | Initiator detected error |
| 549x | Illegal command or command out of sequence error |
| 5F0x | Format in progress (not an error) |
| 5F1x | Spinup in progress |
| 601x | SCSI bus reset occurred |
| 602x | SCSI interface fault |
| 610x | Selection timeout error (device not available) |
| 611x | Unexpected bus free |
| 612x | Mandatory SCSI message rejected |
| 613x | Invalid SCSI phase sequence |
| 620x | Short length record error |
| 702x | Device not ready (removable media devices) |
| 704x | Device not ready (non-removable media devices) |
| 728x | Media changed error would not clear |
| 731x | Medium format corrupted (format unit interrupted - format must be issued again) |
| 7F0x | Format in progress (prior format unit issued being completed) |
| 7F1x | Spinup in progress |
Q Codes
All error codes with 'Q? = 1 are developed using information returned by either an adapter or device. The 'Q? value defines the origin of the 'EE? code that is reported. Error codes (EE) with 'Q? = 4 or 5 might be reported that are not listed here or can actually have a definition other than that given, depending on the device.
| 'Q? | Information |
| 2 | Command error field of command complete status block returned by the adapter |
| 3 | SCSI Status field of the command complete status block or command error field values indicating software problems (< 20H) |
| 4 | Sense key value returned by a device |
| 5 | Additional sense byte (byte 12) of sense information from device |
| 6 | Device error code field of command complete status block |
| 7 | Device errors not normally considered an error, but considered an error based on when the code was returned (medium corrupted error on device with non-removable media) |
Test Status Codes
| 'T? | Information |
| O | Not applicable for error code |
| A | Adapter initialization error) |
| B | Adapter reset |
| C | Adapter register test |
| D | Adapter buffer test phase 1 (on cached adapters) |
| E | Adapter buffer test phase 2 (on cached adapters) |
| F | Adapter buffer test phase 3 (on cached adapters) |
| G | Adapter buffer test phase 4 (on cached adapters) |
| H | Adapter (buffer enable, buffer size, retry, enable) |
| I | Device assignment sequence |
| J | Device not ready (initial unit attention clearing) |
| K | Device reset |
| L | Device starting phase |
| M | Device in process of starting |
| N | Device block size determination |
| O | Device self-test |
| P | Devicesingle block read (LBA) |
| Q | Device double block read (LBA) |
| S | Error occurred after device testing completed |
Document Location
Worldwide
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Document Information
Modified date:
23 January 2019
UID
ibm1DDSE-3QRMPV