SRDB ID   Synopsis   Date
25438   Disabling erroneous messages created by src/p hardware raid card   1 Feb 2001

Status Issued

Description
An Enterprise 450 contains the src/p hardware raid card. The card
is fully functional and all Logical Storage Units are optimal. 
However, every time the system is rebooted, the messages file 
will log multiple warnings and resets about the card. A sample
is provided below.

Jan 23 08:41:20 e450-hw dptelog: [ID 274699 daemon.notice] The device at 
                        (0,0,2,0) returned a SCSI status: 2 at Tue Jan 
                        23 08:38:58 2001
Jan 23 08:41:20 e450-hw (Error count is equal to the crash drive threshold)
Jan 23 08:41:20 e450-hw 4d 00 4e 00 00 00 00 00 28 00 00 00
Jan 23 08:41:20 e450-hw dptelog: [ID 993447 daemon.notice] The device at 
                        (0,0,2,0) returned request sense at Tue Jan 23 
                        08:38:58 2001.
Jan 23 08:41:20 e450-hw (Key: Non-Recoverable error)
Jan 23 08:41:20 e450-hw 70 00 05 00 00 00 00 18 00 00 00 00 24 00 00 c0 00 02
Jan 23 08:41:20 e450-hw dptelog: [ID 785029 daemon.notice] Bus reset occurred
                        on channel 0 - Command from host requested that the bus
                        to be reset at Tue Jan 23 08:38:58 2001.
Jan 23 08:41:20 e450-hw 70 00 06 00 00 00 00 18 00 00 00 00 29 02 00 00 00 00
                  

SOLUTION SUMMARY:
The warning messages have no impact on the Logical Storage Units or 
access to data. As previously stated, everything is optimal. There are
two repeating sense data strings in the messages file. They are ->

        70 00 05 00 00 00 00 0a 00 00 00 00 24 00 0a cd 00 02
               ^                             ^  ^
               |                             |  |
          Sense Key                         ASC ASCQ

Sense Key 05 = ILLEGAL REQUEST, ASC/ASCQ 24 00 = INVALID FIELD IN CDB.
This occurs anytime a SCSI command is issued that the firmware doesn't use.
In this case, a LOG SENSE command "4d 00 4e 00 00 00 00 00 28 00 00 00" was 
issued . The card's firmware does not support ALL SCSI commands, identified
it as such and continued. The other message ->

        70 00 06 00 00 00 00 0a 00 00 00 00 29 02 02 00 00 00
               ^                             ^  ^
               |                             |  |
          Sense Key                          ASC ASCQ

Sense Key 06 = UNIT ATTENTION, ASC/ASCQ 29 02 = SCSI BUS RESET OCCURRED.
Multiple illegal requests,(the LOG SENSE data) are being sent to the card.
Once again, these are commands are not applicable to the card. Eventually, 
the application stops sending the LOG SENSE, a RESET of the bus is issued,
and the bootup continues. This behavior is normal and may be ignored.


The messages may be turned off. With rev 2.0 of dptmgr, the "display 
threshold" was changed. Instead of reporting status changes only (level 4),
it now reports ALL soft errors (level 1). This results in many typical 
SCSI commands being logged. This may be turned off from the GUI as follows:

  1. /opt/SUNWhwrdg/dptmgr  (start the GUI)
  2. Pick Options -> Event Broadcast Control (spawns a new GUI)
  3. Change the Display Threshold from 1 to 4.
  4. Hit the "OK" button.
  5. Hit "OK" to the final display sending the changes to the Broadcaster.
                  

INTERNAL SUMMARY:

SUBMITTER: Daniel Caporale APPLIES TO: AFO Vertical Team Docs/Storage, Hardware/Disk Storage Subsystem/SCSI Raid Controller/SRC/P ATTACHMENTS:


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