Conference ssag::ask_ssag

6535.0. "MOUNT VERIFICATION AND SELF OK SIGNAL" by MDR01::JAGOMEZ (MCS Madrid) Tue Apr 01 1997 09:00

			

			CROSS POSTED IN HSZ40 AND ASK_SSAG NOTES


                Hi all,
                
                we have a 'Mount verification in progress' problem with 
                several disk on two shared SCSI bus. This message appears 
                randomly in different units and recovers in 1-2 sec. In 
                the errorlog there are 'Self OK is not properly asserted' 
                messages related to each disk which goes to mount 
                verification. But the disks are raids distributed across 
                several shelves, and only one disk goes to mount 
                verification each time. The problem appears in both PKA 
                and PKB buses. This seems to eliminate a single point of 
                failure (shelf, power supply, fan,...) 
                
                Configuration: 2 x 8400 with KZPSA's and HSZ40 (v27z). 
                Two shared SCSI buses (two redundant HSZ's each)
                
                Below there is an errorlog entry (it repeats for DKA1, 
                DKA2, DKB0, DKB1 and DKB2) and the corresponding 
                operator.log message
                
                Any help will be appreciated,
                
                Jose A. Gomez
                

******************************** ENTRY  403 ******************************** 


Logging OS                        1. OpenVMS 
System Architecture               2. Alpha 
OS version                           V6.2-1H3 
Event sequence number          9571. 
Timestamp of occurrence              31-MAR-1997 13:00:12   
Time since reboot                    23 Day(s) 7:57:29 
Host name                            AIPRD1   

System Model                         AlphaServer 8400 Model EV56/440 

Entry type                        1. Device Error 


---- Device Profile ----               
Unit                                 AIPRD1$DKA2 
Product Name                         HSZ40  SCSI to SCSI Ctrl 

-- Driver Supplied Info -              
Device Firmware Revision             V27Z 
VMS SCSI Error Type               5. Extended Sense Data from Device 
SCSI ID                         x00 
SCSI LUN                        x00 
SCSI SUBLUN                     x02 
Port Status               x00000001  NORMAL  -  normal successful completion 
Command Opcode                  x00  Test Unit Ready 
Command Data                           
                                x00 
                                x00 
                                x00 
                                x00 
                                x00 
                                       
SCSI Status                     x02  Check Condition 
Remaining Byte Length            24. 

------- HSZ Data -------               

Error Code                      x70  Current Error 
Segment #                       x00 
Information Byte 3              x00 
            Byte 2              x00 
            Byte 1              x00 
            Byte 0              x00 
Sense Key                       x06  Unit Attention 
Additional Sense Length         x98 
CMD Specific Info Byte 3        x00 
                  Byte 2        x00 
                  Byte 1        x00 
                  Byte 0        x00 

ASC & ASCQ                    xA100  ASC  =   x00A1 
                                     ASCQ =   x0000 
                                     Self OK is not properly asserted. 

FRU Code                        x00 
Sense Key Specific Byte 0       x00  Sense Key Data NOT Valid 
                   Byte 1       x00 
                   Byte 2       x00 

Count of valid bytes:             6. 


          15--<-12  11--<-08  07--<-04  03--<-00   :Byte Order 
 0000:    00000000  00000000  00000000  00000000   *................* 


----- Software Info -----              
UCB$x_ERTCNT                     16. Retries Remaining    
UCB$x_ERTMAX                     16. Retries Allowable    
IRP$Q_IOSB                x0000000000000000 
UCB$x_STS                 x08025910  Online 
                                     Busy 
                                     Software Valid 
                                     Unload At Dismount 
                                     "Mount Verification" In-Progress 
                                     Volume is Valid on the local node 
                                     Unit supports the Extended Function bit 
IRP$L_PID                 x932BDE30  Requestor "PID"    
IRP$x_BOFF                        0. Byte Page Offset    
IRP$x_BCNT                        0. Transfer Size In Byte(s)    
UCB$x_ERRCNT                      2. Errors This Unit    
UCB$L_OPCNT                  398615. QIO's This Unit    
ORB$L_OWNER               x00010004  Owners UIC    
UCB$L_DEVCHAR1            x1C4D4008  Directory Structured 
                                     File Oriented 
                                     Sharable 
                                     Available 
                                     Mounted 
                                     Error Logging 
                                     Capable of Input 
                                     Capable of Output 
                                     Random Access 




operator.log:


%%%%%%%%%%%  OPCOM  31-MAR-1997 13:00:12.54  %%%%%%%%%%%
Device $1$DKA2: (AIPRD1) is offline.
Mount verification is in progress.

%%%%%%%%%%%  OPCOM  31-MAR-1997 13:00:14.58  %%%%%%%%%%%
Mount verification has completed for device $1$DKA2: (AIPRD1)