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Conference ssag::ask_ssag

Title:Ask the Storage Architecture Group
Notice:Check out our web page at http://www-starch.shr.dec.com
Moderator:SSAG::TERZAN
Created:Wed Oct 15 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6756
Total number of notes:25276

6440.0. "Problem with TLZ7L and BA356" by NBOE00::KOETHNER () Mon Mar 03 1997 06:56

Hi Folks,

i have some problems in following configration.

On the customer side i have an CDDI-Server with an HS1CP and 6 BA356 shelves.

The CDDI-Server consists of two alpha 1000a server's.

The first 5 shelves ar fully populate with RZ29-VW connected from port
1 to port 5. On this ports all is working very well.

On the 6'th port he is also using an ba356 shelv with two TLZ7-VA.

Intermittend we receive a lot of problems with the tapes.

The revsion of the tapes are 4BQH

Here are some older errorlog information from the system.

******************************** ENTRY 2769 ******************************** 


Logging OS                        1. OpenVMS 
System Architecture               2. Alpha 
OS version                           V6.2     
Event sequence number         16504. 
Timestamp of occurrence              18-DEC-1996 19:55:24   
Time since reboot                    62 Day(s) 8:02:24 
Host name                            AGNS08   

System Model                         AlphaServer 1000 4/233 

Entry type                      100. Logged Message 


--- Device Profile ----               
Unit                                 HS1CP1$MUA1 
Product Name                         TLZ07 

---- MSCP Logged Msg ----              

Logged Message Type Code          2. Tape Message 


Command Reference number  x00000000 
Unit Number                       1. 
MSCP Sequence number            153. 
Logged Message Format             5. Tape Transfer Error 
MSCP Flags                      x00  No MSCP Flags indicated 

MSCP Unique Controller-ID x0000000961200091 
MSCP Controller Model           107. HSD40 HS Array Controller 
MSCP Controller Class             1. Mass Storage Controller class 
Controller SW version           x27 
Controller HW version           x01 

MSCP Unique Unit-ID       x0000000000000013 
MSCP Unit Model                  35. TLZ07 on MSCP Controller 
MSCP Unit Class                   3. Tape class 
Unit SW version                 x01 
Unit HW version                 x48 

TMSCP Event Code              x000B  Major Event =  Drive Error 
                                     Sub-event =  Unknown 

Multiunit code                x0054 
Error recovery level              1. 
Retry count                       0. 
Gap count                         0. 
Formatter SW version              0. 
Formatter HW version              0. 

------- HSAC Data -------              
Instance Code             x038B450A  The tape device reported standard SCSI 
                                     Sense Data. 
                                          
                                     Component ID =   Device Services. 
                                     Event Number =   x0000008B 
                                     Repair Action =   x00000045 
                                     NR Threshold =   x0000000A 
Template Type                   x61  Tape Transfer Error. 
Power On Time                        105 Day(s) 23:20:03 

Device Locator              x000406  Port    =   6. 
                                     Target  =   4. 
                                     LUN     =   0. 
SCSI Device Type                x01  Sequential Access Device. 
Drive Product Name                   TLZ7      (C)DEC 
Drive Serial Number                           
Command Opcode                  x01  Rewind 
Sense Data Qualifier            x80  Buf Mode =   0, The target shall not 
                                                  report GOOD status on write 
                                                  commands until the data 
                                                  blocks are actually written 
                                                  on the medium. 
                                     UWEUO =   0, not defined 
                                     MSBD =   0, not defined 
                                     FBW =   0, not defined 
                                     DSSD =   1, Sense Data fields were 
                                              supplied by the target device. 
-- Device Sense Data --                

Error Code                      xF0  Current Error 
                                     Information Bytes are Valid 
Segment #                       x00 
Information Byte 3              xDB 
            Byte 2              x01 
            Byte 1              x00 
            Byte 0              x00 
Sense Key                       x04  Hardware Error 
Additional Sense Length         x0A 
CMD Specific Info Byte 3        x00 
                  Byte 2        x00 
                  Byte 1        x00 
                  Byte 0        x00 
ASC & ASCQ                    x4400  ASC  =   x0044 
                                     ASCQ =   x0000 
                                     Internal Target Failure 
FRU Code                        x00 
Sense Key Specific Byte 0       x02  Sense Key Data NOT Valid 
                   Byte 1       x00 
                   Byte 2       x00 


******************************** ENTRY 2770 ******************************** 


Logging OS                        1. OpenVMS 
System Architecture               2. Alpha 
OS version                           V6.2     
Event sequence number         16505. 
Timestamp of occurrence              18-DEC-1996 19:55:25   
Time since reboot                    62 Day(s) 8:02:25 
Host name                            AGNS08   

System Model                         AlphaServer 1000 4/233 

Entry type                      100. Logged Message 


---- Device Profile ----               
Unit                                 HS1CP1$MUA1 
Product Name                         TLZ07 

---- MSCP Logged Msg ----              

Logged Message Type Code          2. Tape Message 


Command Reference number  x00000000 
Unit Number                       1. 
MSCP Sequence number            154. 
Logged Message Format             5. Tape Transfer Error 
MSCP Flags                      x00  No MSCP Flags indicated 

MSCP Unique Controller-ID x0000000961200091 
MSCP Controller Model           107. HSD40 HS Array Controller 
MSCP Controller Class             1. Mass Storage Controller class 
Controller SW version           x27 
Controller HW version           x01 

MSCP Unique Unit-ID       x0000000000000013 
MSCP Unit Model                  35. TLZ07 on MSCP Controller 
MSCP Unit Class                   3. Tape class 
Unit SW version                 x01 
Unit HW version                 x48 

TMSCP Event Code              x000B  Major Event =  Drive Error 
                                     Sub-event =  Unknown 

Multiunit code                x0054 
Error recovery level              1. 
Retry count                       0. 
Gap count                         0. 
Formatter SW version              0. 
Formatter HW version              0. 

------- HSAC Data -------              
Instance Code             x038B450A  The tape device reported standard SCSI 
                                     Sense Data. 
                                          
                                     Component ID =   Device Services. 
                                     Event Number =   x0000008B 
                                     Repair Action =   x00000045 
                                     NR Threshold =   x0000000A 
Template Type                   x61  Tape Transfer Error. 
Power On Time                        105 Day(s) 23:20:03 

Device Locator              x000406  Port    =   6. 
                                     Target  =   4. 
                                     LUN     =   0. 
SCSI Device Type                x01  Sequential Access Device. 
Drive Product Name                   TLZ7      (C)DEC 
Drive Serial Number                           
Command Opcode                  x01  Rewind 
Sense Data Qualifier            x80  Buf Mode =   0, The target shall not 
                                                  report GOOD status on write 
                                                  commands until the data 
                                                  blocks are actually written 
                                                  on the medium. 
                                     UWEUO =   0, not defined 
                                     MSBD =   0, not defined 
                                     FBW =   0, not defined 
                                     DSSD =   1, Sense Data fields were 
                                              supplied by the target device. 
-- Device Sense Data --                

Error Code                      xF0  Current Error 
                                     Information Bytes are Valid 
Segment #                       x00 
Information Byte 3              xDB 
            Byte 2              x01 
            Byte 1              x00 
            Byte 0              x00 
Sense Key                       x04  Hardware Error 
Additional Sense Length         x0A 
CMD Specific Info Byte 3        x00 
                  Byte 2        x00 
                  Byte 1        x00 
                  Byte 0        x00 
ASC & ASCQ                    x4400  ASC  =   x0044 
                                     ASCQ =   x0000 
                                     Internal Target Failure 
FRU Code                        x00 
Sense Key Specific Byte 0       x02  Sense Key Data NOT Valid 
                   Byte 1       x00 
                   Byte 2       x00 


******************************** ENTRY 2792 ******************************** 


Logging OS                        1. OpenVMS 
System Architecture               2. Alpha 
OS version                           V6.2     
Event sequence number         16647. 
Timestamp of occurrence              19-DEC-1996 16:44:00   
Time since reboot                    63 Day(s) 4:50:56 
Host name                            AGNS08   

System Model                         AlphaServer 1000 4/233 

Entry type                      100. Logged Message 


---- Device Profile ----               
Unit                                 HS1CP1$MUA2 
Product Name                         TLZ07 

---- MSCP Logged Msg ----              

Logged Message Type Code          2. Tape Message 


Command Reference number  x00000000 
Unit Number                       2. 
MSCP Sequence number            162. 
Logged Message Format             5. Tape Transfer Error 
MSCP Flags                      x00  No MSCP Flags indicated 

MSCP Unique Controller-ID x0000000961200091 
MSCP Controller Model           107. HSD40 HS Array Controller 
MSCP Controller Class             1. Mass Storage Controller class 
Controller SW version           x27 
Controller HW version           x01 

MSCP Unique Unit-ID       x0000000000000001 
MSCP Unit Model                  35. TLZ07 on MSCP Controller 
MSCP Unit Class                   3. Tape class 
Unit SW version                 x01 
Unit HW version                 x45 

TMSCP Event Code              x014B  Major Event =  Drive Error 
                                     Sub-event =  Controller Detected Protocol 
                                                  Error 

Multiunit code                x0051 
Error recovery level              1. 
Retry count                       0. 
Gap count                         0. 
Formatter SW version              0. 
Formatter HW version              0. 

------- HSAC Data -------              
Instance Code             x03674002  A Drive failed because a Test Unit Ready 
                                     command or a Read Capacity command failed. 
                                          
                                     Component ID =   Device Services. 
                                     Event Number =   x00000067 
                                     Repair Action =   x00000040 
                                     NR Threshold =   x00000002 
Template Type                   x61  Tape Transfer Error. 
Power On Time                        106 Day(s) 20:08:41 

Device Locator              x000106  Port    =   6. 
                                     Target  =   1. 
                                     LUN     =   0. 
SCSI Device Type                x1F  Unrecognized. 
Drive Product Name                   TLZ7      (C)DEC 
Drive Serial Number                           
Command Opcode                  x00  Test Unit Ready 
Sense Data Qualifier            x00  Buf Mode =   0, The target shall not 
                                                  report GOOD status on write 
                                                  commands until the data 
                                                  blocks are actually written 
                                                  on the medium. 
                                     UWEUO =   0, not defined 
                                     MSBD =   0, not defined 
                                     FBW =   0, not defined 
                                     DSSD =   0, Sense Data fields were 
                                              generated by the controller on 
                                              behalf of the target devices 
                                              because the Sense Data could not 
                                              be obtained from that device. 
--- HSAC Sense Data ---                

Error Code                      x70  Current Error 
Segment #                       x00 
Information Byte 3              x00 
            Byte 2              x00 
            Byte 1              x00 
            Byte 0              x00 
Sense Key                       x04  Hardware Error 
Additional Sense Length         x0A 
CMD Specific Info Byte 3        x00 
                  Byte 2        x00 
                  Byte 1        x00 
                  Byte 0        x00 

ASC & ASCQ                    x3F85  ASC  =   x003F 
                                     ASCQ =   x0085 
                                     Test Unit Ready or Read Capacity Command 
                                     failed. 

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


******************************** ENTRY 2793 ******************************** 


Logging OS                        1. OpenVMS 
System Architecture               2. Alpha 
OS version                           V6.2     
Event sequence number         16648. 
Timestamp of occurrence              19-DEC-1996 16:44:02   
Time since reboot                    63 Day(s) 4:50:57 
Host name                            AGNS08   

System Model                         AlphaServer 1000 4/233 

Entry type                      100. Logged Message 


---- Device Profile ----               
Unit                                 HS1CP1$MUA1 
Product Name                         TLZ07 

---- MSCP Logged Msg ----              

Logged Message Type Code          2. Tape Message 


Command Reference number  x00000000 
Unit Number                       1. 
MSCP Sequence number            163. 
Logged Message Format             5. Tape Transfer Error 
MSCP Flags                      x00  No MSCP Flags indicated 

MSCP Unique Controller-ID x0000000961200091 
MSCP Controller Model           107. HSD40 HS Array Controller 
MSCP Controller Class             1. Mass Storage Controller class 
Controller SW version           x27 
Controller HW version           x01 

MSCP Unique Unit-ID       x0000000000000013 
MSCP Unit Model                  35. TLZ07 on MSCP Controller 
MSCP Unit Class                   3. Tape class 
Unit SW version                 x01 
Unit HW version                 x48 

TMSCP Event Code              x014B  Major Event =  Drive Error 
                                     Sub-event =  Controller Detected Protocol 
                                                  Error 

Multiunit code                x0054 
Error recovery level              1. 
Retry count                       0. 
Gap count                         0. 
Formatter SW version              0. 
Formatter HW version              0. 

------- HSAC Data -------              
Instance Code             x03674002  A Drive failed because a Test Unit Ready 
                                     command or a Read Capacity command failed. 
                                          
                                     Component ID =   Device Services. 
                                     Event Number =   x00000067 
                                     Repair Action =   x00000040 
                                     NR Threshold =   x00000002 
Template Type                   x61  Tape Transfer Error. 
Power On Time                        106 Day(s) 20:08:41 

Device Locator              x000406  Port    =   6. 
                                     Target  =   4. 
                                     LUN     =   0. 
SCSI Device Type                x1F  Unrecognized. 
Drive Product Name                   TLZ7      (C)DEC 
Drive Serial Number                           
Command Opcode                  x00  Test Unit Ready 
Sense Data Qualifier            x00  Buf Mode =   0, The target shall not 
                                                  report GOOD status on write 
                                                  commands until the data 
                                                  blocks are actually written 
                                                  on the medium. 
                                     UWEUO =   0, not defined 
                                     MSBD =   0, not defined 
                                     FBW =   0, not defined 
                                     DSSD =   0, Sense Data fields were 
                                              generated by the controller on 
                                              behalf of the target devices 
                                              because the Sense Data could not 
                                              be obtained from that device. 
--- HSAC Sense Data ---                

Error Code                      x70  Current Error 
Segment #                       x00 
Information Byte 3              x00 
            Byte 2              x00 
            Byte 1              x00 
            Byte 0              x00 
Sense Key                       x04  Hardware Error 
Additional Sense Length         x0A 
CMD Specific Info Byte 3        x00 
                  Byte 2        x00 
                  Byte 1        x00 
                  Byte 0        x00 

ASC & ASCQ                    x3F85  ASC  =   x003F 
                                     ASCQ =   x0085 
                                     Test Unit Ready or Read Capacity Command 
                                     failed. 

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


********************************************************************************
**

I received a lot of timeouts with an VMS backup. But the interresting thing ist,
i have only troubel
wiht tape tape who have the follwing ID (6 4 0). The other tape wiht ID (6 6 0)
is always working fine
without any problems. I have changesd two or three times the tape with no
success. The use both tapes. 
He start on different time the backup, so we will not have any timing problems.
The only way to clear the problem is, doing en hard reset on the tape. 

Questions:
1.) Is the configuration supported?

2.) Is ist possible to change an parameter, so that the driver have more time to
wait until the tape 
is ready with his internal verification. (i.e. bad spot on the tape)

3.) Can it be happend, that the backplane of BA356 is defektive?

4.) Should we use an BA350 shelve?

Any help on this will be graetly appreciated.

Regards Detlef
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