Dear all
In the process of trying to read tarred files from our tape drive (tar tvf
/dev/nrmt0h or tar xvf) I discovered some problems with the tape drive.
First, when doing these or other mt commands to this drive, I hear a harsh
buzzing noise right after it rewinds or goes forward a bit.  
In looking the info with 'mt status', I see that the computer thinks that
the tape drive is on scsi 4 ( where the cdrom is - the tape drive is on
scsi 5):
slave_num               4
dev_name                tz
unit_num                4
Then, in looking at the error log, I find that there are lots of 
SCSI/CAM errors.  So, I looked in the archive and found many questions,
but few helpful summaries.  The majority of summaries look like hardware
problems.
I hope that this is not the case.  In fact, I suspect it is a software
problem with either our DU4.0b (alpha255/300) or with the patch we
installed recently (patch kit-0004).  So, included below is the error log.
If someone can direct me to the appropriate patch (there seems to be so
many problems with 4.0b on the alpha255/300) or let me know if it is a
hardware problem, I'd appreciate it.
Tape drive info:
tz5 at scsi0 target 5 lun 0 (LID=4) 
   _(SEAGATE DAT    02779-XXX 6100)
uerf -R -o full
********************************* ENTRY     1.
*********************************
----- EVENT INFORMATION -----
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  199.     CAM SCSI 
SEQUENCE NUMBER                  5.
OPERATING SYSTEM                        DEC OSF/1 
OCCURRED/LOGGED ON                      Sun Jul  6 18:01:09 1997
OCCURRED ON SYSTEM                      metapl 
SYSTEM ID                 x0006000D     CPU TYPE:  DEC 7000 
SYSTYPE                   x00000000
----- UNIT INFORMATION -----
CLASS                         x0001     TAPE 
SUBSYSTEM                     x0000     DISK 
BUS #                         x0000
                              x0028     LUN x0
                                        TARGET x5
----- CAM STRING -----
ROUTINE NAME                            ctape_move_tape 
----- CAM STRING -----
ERROR TYPE                              Hard Error Detected 
----- CAM STRING -----
DEVICE NAME                             SEAGATE DAT    02779-XXX.DAT
027 
----- CAM STRING -----
                                        Active CCB at time of error 
----- CAM STRING -----
                                        CCB request completed with an
error 
ERROR - os_std, os_type = 11, std_type = 10
----- ENT_CCB_SCSIIO -----
*MY ADDR                  x0FF3D580
CCB LENGTH                    x00C0
FUNC CODE            x01
CAM_STATUS                    x00C4     CAM_REQ_CMP_ERR 
                                        SIM QFRZN 
                                        AUTOSNS_VALID 
PATH ID              0.
TARGET ID            5.
TARGET LUN           0.
CAM FLAGS                 x000000C0
                                        CAM_DIR_NONE 
*PDRV_PTR                 x0FF3D228
*NEXT_CCB                 x00000000
*REQ_MAP                  x00000000
VOID (*CAM_CBFCNP)()      x005561C8
*DATA_PTR                 x00000000
DXFER_LEN                 x00000000
*SENSE_PTR                x0FF3D250
SENSE_LEN            x40
CDB_LEN              x06
SGLIST_CNT                    x0000
CAM_SCSI_STATUS               x0002     SCSI_STAT_CHECK_CONDITION 
SENSE_RESID          x2E
RESID                     x00000000
CAM_CDB_IO           x000000000000000000000001
CAM_TIMEOUT               x00000E10
MSGB_LEN                      x0000
VU_FLAGS                      x0000
TAG_ACTION           x00
----- CAM STRING -----
                                        Error, exception, or abnormal 
                                         _condition 
----- CAM STRING -----
                                        NOT READY - Logical unit is NOT
ready 
----- ENT_SENSE_DATA -----
ERROR CODE                    x0070     CODE x70
SEGMENT              x00
SENSE KEY                     x0002     NOT READY 
INFO BYTE 3          x00
INFO BYTE 2          x00
INFO BYTE 1          x00
INFO BYTE 0          x00
ADDITION LEN         x0A
CMD SPECIFIC 3       x00
CMD SPECIFIC 2       x00
CMD SPECIFIC 1       x00
CMD SPECIFIC 0       x00
ASC                  x5A
ASQ                  x01
FRU                  x00
SENSE SPECIFIC       x000000
ADDITIONAL SENSE    
0000:   00000000  00000000  00000000  00000000        *................*
0010:   00000000  00000000  00000000  00000000        *................*
0020:   00000000  00000000  00000000  00000000        *................*
0030:   7E250000  00005E3C  00000000  00000000        *..%~<^..........*
********************************* ENTRY     2.
*********************************
----- EVENT INFORMATION -----
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  199.     CAM SCSI 
SEQUENCE NUMBER                  4.
OPERATING SYSTEM                        DEC OSF/1 
OCCURRED/LOGGED ON                      Sun Jul  6 18:01:09 1997
OCCURRED ON SYSTEM                      metapl 
SYSTEM ID                 x0006000D     CPU TYPE:  DEC 7000 
SYSTYPE                   x00000000
----- UNIT INFORMATION -----
CLASS                         x0001     TAPE 
SUBSYSTEM                     x0000     DISK 
BUS #                         x0000
                              x0028     LUN x0
                                        TARGET x5
----- CAM STRING -----
ROUTINE NAME                            ctape_iodone 
----- CAM STRING -----
ERROR TYPE                              Hard Error Detected 
----- CAM STRING -----
DEVICE NAME                             SEAGATE DAT    02779-XXX.DAT
027 
----- CAM STRING -----
                                        Active CCB at time of error 
----- CAM STRING -----
                                        CCB request completed with an
error 
ERROR - os_std, os_type = 11, std_type = 10
----- ENT_CCB_SCSIIO -----
*MY ADDR                  x01AADE80
CCB LENGTH                    x00C0
FUNC CODE            x01
CAM_STATUS                    x00C4     CAM_REQ_CMP_ERR 
                                        SIM QFRZN 
                                        AUTOSNS_VALID 
PATH ID              0.
TARGET ID            5.
TARGET LUN           0.
CAM FLAGS                 x00000040
                                        CAM_DIR_IN 
*PDRV_PTR                 x01AADB28
*NEXT_CCB                 x00000000
*REQ_MAP                  x0FF0C300
VOID (*CAM_CBFCNP)()      x00556AA0
*DATA_PTR                 x4002C000
DXFER_LEN                 x00008000
*SENSE_PTR                x01AADB50
SENSE_LEN            x40
CDB_LEN              x06
SGLIST_CNT                    x0000
CAM_SCSI_STATUS               x0002     SCSI_STAT_CHECK_CONDITION 
SENSE_RESID          x2E
RESID                     x00008000
CAM_CDB_IO           x000000000000000080000008
CAM_TIMEOUT               x0000012F
MSGB_LEN                      x0000
VU_FLAGS                      x0000
TAG_ACTION           x00
----- CAM STRING -----
                                        Error, exception, or abnormal 
                                         _condition 
----- CAM STRING -----
                                        ABORTED COMMAND - Target aborted 
                                         _command 
----- ENT_SENSE_DATA -----
ERROR CODE                    x0070     CODE x70
SEGMENT              x00
SENSE KEY                     x000B     ABORTED CMD 
INFO BYTE 3          x00
INFO BYTE 2          x00
INFO BYTE 1          x00
INFO BYTE 0          x00
ADDITION LEN         x0A
CMD SPECIFIC 3       x00
CMD SPECIFIC 2       x00
CMD SPECIFIC 1       x00
CMD SPECIFIC 0       x00
ASC                  x5A
ASQ                  x01
FRU                  x00
SENSE SPECIFIC       x000000
ADDITIONAL SENSE    
0000:   00000000  00000000  00000000  00000000        *................*
0010:   00000000  00000000  00000000  00000000        *................*
0020:   00000000  00000000  00000000  00000000        *................*
0030:   7E250000  00005E3C  00000000  00000000        *..%~<^..........*
*************************************************************************
Thanks
Jerry
-------------------------------------------
               Jerry Ponder
    Department of Physics and Astronomy
         Arizona State University
          Tempe, Az, 85287-1504
     Email:  ponder_at_groucho.la.asu.edu
-------------------------------------------
Received on Mon Jul 07 1997 - 04:18:49 NZST