 |
HP OpenVMS System Analysis Tools Manual
CLUE PROCESS
Displays process-related information from the current process context.
Format
CLUE PROCESS [/qualifier[,...]]
Parameters
None.
Qualifiers
/ALL
Ignored except when specified with /BUFFER. Displays the buffer objects
for all processes (that is, all existing buffer objects).
/BUFFER
Displays the buffer objects for the current process or for all
processes if /ALL is specified.
/LAYOUT
Displays the process P1 virtual address space layout.
/LOGICAL
Displays the process logical names and equivalence names, if they can
be accessed.
/RECALL
Displays the DCL recall buffer, if it can be accessed.
Description
The CLUE PROCESS command displays process-related information from the
current process context. Much of this information is in pageable
address space and thus may not be present in a dump file.
Examples
| #1 |
SDA> CLUE PROCESS/LOGICAL
Process Logical Names:
----------------------
"SYS$OUTPUT" = "_CLAWS$LTA5004:"
"SYS$OUTPUT" = "_CLAWS$LTA5004:"
"SYS$DISK" = "WORK1:"
"BACKUP_FILE" = "_$65$DUA6"
"SYS$PUTMSG" = "...À...À.."
"SYS$COMMAND" = "_CLAWS$LTA5004:"
"TAPE_LOGICAL_NAME" = "_$1$MUA3:"
"TT" = "LTA5004:"
"SYS$INPUT" = "_$65$DUA6:"
"SYS$INPUT" = "_CLAWS$LTA5004:"
"SYS$ERROR" = "21C00303.LOG"
"SYS$ERROR" = "_CLAWS$LTA5004:"
"ERROR_FILE" = "_$65$DUA6"
|
The CLUE PROCESS/LOGICAL command displays logical names for each
running process.
| #2 |
SDA> CLUE PROCESS/RECALL
Process DCL Recall Buffer:
--------------------------
Index Command
1 ana/sys
2 @login
3 mc sysman io auto /log
4 show device d
5 sea <.x>*.lis clue$
6 tpu <.x>*0914.lis
7 sh log *hsj*
8 xd <.x>.lis
9 mc ess$ladcp show serv
10 tpu clue_cmd.cld
11 ana/sys
|
The CLUE PROCESS/RECALL command displays a listing of the DCL commands
that have been executed most recently.
CLUE REGISTER
Displays the active register set for the crash CPU. The CLUE REGISTER
command is valid only when analyzing crash dumps.
Format
CLUE REGISTER [/CPU [cpu-id|ALL]
|/PROCESS
[/ADDRESS=n|INDEX=n
|/IDENTIFICATION=n|process-name|ALL]]
Parameters
ALL
When used with /CPU, it requests information about all CPUs in the
system. When used with /PROCESS, it requests information about all
processes that exist in the system.
cpu-id
When used with /CPU, it gives the number of the CPU for which
information is to be displayed. Use of the cpu-id
parameter causes the CLUE REGISTER command to perform an implicit SET
CPU command, making the indicated CPU the current CPU for subsequent
SDA commands.
process-name
When used with /PROCESS, it gives the name of the process for which
information is to be displayed. Use of the
process-name parameter, the /ADDRESS qualifier, the
/INDEX qualifier, or the /IDENTIFICATION qualifier causes the CLUE
REGISTER command to perform an implicit SET PROCESS command, making the
indicated process the current process for subsequent SDA commands. You
can determine the names of the processes in the system by issuing a
SHOW SUMMARY command.
The process-name can contain up to 15 letters and
numerals, including the underscore (_) and dollar sign ($). If it
contains any other characters, you must enclose the
process-name in quotation marks (" ").
Qualifiers
/ADDRESS=n
Specifies the PCB address of the desired process when used with CLUE
REGISTER/PROCESS.
/CPU [cpu-id|ALL]
Indicates that the registers for a CPU are required. Specify the CPU by
its number or use ALL to indicate all CPUs.
/IDENTIFICATION=n
Specifies the identification of the desired process when used with CLUE
REGISTER/PROCESS.
/INDEX=n
Specifies the index of the desired process when used with CLUE
REGISTER/PROCESS.
/PROCESS [process-name|ALL]
Indicates that the registers for a process are required. The process
should be specified with either one of the qualifiers /ADDRESS,
/IDENTIFICATION, or /INDEX, or by its name, or by using ALL to indicate
all processes.
Description
The CLUE REGISTER command displays the active register set of the crash
CPU. It also identifies any known data structures, symbolizes any
system virtual addresses, interprets the processor status (PS), and
attempts to interpret R0 as a condition code.
If neither /CPU nor /PROCESS is specified, the parameter
(cpu-id or process-name) is ignored and the registers
for the SDA current process are displayed.
Example
|
SDA> CLUE REGISTER
Current Registers: Process index: 0042 Process name: BATCH_3 PCB: 817660C0 (CPU 1)
------------------------------------------------------------------------------------------
R0 = 00000000.00000000
R1 = FFFFFFFF.814A2C80 MP_CPU (CPU Id 1)
R2 = 00000000.00000000
R3 = 00000000.23D6BBEE
R4 = 00000000.00000064
R5 = FFFFFFFF.831F8000 PHD
R6 = 00000000.12F75475
R7 = 00000000.010C7A70
R8 = 00000000.00000001
R9 = 00000000.00000000
R10 = 00000000.00000000
R11 = FFFFFFFF.814A2C80 MP_CPU (CPU Id 1)
R12 = FFFFFFFF.810AA5E0 SYSTEM_SYNCHRONIZATION+293E0
R13 = FFFFFFFF.810AC408 SMP$TIMEOUT
R14 = FFFFFFFF.810AED00 SMP$GL_SCHED
R15 = 00000000.7FFA1DD8
R16 = 00000000.0000078C
R17 = 00000000.00000000
R18 = FFFFFFFF.810356C0 SYS$CPU_ROUTINES_2208+1D6C0
R19 = FFFFFFFF.81006000 EXE$GR_SYSTEM_DATA_CELLS
R20 = FFFFFFFF.80120F00 SCH$QEND_C+00080
R21 = 00000000.00000000
R22 = FFFFFFFF.00000000
R23 = 00000000.00000000
R24 = 00000000.00000000
AI = FFFFFFFF.81006000 EXE$GR_SYSTEM_DATA_CELLS
RA = 00000000.00000000
PV = 00000000.00000000
R28 = FFFFFFFF.810194A0 EXE$GL_TIME_CONTROL
FP = 00000000.7FFA1F90
PC = FFFFFFFF.800863A8 SMP$TIMEOUT_C+00068
PS = 18000000.00000804 Kernel Mode, IPL 8, Interrupt
|
CLUE SCSI
Displays information related to SCSI and Fibre Channel.
Format
CLUE SCSI {/CONNECTION=n
|/PORT=n|/REQUEST=n|/SUMMARY}
Qualifiers
/CONNECTION=scdt-address
Displays information about SCSI connections and decodes the SCSI
connection descriptor data structure identified by the SCDT address.
/PORT=spdt-address
Displays all or a specific port descriptor identified by its SPDT
address.
/REQUEST=scdrp-address
Displays information about SCSI requests and decodes the SCSI class
driver request packet identified by the SCDRP address.
/SUMMARY
Displays a summary of all SCSI and FC ports and devices and their type
and revisions.
Description
The CLUE SCSI command displays information about SCSI and Fibre Channel.
Examples
| #1 |
SDA> CLUE SCSI/SUMMARY
SCSI Summary Configuration:
---------------------------
SPDT Port STDT SCSI-Id SCDT SCSI-Lun Device UCB Type Rev
-------------- -------------- -------------- -------- -------- ------ ---
854EB840 PKB0
8549B000 PKA0
8549D880 0
8549DA80 0 DKA0 854C2B00 36.4G HPC5
85250040 FGB0
8549CC80 1
8549D500 0 GGA41 8569EDC0 MSA100
85537A40 2 DGA10 85537C00 MSA100 4.48
85538F00 3 DGA20 855390C0 MSA100 4.48
8553A040 4 DGA30 8553A200 MSA100 4.48
8553B340 6 DGA31 8553B500 MSA100 4.48
8553C480 7 DGA21 8553C640 MSA100 4.48
8553D140 11 DGA50 8553D300 MSA100 4.48
8553DE00 12 DGA51 8553DFC0 MSA100 4.48
8553EF40 21 DGA40 8553F100 MSA100 4.48
851BED80 FGA0
851BBE00 1
851BFA80 0 GGA40 8569E780 MSA100
851C2040 7 DGA21 851A9740 MSA100 4.48
85512840 2 DGA10 85512CC0 MSA100 4.48
85513380 3 DGA20 85513540 MSA100 4.48
85513D80 4 DGA30 85529EC0 MSA100 4.48
8552CA40 6 DGA31 8552CC00 MSA100 4.48
8552F640 11 DGA50 8552F800 MSA100 4.48
85532240 12 DGA51 85532400 MSA100 4.48
85534E40 21 DGA40 85535000 MSA100 4.48
|
This example shows a full summary report, which includes all SCSI and
FC ports and devices and their type and revisions.
| #2 |
SDA> CLUE SCSI/PORT=851BED80
SCSI Port Descriptor (SPDT):
----------------------------
FGA0: Driver SYS$PGQDRIVER
SPDT Address 851BED80 Port Type QLogic ISP23xx FibreChannel
ADP Address 85189E00 Adapter PCI
UCB Address 8519B4C0 Device 00000000.00000000 ()
Busarray Address 8518A180 Port Host SCSI Id 0
Port Flags mapping_reg,dir_dma,luns,cmdq,port_autosense,smart_port
Port Device Status online
Port Dev Status at DIPL stdt_scdt
Target inited Bus Resets 0 Number of Events 0
Retry Attempts 0 Curr I/Os on all Ports 0
Stray Interrupts 0 Curr I/Os on all Devices 0
Unexpected Interrupts 0 Total Outstanding I/Os 0
Reselections 0
CRAB Address 8515DD00 Port Wait Queue empty
Port CRAM Address 00000000 Nonpg Pool FKB Que empty
Port IDB Address 85151340 Bus Reset Waiters empty
|
This example shows a report for the PORT with SPDT address 851BED80.
| #3 |
SDA> CLUE SCSI/CONNECTION=85512840
SCSI Connection Descriptor (SCDT):
----------------------------------
SCDT Connection Descriptor 85512840 Device DGA10
STDT Target Descriptor 851BBE00 Type MSA1000 VOLUME
SPDT Port Descriptor 851BED80 Revision 4.48
Port UCB Address 8519B4C0 Target SCSI Id 1
Device UCB Address 85512CC0 Device SCSI Lun 512
Connection State open
Capability Mask scsi_2,cmdq
Connection Flags ena_discon
Queue Flags -
DIPL Queue Flags -
Total Outstanding I/Os 0 Number of Commands sent 0
Outstanding Port I/Os 0 Number of Messages sent 0
Outstanding Device I/Os 0 Number of Bytes sent 0
Arbitration Failures 0 Parity Errors 0
Selection Failures 0 Missing Phase Errors 0
Count of Controller Errors 0 Bad Phase Errors 0
Count of Bus Errors 0 Count of Retries 0
|
This report includes information about SCSI connections and decodes the
SCSI connection descriptor data structure identified by the SCDT
address 85512840.
CLUE SG
Displays the scatter-gather map.
Format
CLUE SG [/CRAB=address]
Parameters
None.
Qualifier
/CRAB=address
Displays the ringbuffer for the specified Counted Resource Allocation
Block (CRAB). The default action is to display the ringbuffer for all
CRABs.
Description
CLUE SG decodes and displays the scatter/gather ringbuffer entries.
Examples
In this example, the scatter-gather ring buffer for the CRAB at address
81224740 is displayed.
In this example, the scatter-gather ring buffer for the CRAB address
8120D600 is displayed.
CLUE STACK
On Alpha, CLUE STACK identifies and displays the current stack. On
Integrity servers, CLUE STACK only identifies the current stack without
displaying it. Use the SDA command SHOW STACK on both Alpha and
Integrity servers to display and decode the whole stack for the more
common bugcheck types.
Format
CLUE STACK
Parameters
None.
Qualifiers
None.
Description
The CLUE STACK command identifies and displays the current stack
together with the upper and lower stack limits. In case of a
FATALEXCPT, INVEXCEPTN, SSRVEXCEPT, UNXSIGNAL, or PGFIPLHI bugcheck,
CLUE STACK tries to decode the whole stack.
Example
|
SDA> CLUE STACK
Stack Decoder:
--------------
Normal Process Kernel Stack:
Stack Pointer 00000000.7FFA1C98
Stack Limits (low) 00000000.7FFA0000
(high) 00000000.7FFA2000
SSRVEXCEPT Stack:
-----------------
Stack Pointer SP => 00000000.7FFA1C98
Information saved by Bugcheck:
a(Signal Array) 00000000.7FFA1C98 00000000.00000000
EXE$EXCPTN[E] Temporary Storage:
EXE$EXCPTN[E] Stack Frame:
PV 00000000.7FFA1CA0 FFFFFFFF.829CF010 EXE$EXCPTN
Entry Point FFFFFFFF.82A21000 EXE$EXCPTN_C
return PC 00000000.7FFA1CA8 FFFFFFFF.82A2059C SYS$CALL_HANDL_C+0002C
saved R2 00000000.7FFA1CB0 00000000.00000000
saved FP 00000000.7FFA1CB8 00000000.7FFA1CD0
SYS$CALL_HANDL Temporary Storage:
00000000.7FFA1CC0 FFFFFFFF.829CEDA8 SYS$CALL_HANDL
00000000.7FFA1CC8 00000000.00000000
SYS$CALL_HANDL Stack Frame:
PV 00000000.7FFA1CD0 FFFFFFFF.829CEDA8 SYS$CALL_HANDL
Entry Point FFFFFFFF.82A20570 SYS$CALL_HANDL_C
00000000.7FFA1CD8 00000000.00000000
return PC 00000000.7FFA1CE0 FFFFFFFF.82A1E930 CHF_REI+000DC
saved FP 00000000.7FFA1CE8 00000000.7FFA1F40
Fixed Exception Context Area:
Linkage Pointer 00000000.7FFA1CF0 FFFFFFFF.80C63780 EXCEPTION_MON_NPRW+06D80
a(Signal Array) 00000000.7FFA1CF8 00000000.7FFA1EB8
a(Mechanism Array) 00000000.7FFA1D00 00000000.7FFA1D40
a(Exception Frame) 00000000.7FFA1D08 00000000.7FFA1F00
Exception FP 00000000.7FFA1D10 00000000.7FFA1F40
Unwind SP 00000000.7FFA1D18 00000000.00000000
Reinvokable FP 00000000.7FFA1D20 00000000.00000000
Unwind Target 00000000.7FFA1D28 00000000.00020000 SYS$K_VERSION_04
#Sig Args/Byte Cnt 00000000.7FFA1D30 00000005.00000250 BUG$_NETRCVPKT
a(Msg)/Final Status 00000000.7FFA1D38 829CE050.000008F8 BUG$_SEQ_NUM_OVF
Mechanism Array:
Flags/Arguments 00000000.7FFA1D40 00000000.0000002C
a(Establisher FP) 00000000.7FFA1D48 00000000.7AFFBAD0
reserved/Depth 00000000.7FFA1D50 FFFFFFFF.FFFFFFFD
a(Handler Data) 00000000.7FFA1D58 00000000.00000000
a(Exception Frame) 00000000.7FFA1D60 00000000.7FFA1F00
a(Signal Array) 00000000.7FFA1D68 00000000.7FFA1EB8
saved R0 00000000.7FFA1D70 00000000.00020000 SYS$K_VERSION_04
saved R1 00000000.7FFA1D78 00000000.00000000
saved R16 00000000.7FFA1D80 00000000.00020004 UCB$M_NI_PRM_MLT+00004
saved R17 00000000.7FFA1D88 00000000.00010050 SYS$K_VERSION_16+00010
saved R18 00000000.7FFA1D90 FFFFFFFF.FFFFFFFF
saved R19 00000000.7FFA1D98 00000000.00000000
saved R20 00000000.7FFA1DA0 00000000.7FFA1F50
saved R21 00000000.7FFA1DA8 00000000.00000000
saved R22 00000000.7FFA1DB0 00000000.00010050 SYS$K_VERSION_16+00010
saved R23 00000000.7FFA1DB8 00000000.00000000
saved R24 00000000.7FFA1DC0 00000000.00010051 SYS$K_VERSION_16+00011
saved R25 00000000.7FFA1DC8 00000000.00000000
saved R26 00000000.7FFA1DD0 FFFFFFFF.8010ACA4 AMAC$EMUL_CALL_NATIVE_C+000A4
saved R27 00000000.7FFA1DD8 00000000.00010050 SYS$K_VERSION_16+00010
saved R28 00000000.7FFA1DE0 00000000.00000000
FP Regs not valid [...............]
a(Signal64 Array) 00000000.7FFA1EA0 00000000.7FFA1ED0
SP Align = 10(hex) [...............]
Signal Array:
Arguments 00000000.7FFA1EB8 00000005
Condition 00000000.7FFA1EBC 0000000C
Argument #2 00000000.7FFA1EC0 00010000 LDRIMG$M_NPAGED_LOAD
Argument #3 00000000.7FFA1EC4 00000000
Argument #4 00000000.7FFA1EC8 00030078 SYS$K_VERSION_01+00078
Argument #5 00000000.7FFA1ECC 00000003
64-bit Signal Array:
Arguments 00000000.7FFA1ED0 00002604.00000005
Condition 00000000.7FFA1ED8 00000000.0000000C
Argument #2 00000000.7FFA1EE0 00000000.00010000 LDRIMG$M_NPAGED_LOAD
Argument #3 00000000.7FFA1EE8 00000000.00000000
Argument #4 00000000.7FFA1EF0 00000000.00030078 SYS$K_VERSION_01+00078
Argument #5 00000000.7FFA1EF8 00000000.00000003
Interrupt/Exception Frame:
saved R2 00000000.7FFA1F00 00000000.00000003
saved R3 00000000.7FFA1F08 FFFFFFFF.80C63460 EXCEPTION_MON_NPRW+06A60
saved R4 00000000.7FFA1F10 FFFFFFFF.80D12740 PCB
saved R5 00000000.7FFA1F18 00000000.000000C8
saved R6 00000000.7FFA1F20 00000000.00030038 SYS$K_VERSION_01+00038
saved R7 00000000.7FFA1F28 00000000.7FFA1FC0
saved PC 00000000.7FFA1F30 00000000.00030078 SYS$K_VERSION_01+00078
saved PS 00000000.7FFA1F38 00000000.00000003 IPL INT CURR PREV
SP Align = 00(hex) [...............] 00 0 Kern User
Stack Frame:
PV 00000000.7FFA1F40 00000000.00010050 SYS$K_VERSION_16+00010
Entry Point 00000000.00030060 SYS$K_VERSION_01+00060
00000000.7FFA1F48 00000000.00010000 LDRIMG$M_NPAGED_LOAD
return PC 00000000.7FFA1F50 FFFFFFFF.8010ACA4 AMAC$EMUL_CALL_NATIVE_C+000A4
saved FP 00000000.7FFA1F58 00000000.7FFA1F70
Stack (not decoded):
00000000.7FFA1F60 00000000.00000001
00000000.7FFA1F68 FFFFFFFF.800EE81C RM_STD$DIRCACHE_BLKAST_C+005AC
Stack Frame:
PV 00000000.7FFA1F70 FFFFFFFF.80C6EBA0 EXE$CMKRNL
Entry Point FFFFFFFF.800EE6C0 EXE$CMKRNL_C
00000000.7FFA1F78 00000000.829CEDE8 EXE$SIGTORET
00000000.7FFA1F80 00010050.00000002
00000000.7FFA1F88 00000000.00020000 SYS$K_VERSION_04
00000000.7FFA1F90 00000000.00030000 SYS$K_VERSION_01
return PC 00000000.7FFA1F98 FFFFFFFF.800A4D64 __RELEASE_LDBL_EXEC_SERVICE+00284
saved R2 00000000.7FFA1FA0 00000000.00000003
saved R4 00000000.7FFA1FA8 FFFFFFFF.80D12740 PCB
saved R13 00000000.7FFA1FB0 00000000.00010000 LDRIMG$M_NPAGED_LOAD
saved FP 00000000.7FFA1FB8 00000000.7AFFBAD0
Interrupt/Exception Frame:
saved R2 00000000.7FFA1FC0 00000000.7FFCF880 MMG$IMGHDRBUF+00080
saved R3 00000000.7FFA1FC8 00000000.7B0E9851
saved R4 00000000.7FFA1FD0 00000000.7FFCF818 MMG$IMGHDRBUF+00018
saved R5 00000000.7FFA1FD8 00000000.7FFCF938 MMG$IMGHDRBUF+00138
saved R6 00000000.7FFA1FE0 00000000.7FFAC9F0
saved R7 00000000.7FFA1FE8 00000000.7FFAC9F0
saved PC 00000000.7FFA1FF0 FFFFFFFF.80000140 SYS$CLREF_C
saved PS 00000000.7FFA1FF8 00000000.0000001B IPL INT CURR PREV
SP Align = 00(hex) [...............] 00 0 User User
|
CLUE STACK identifies and displays the current stack and its upper and
lower limit. It then decodes the current stack if it is one of the more
common bugcheck types. In this case, CLUE STACK tries to decode the
entire INVEXCEPTN stack.
CLUE SYSTEM
Displays the contents of the shared logical name tables in the system.
Format
CLUE SYSTEM /LOGICAL
Parameters
None.
Qualifier
/LOGICAL
Displays all the shared logical names.
Description
The CLUE SYSTEM/LOGICAL command displays the contents of the shared
logical name tables in the system.
Example
|
SDA> CLUE SYSTEM/LOGICAL
Shareable Logical Names:
------------------------
"XMICONBMSEARCHPATH" = "CDE$HOME_DEFAULTS:[ICONS]%B%M.BM"
"MTHRTL_TV" = "MTHRTL_D53_TV"
"SMGSHR_TV" = "SMGSHR"
"DECW$DEFAULT_KEYBOARD_MAP" = "NORTH_AMERICAN_LK401AA"
"CONVSHR_TV" = "CONVSHR"
"XDPS$INCLUDE" = "SYS$SYSROOT:[XDPS$INCLUDE]"
"DECW$SYSTEM_DEFAULTS" = "SYS$SYSROOT:[DECW$DEFAULTS.USER]"
"SYS$PS_FONT_METRICS" = "SYS$SYSROOT:[SYSFONT.PS_FONT_METRICS.USER]"
"SYS$TIMEZONE_NAME" = "???"
"STARTUP$STARTUP_VMS" = "SYS$STARTUP:VMS$VMS.DAT"
"PASMSG" = "PAS$MSG"
"UCX$HOST" = "SYS$COMMON:[SYSEXE]UCX$HOST.DAT;1"
"SYS$SYLOGIN" = "SYS$MANAGER:SYLOGIN"
"DNS$SYSTEM" = "DNS$SYSTEM_TABLE"
"IPC$ACP_ERRMBX" = "d.Ú."
"CDE$DETACHED_LOGICALS" = "DECW$DISPLAY,LANG"
"DECW$SERVER_SCREENS" = "GXA0"
"DNS$_COTOAD_MBX" = "ä<â."
"DNS$LOGICAL" = "DNS$SYSTEM"
"OSIT$MAILBOX" = "äAë."
"XNL$SHR_TV" = "XNL$SHR_TV_SUPPORT.EXE"
"MOM$SYSTEM" = "SYS$SYSROOT:[MOM$SYSTEM]"
"MOP$LOAD" = "SYS$SYSROOT:<MOM$SYSTEM>"
.
.
.
|
CLUE VCC
Displays virtual I/O cache-related information.
Note
If extended file cache (XFC) is enabled, the CLUE VCC command is
disabled.
|
Format
CLUE VCC [/qualifier[,...]]
Parameters
None.
Qualifiers
/CACHE
Decodes and displays the cache lines that are used to correlate the
file virtual block numbers (VBNs) with the memory used for caching.
Note that the cache itself is not dumped in a selective dump. Use of
this qualifier with a selective dump produces the following message:
%CLUE-I-VCCNOCAC, Cache space not dumped because DUMPSTYLE is selective
|
/LIMBO
Walks through the limbo queue (LRU order) and displays information for
the cached file header control blocks (FCBs).
/STATISTIC
Displays statistical and performance information related to the virtual
I/O cache.
/VOLUME
Decodes and displays the cache volume control blocks (CVCB).
Examples
| #1 |
SDA> CLUE VCC/STATISTIC
Virtual I/O Cache Statistics:
-----------------------------
Cache State pak,on,img,data,enabled
Cache Flags on,protocol_only
Cache Data Area 80855200
Total Size (pages) 400 Total Size (MBytes) 3.1 MB
Free Size (pages) 0 Free Size (MBytes) 0.0 MB
Read I/O Count 34243 Read I/O Bypassing Cache 3149
Read Hit Count 15910 Read Hit Rate 46.4%
Write I/O Count 4040 Write I/O Bypassing Cache 856
IOpost PID Action Rtns 40829 IOpost Physical I/O Count 28
IOpost Virtual I/O Count 0 IOpost Logical I/O Count 7
Read I/O past File HWM 124 Cache Id Mismatches 44
Count of Cache Block Hits 170 Files Retained 100
Cache Line LRU 82B11220 82B11620 Oldest Cache Line Time 00001B6E
Limbo LRU Queue 80A97E3C 80A98B3C Oldest Limbo Queue Time 00001B6F
Cache VCB Queue 8094DE80 809AA000 System Uptime (seconds) 00001BB0
|
| #2 |
SDA> CLUE VCC/VOLUME
Virtual I/O Cache - Cache VCB Queue:
------------------------------------
CacheVCB RealVCB LockID IRP Queue CID LKSB Ocnt State
-------- -------- -------- ----------------- ---- ---- ---- ---------------
8094DE80 80A7E440 020007B2 8094DEBC 8094DEBC 0000 0001 0002 on
809F3FC0 809F97C0 0100022D 809F3FFC 809F3FFC 0000 0001 0002 on
809D0240 809F7A40 01000227 809D027C 809D027C 0000 0001 0002 on
80978B80 809F6C00 01000221 80978BBC 80978BBC 0000 0001 0002 on
809AA000 809A9780 01000005 809AA83C 809AA03C 0007 0001 0002 on
|
| #3 |
SDA> CLUE VCC/LIMBO
Virtual I/O Cache - Limbo Queue:
--------------------------------
CFCB CVCB FCB CFCB IOerrors FID (hex)
-------- -------- -------- -Status- -------- --------------
80A97DC0 809AA000 80A45100 00000200 00000000 (076B,0001,00)
80A4E440 809AA000 809CD040 00000200 00000000 (0767,0001,00)
80A63640 809AA000 809FAE80 00000200 00000000 (0138,0001,00)
80AA2540 80978B80 80A48140 00000200 00000000 (0AA5,0014,00)
80A45600 809AA000 80A3AC00 00000200 00000000 (0C50,0001,00)
80A085C0 809AA000 809FA140 00000200 00000000 (0C51,0001,00)
80A69800 809AA000 809FBA00 00000200 00000000 (0C52,0001,00)
80951000 809AA000 80A3F140 00000200 00000000 (0C53,0001,00)
80A3E580 809AA000 80A11A40 00000200 00000000 (0C54,0001,00)
80A67F80 809AA000 80978F00 00000200 00000000 (0C55,0001,00)
809D30C0 809AA000 809F4CC0 00000200 00000000 (0C56,0001,00)
809D4B80 809AA000 8093E540 00000200 00000000 (0C57,0001,00)
[......]
80A81600 809AA000 8094B2C0 00000200 00000000 (0C5D,0001,00)
80AA3FC0 809AA000 80A2DEC0 00000200 00000000 (07EA,000A,00)
80A98AC0 809AA000 8093C640 00000200 00000000 (0C63,0001,00)
|
| #4 |
SDA> CLUE VCC/CACHE
Virtual I/O Cache - Cache Lines:
--------------------------------
CL VA CVCB CFCB FCB CFCB IOerrors FID (hex)
-------- -------- -------- -------- -------- -Status- -------- ------------
82B11200 82880000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B15740 82AAA000 809AA000 80A07A00 80A24240 00000000 00000000 (0765,0001,00)
82B14EC0 82A66000 809AA000 80A45600 80A3AC00 00000200 00000000 (0C50,0001,00)
82B12640 82922000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B123C0 8290E000 809AA000 80A45600 80A3AC00 00000200 00000000 (0C50,0001,00)
82B13380 8298C000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B15A40 82AC2000 809AA000 80A45600 80A3AC00 00000200 00000000 (0C50,0001,00)
82B15F40 82AEA000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B12AC0 82946000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B12900 82938000 809D0240 809D7000 80A01100 00000200 00000000 (006E,0003,00)
82B10280 82804000 809AA000 80A45600 80A3AC00 00000200 00000000 (0C50,0001,00)
82B122C0 82906000 809AA000 80A1AC00 80A48000 00000000 00000000 (0164,0001,00)
82B14700 82A28000 809AA000 809FFEC0 809F8DC0 00000004 00000000 (07B8,0001,00)
82B11400 82890000 809AA000 80A113C0 80A11840 00000000 00000000 (00AF,0001,00)
[......]
82B11380 8288C000 809AA000 809DA0C0 809C99C0 00002000 00000000 (00AB,0001,00)
82B130C0 82976000 809AA000 809DA0C0 809C99C0 00002000 00000000 (00AB,0001,00)
82B11600 828A0000 809AA000 809DA0C0 809C99C0 00002000 00000000 (00AB,0001,00)
|
CLUE XQP
Displays XQP-related information.
Format
CLUE XQP [/qualifier[,...]]
Parameters
None.
Qualifiers
/ACTIVE
Displays all active XQP processes. (See also /FULL.)
/AQB
Displays any current I/O request packets (IRPs) waiting at the
interlocked queue.
/BFRD=index
Displays the buffer descriptor (BFRD) referenced by the index
specified. The index is identical to the hash value.
/BFRL=index
Displays the buffer lock block descriptor (BFRL) referenced by the
index specified. The index is identical to the hash value.
/BUFFER=(n,m)
Displays the BFRDs for a given pool. Specify either 0, 1, 2 or 3, or a
combination of these in the parameter list. (See also /FULL.)
/CACHE_HEADER
Displays the block buffer cache header.
/FCB=address
Displays all file header control blocks (FCBs) with a nonzero DIRINDX
for a given volume. If no address is specified, the current volume of
the current process is used. (See also /FULL.)
The address specified can also be either a valid volume control block
(VCB), unit control block (UCB), or window control block (WCB) address.
/FILE=address
Decodes and displays file header (FCB), window (WCB), and cache
information for a given file. The file can be identified by either its
FCB or WCB address.
/FULL
Ignored except when used with certain other qualifiers. When used with
/ACTIVE, CLUE displays additional data on the XQP's caller (for Alpha
only). When used with /BUFFER or /VALIDATE, CLUE displays additional
data on each buffer descriptor. When used with /FCB, CLUE displays all
FCBs, including any that are unused.
/GLOBAL
Displays the global XQP area for a given process.
/LBN_HASH=lbn
Calculates and displays the hash value for a given logical block number
(LBN).
/LIMBO
Searches through the limbo queue and displays FCB information from
available, but unused file headers.
/LOCK=lockbasis
Displays all file system serialization, arbitration, and cache locks
found for the specified lockbasis.
/THREAD=n
Displays the XQP thread area for a given process. The specified thread
number is checked for validity. If no thread number is specified, the
current thread is displayed. If no current thread, but only one single
thread is in use, then that thread is displayed. If more than one
thread exists or an invalid thread number is specified, then a list of
currently used threads is displayed.
/VALIDATE=(n,m)
Performs certain validation checks on the block buffer cache to detect
corruption. Specify 1, 2, 3, 4, or a combination of these in the
parameter list. If an inconsistency is found, a minimal error message
is displayed. (See also /FULL.)
Description
The CLUE XQP command displays XQP information. XQP is part of the I/O
subsystem.
Examples
| #1 |
SDA> CLUE XQP/CACHE_HEADER
Block Buffer Cache Header:
--------------------------
Cache_Header 8437DF90 BFRcnt 000005D2 FreeBFRL 843916A0
Bufbase 8439B400 BFRDbase 8437E080 BFRLbase 8438F7E0
Bufsize 000BA400 LBNhashtbl 84398390 BFRLhashtbl 84399BC8
Realsize 000D78A0 LBNhashcnt 0000060E BFRLhashcnt 0000060E
Pool #0 #1 #2 #3
Pool_LRU 8437E5C0 84385F40 84387E90 8438EEB0
8437F400 84385D60 8438AC80 8438EE20
Pool_WAITQ 8437DFE0 8437DFE8 8437DFF0 8437DFF8
8437DFE0 8437DFE8 8437DFF0 8437DFF8
Waitcnt 00000000 00000000 00000000 00000000
Poolavail 00000094 00000252 00000251 00000094
Poolcnt 00000095 00000254 00000254 00000095
AmbigQFL 00000000 Process_Hits 00000000 Cache_Serial 00000000
AmbigQBL 00000000 Valid_Hits 00000000 Cache_Stalls 00000000
Disk_Reads 00000000 Invalid_Hits 00000000 Buffer_Stalls 00000000
Disk_Writes 00000000 Misses 00000000
|
The SDA command CLUE XQP/CACHE_HEADER displays the block buffer cache
header.
| #2 |
SDA> CLUE XQP/VALIDATE=(1,4)
Searching BFRD Array for possible Corruption...
Searching Lock Basis Hashtable for possible Corruption...
|
In this example, executing the CLUE XQP/VALIDATE=(1,4) command
indicated that no corruption was detected in either the BFRD Array or
the Lock Basis Hashtable.
|
