OpenVMS VAX System Dump Analyzer Utility Manual

Updated: 11 December 1998

OpenVMS VAX System Dump Analyzer Utility Manual

Contents

Index

SHOW POOL

Displays information about the disposition of paged and nonpaged memory, nonpaged dynamic storage pool, and paged dynamic storage pool.

Format

SHOW POOL [range][/ALL|/FREE|/HEADER|/NONPAGED| /PAGED|/RING_BUFFER|/STATISTICS| /SUMMARY|/TYPE=block-type]

Parameters

range
Range of virtual addresses in pool that SDA is to examine. You can express a range using the following format:

m:n Range of virtual addresses in pool from m to n

m;n Range of virtual addresses in pool starting at m and continuing for n bytes

Qualifiers

/ALL
Displays the entire contents of allocated pool, including the pool lists, nonpaged dynamic storage pool, and paged dynamic storage pool. This is the default behavior of the SHOW POOL command.
/FREE
Displays the entire contents, both allocated and free, of the specified region or regions of pool. You cannot use the /FREE qualifier when you use a range to indicate a region of pool to be displayed.
/HEADER
Displays only the first 16 longwords of each data block found within the specified region or regions of pool.
/NONPAGED
Displays the contents of the nonpaged dynamic storage pool currently in use.
/PAGED
Displays the contents of the paged dynamic storage pool currently in use.
/RING_BUFFER
Displays the contents of the nonpaged pool history ring buffer if pool-checking has been enabled. Entries are displayed in reverse chronological order, that is, the most recent to the least recent. You cannot use this qualifier with any other SHOW POOL qualifier. This qualifier is most useful when analyzing crash dumps; output might not be consistent when used on a running system.
/STATISTICS
Displays usage statistics about each pool list if pool-checking has been enabled. For each list, the following are displayed:

Queue header address
Packet size
Attempts, failures, and deallocations
SDA does not synchronize its access to these last three counters with other CPUs in a symmetric multiprocessing (SMP) system. Therefore, the numbers might not add up to what you would expect in a multiprocessor configuration. However, the statistics do provide a good indicator of overall pool activity.

/SUMMARY
Displays only an allocation summary for each specified region of pool.
/TYPE=block-type
Displays the blocks within the specified region or regions of pool that are of the indicated block-type. If SDA finds no blocks of that type in the pool region, it displays a blank screen, followed by an allocation summary of the region.

Description

The SHOW POOL command displays information about the contents of any specified region of pool in an 8-column format. Following are explanations and examples of the contents of the full display.
Column 1 contains the type of control block that starts at the virtual address in pool indicated in column 2. If SDA cannot interpret the block type, it displays a block type of "UNKNOWN." Column 3 lists the number of bytes (in decimal) of memory allocated to the block. The block size is fixed for SRPs, IRPs, and LRPs, and is variable in the paged and nonpaged pools. For example:
Col. 1 Col. 2 Col. 3 ------ -------- ------ CIMSG 80BADE00 208
The remaining columns contain a dump of the contents of the block, in 4-longword intervals, until the block is complete. Columns 4 through 7 display, from right to left, the contents in hexadecimal; column 8 displays, from left to right, the contents in ASCII. If the ASCII value of a byte is not a printing character, SDA displays a period (.) instead. For example:
Col. 4 Col. 5 Col. 6 Col. 7 Col. 8 -------- -------- -------- -------- ---------------- 001000DA 003C0090 0000A900 00036FF0 .o........<.Ú... D9B3001C 00000000 A0B5001D 35E60017 ...5............ 41414141 00000600 65EA0004 00000600 .......e....AAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
For each region of pool it examines, the SHOW POOL command displays an allocation summary. This 4-column table lists, in column 2, the types of control blocks identified in the region and records the number of each in column 1. The last two columns represent the amount of the pool region occupied by each type of control block: column 3 records the total number of bytes, and column 4 records the percentage. The summary concludes with an indication of the number of bytes used within the particular pool region, as well as the number of bytes remaining. It provides an estimate of the percentage of the region that has been allocated. For example:
Col.1 Col. 2 Col.3 Col. 4 ----- ------- ----- ------ 3 UNKNOWN = 176 (29% 2 CIDG = 288 (48% 1 CIMSG = 144 (24%) Total space used = 608 out of 608 total bytes, 0 bytes left Total space utilization = 100%

Examples

#1
SDA> SHOW POOL G0BADE00;260 Non-paged dynamic storage pool ------------------------------ Dump of blocks allocated from non-paged pool CIMSG 80BADE00 144 001000DA 003C0090 0000A900 00036FF0 .o........<..... D9B3001C 00000000 A0B5001D 35E60017 ...5............ 41414141 00000600 65EA0004 00000600 .......e....AAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA . . . UNKNOWN 80BADE90 112 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA 41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA . . . CIDG 80BADED0 144 807708BB 003B0090 0004D7E0 000008F0 ..........;...w. 61616161 61616161 61616161 016CE87C ..l.aaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa . . . UNKNOWN 80BADF60 64 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa . . . CIDG 80BADFA0 144 807708BB 003B0090 0003FFC0 0004B1B0 ..........;...w. 61616161 61616161 61616161 016CE94C L.l.aaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa . . . UNKNOWN 80BAE030 48 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa 61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa Summary of non-paged pool contents 3 UNKNOWN = 176 (29%) 2 CIDG = 288 (48%) 1 CIMSG = 144 (24%) Total space used = 608 out of 608 total bytes, 0 bytes left Total space utilization = 100%

SDA> SHOW POOL G0BADE00;260
Non-paged dynamic storage pool
------------------------------
                    Dump of blocks allocated from non-paged pool
  
  
CIMSG   80BADE00   144
                     001000DA 003C0090 0000A900 00036FF0 .o........<.....
                     D9B3001C 00000000 A0B5001D 35E60017 ...5............
                     41414141 00000600 65EA0004 00000600 .......e....AAAA
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
   .
   .
   .
UNKNOWN 80BADE90   112
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
                     41414141 41414141 41414141 41414141 AAAAAAAAAAAAAAAA
   .
   .
   .
CIDG    80BADED0   144
                     807708BB 003B0090 0004D7E0 000008F0 ..........;...w.
                     61616161 61616161 61616161 016CE87C ..l.aaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
   .
   .
   .
UNKNOWN 80BADF60    64
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
   .
   .
   .
CIDG    80BADFA0   144
                     807708BB 003B0090 0003FFC0 0004B1B0 ..........;...w.
                     61616161 61616161 61616161 016CE94C L.l.aaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
   .
   .
   .
UNKNOWN 80BAE030    48
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
                     61616161 61616161 61616161 61616161 aaaaaaaaaaaaaaaa
  
  
Summary of non-paged pool contents
  
    3  UNKNOWN   =      176  (29%)
    2  CIDG      =      288  (48%)
    1  CIMSG     =      144  (24%)
  
Total space used = 608 out of 608 total bytes, 0 bytes left
  
Total space utilization = 100%

This example, which uses a range of values, examines 608 (260₁₆) bytes of nonpaged pool, starting at address 80BADE00₁₆. SDA attempts to identify allocated blocks as it proceeds through the specified region of pool, and displays an allocation summary when it completes the listing.

#2
SDA> SHOW POOL/FREE Non-paged dynamic storage pool ------------------------------ Dump of blocks allocated from non-paged pool UNKNOWN 80E7C400 67136 0000E53B 80E9EC00 00010000 80F16625 %fñ......ìé.;å.. 0000E53B 80E9EC00 00010001 80F16625 %fñ......ìé.;å.. 0000E53B 80E9EC00 00010000 80F166A3 £fñ......ìé.;å.. 0000E53B 80E9EC00 00010001 80F166A3 £fñ......ìé.;å.. 0000E53B 80E9EC00 00010000 80F16041 A`ñ......ìé.;å.. 0000E53B 80E9EC00 00010001 80F16041 A`ñ......ìé.;å.. 0000E53B 80E9EC00 00010000 80F16F32 2oñ......ìé.;å.. 0000E53B 80E9EC00 00010001 80F16F32 2oñ......ìé.;å.. 0000E53D 80EA1B08 00010000 80F16F48 Hoñ.......ê.=å.. 0000E53D 80E9EC00 00010001 80F16F48 Hoñ......ìé.=å.. 0000E53D 80E9EC00 00010000 80F170D8 Øpñ......ìé.=å.. . . .

SDA> SHOW POOL/FREE
Non-paged dynamic storage pool 
------------------------------ 
 
   Dump of blocks allocated from non-paged pool 
 
UNKNOWN 80E7C400 67136 
                         0000E53B 80E9EC00 00010000 80F16625 %fñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010001 80F16625 %fñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010000 80F166A3 £fñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010001 80F166A3 £fñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010000 80F16041 A`ñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010001 80F16041 A`ñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010000 80F16F32 2oñ......ìé.;å.. 
                         0000E53B 80E9EC00 00010001 80F16F32 2oñ......ìé.;å.. 
                         0000E53D 80EA1B08 00010000 80F16F48 Hoñ.......ê.=å.. 
                         0000E53D 80E9EC00 00010001 80F16F48 Hoñ......ìé.=å.. 
                         0000E53D 80E9EC00 00010000 80F170D8 Øpñ......ìé.=å.. 
    . 
    . 
    .

The SHOW POOL/FREE command in this example produces a display similar in format and extent to that presented in Example 1. However, it displays the unallocated portions of pool in addition to those that are used.

#3
SDA> SHOW POOL/PAGED/HEADER Paged dynamic storage pool -------------------------- Dump of blocks allocated from paged pool RSHT 8024FE00 528 802DC710 00380210 00000000 FFFFFF80 ..........8...-. LNM 80250010 96 8015B847 00400060 802D75A0 00000000 .....u-.`.@.G... LNM 80250070 48 8015B847 01400030 802500A0 802D7400 .t-...%.0.@.G... LNM 802500A0 96 8015B847 02400060 802DC170 80250070 p.%.p.-.`.@.G... LNM 80250100 48 8015B847 00400030 802DC510 802E1B60 `.....-.0.@.G... . . .

SDA>  SHOW POOL/PAGED/HEADER
Paged dynamic storage pool
--------------------------
                    Dump of blocks allocated from paged pool
  
  
RSHT    8024FE00   528
                     802DC710 00380210 00000000 FFFFFF80 ..........8...-.
LNM     80250010    96
                     8015B847 00400060 802D75A0 00000000 .....u-.`.@.G...
LNM     80250070    48
                     8015B847 01400030 802500A0 802D7400 .t-...%.0.@.G...
LNM     802500A0    96
                     8015B847 02400060 802DC170 80250070 p.%.p.-.`.@.G...
LNM     80250100    48
                     8015B847 00400030 802DC510 802E1B60 `.....-.0.@.G...
   .
   .
   .

The SHOW POOL/PAGED/HEADER command displays only the name of each block allocated from paged pool, its starting address, its size, and the first four longwords of its contents.

#4
SDA SHOW POOL/RING_BUFFER (Non-Paged Pool History Ring-Buffer (512 entries: Most recent first) Packet Adr Size Type Subtype Caller's PC Routine called Entry Adr -------- ----- ----- ---- -------- --------------- -------- DA9EE5C0 168 IRP 3 D8012BF1 EXE$DEANONPAGED DA4C7750 DAA27EC0 192 DSRV 3 DA591941 EXE$DEANONPAGED DA4C7740 DAD47B40 168 IRP 0 DA591918 EXE$DEANONPAGED DA4C7730 DAAB5400 24 FRK 52 DA590252 EXE$DEANONPAGED DA4C7720 DAAB5400 24 TQE 0 DA591276 EXE$ALONONPAGED DA4C7710 DAD47B40 168 IRP 64 DA59184A EXE$ALONONPAGED DA4C7700 . . . DAA66500 172 IRP 64 DB251C80 EXE$ALONONPAGED DA4C7770 DAA32300 192 CIMSG 0 DA54C2C8 EXE$DEANONPAGED DA4C7760

SDA SHOW POOL/RING_BUFFER
   (Non-Paged Pool History Ring-Buffer 
    (512 entries: Most recent first) 
   Packet Adr  Size  Type  Subtype Caller's PC   Routine called      Entry Adr 
    --------  -----  -----  ----    --------    ---------------      -------- 
    DA9EE5C0    168  IRP      3     D8012BF1    EXE$DEANONPAGED      DA4C7750 
    DAA27EC0    192  DSRV     3     DA591941    EXE$DEANONPAGED      DA4C7740 
    DAD47B40    168  IRP      0     DA591918    EXE$DEANONPAGED      DA4C7730 
    DAAB5400     24  FRK     52     DA590252    EXE$DEANONPAGED      DA4C7720 
    DAAB5400     24  TQE      0     DA591276    EXE$ALONONPAGED      DA4C7710 
    DAD47B40    168  IRP     64     DA59184A    EXE$ALONONPAGED      DA4C7700 
    . 
    . 
    . 
    DAA66500    172  IRP     64     DB251C80    EXE$ALONONPAGED      DA4C7770 
    DAA32300    192  CIMSG    0     DA54C2C8    EXE$DEANONPAGED      DA4C7760

This example of the SHOW POOL/RING_BUFFER command displays the contents of the nonpaged pool history ring buffer, with the most recent entries displayed first.

#5
SDA SHOW POOL/STATISTICS List head List Alloc. Alloc. Address Size Attempts Failures Deallocs. -------- ----- ---------- ---------- ---------- D80A9030 64 2077039 1121 2073964 D80A9038 128 6323789 4502 6309357 D80A9040 192 21085351 1903 21078538 D80A9048 256 502388 2025 499705 D80A9050 320 1372168 3512 1367707 D80A9058 384 32649 774 31899 D80A9060 448 2463316 1025 2462243 D80A9068 512 357170 2181 354754 D80A9070 576 293998 2438 291476 D80A9078 640 168145 645 167482 D80A9080 704 83645 2043 81547 D80A9088 768 34852 120 34726 D80A9090 832 21263 44 21215 . . . D80A9290 4928 2305645 3283 2302249 D80A9298 4992 9 0 6 D80A92A0 5056 0 0 0 D80A92A8 5120 1 0 0

SDA SHOW POOL/STATISTICS
        List head    List      Alloc.        Alloc. 
         Address     Size     Attempts      Failures      Deallocs. 
        --------    -----    ----------    ----------    ---------- 
        D80A9030       64       2077039          1121       2073964 
        D80A9038      128       6323789          4502       6309357 
        D80A9040      192      21085351          1903      21078538 
        D80A9048      256        502388          2025        499705 
        D80A9050      320       1372168          3512       1367707 
        D80A9058      384         32649           774         31899 
        D80A9060      448       2463316          1025       2462243 
        D80A9068      512        357170          2181        354754 
        D80A9070      576        293998          2438        291476 
        D80A9078      640        168145           645        167482 
        D80A9080      704         83645          2043         81547 
        D80A9088      768         34852           120         34726 
        D80A9090      832         21263            44         21215 
        . 
        . 
        . 
        D80A9290     4928       2305645          3283       2302249 
        D80A9298     4992             9             0             6 
        D80A92A0     5056             0             0             0 
        D80A92A8     5120             1             0             0

This example of the SHOW POOL/STATISTICS command displays usage statistics about each pool list.

#6
SDA SHOW POOL/SUMMARY Summary of non-paged pool contents 145 UNKNOWN = 191616 (18%) 2 ADP = 1280 (0%) 35 ACB = 2624 (0%) 3 AQB = 192 (0%) 17 CRB = 2368 (0%) 16 DDB = 2048 (0%) 355 FCB = 113600 (11%) 3 FRK = 18240 (1%) 16 IDB = 1088 (0%) 42 IRP = 8064 (0%) 20 PCB = 10240 (1%) 48 TQE = 3072 (0%) 70 UCB = 21696 (2%) 5 VCB = 1280 (0%) 299 WCB = 51008 (5%) 287 BUFIO = 112128 (11%) 5 TYPAHD = 1920 (0%) 2 MVL = 4736 (0%) 3 NET = 4160 (0%) 15 CXB = 23616 (2%) 5 NDB = 2112 (0%) 14 DPT = 132928 (13%) . . . Total space used = 1016896 out of 1068032 total bytes, 51136 bytes left Total space utilization = 95% Summary of paged pool contents 33 UNKNOWN = 36480 (15%) 1 PQB = 2256 (0%) 224 GSD = 14240 (6%) 153 KFE = 10864 (4%) 3 MTL = 96 (0%) 118 KFRH = 46736 (20%) 1 RSHT = 528 (0%) 1 XWB = 18048 (7%) 225 LNM = 16720 (7%) 4 KFD = 224 (0%) 1 KFPB = 16 (0%) 2 CIA = 29264 (12%) 1 CHIP = 9216 (4%) 41 ORB = 5248 (2%) 2 ARB = 34912 (15%) 1 PTC = 3072 (1%) 7 OCB = 1344 (0%) 1 PGD = 208 (0%) Total space used = 229472 out of 524800 total bytes, 295328 bytes left Total space utilization = 43%

SDA SHOW POOL/SUMMARY
Summary of non-paged pool contents 
 
  145  UNKNOWN   =   191616  (18%) 
    2  ADP       =     1280  (0%) 
   35  ACB       =     2624  (0%) 
    3  AQB       =      192  (0%) 
   17  CRB       =     2368  (0%) 
   16  DDB       =     2048  (0%) 
  355  FCB       =   113600  (11%) 
    3  FRK       =    18240  (1%) 
   16  IDB       =     1088  (0%) 
   42  IRP       =     8064  (0%) 
   20  PCB       =    10240  (1%) 
   48  TQE       =     3072  (0%) 
   70  UCB       =    21696  (2%) 
    5  VCB       =     1280  (0%) 
  299  WCB       =    51008  (5%) 
  287  BUFIO     =   112128  (11%) 
    5  TYPAHD    =     1920  (0%) 
    2  MVL       =     4736  (0%) 
    3  NET       =     4160  (0%) 
   15  CXB       =    23616  (2%) 
    5  NDB       =     2112  (0%) 
   14  DPT       =   132928  (13%) 
   .
   .
   .
 
Total space used = 1016896 out of 1068032 total bytes, 51136 bytes left 
 
Total space utilization = 95% 
 
Summary of paged pool contents 
 
   33  UNKNOWN   =    36480  (15%) 
    1  PQB       =     2256  (0%) 
  224  GSD       =    14240  (6%) 
  153  KFE       =    10864  (4%) 
    3  MTL       =       96  (0%) 
  118  KFRH      =    46736  (20%) 
    1  RSHT      =      528  (0%) 
    1  XWB       =    18048  (7%) 
  225  LNM       =    16720  (7%) 
    4  KFD       =      224  (0%) 
    1  KFPB      =       16  (0%) 
    2  CIA       =    29264  (12%) 
    1  CHIP      =     9216  (4%) 
   41  ORB       =     5248  (2%) 
    2  ARB       =    34912  (15%) 
    1  PTC       =     3072  (1%) 
    7  OCB       =     1344  (0%) 
    1  PGD       =      208  (0%) 
 
Total space used = 229472 out of 524800 total bytes, 295328 bytes left 
 
Total space utilization = 43%

This example of the SHOW POOL/SUMMARY command displays an allocation summary for each region of pool.

SHOW PORTS

Displays those portions of the port descriptor table (PDT) that are port independent.

Format

SHOW PORTS [/qualifier[,...]]

Parameters

None.

Qualifiers

/ADDRESS=pdt-address
Displays the specified port descriptor table (PDT).¹⁰
/BUS[=bus-address]
Displays BUS (LAN device) structure data.
/CHANNEL[=channel-address]
Displays channel (CH) data.
/DEVICE
Displays the network path description for a channel.
/MESSAGE
Displays the message data associated with a virtual circuit (VC).
/NODE=name
Displays virtual circuit (VC) information associated with the named node on the specified PDT. You must use this qualifier with /ADDRESS qualifier.

/VC[=vc-address]
Displays the virtual circuit data.

Description

The SHOW PORTS command provides port-independent information from the port descriptor table (PDT) for those CI ports with full SCS connections. This information is used by all system communications services (SCS) port drivers.
Note that the SHOW PORTS command does not display similar information about UDA ports, BDA ports, and similar controllers.
The SHOW PORTS command also defines symbols for PEDRIVER based on the cluster configuration. These symbols include the following information:

Virtual circuit (VC) control blocks for each of the remote systems
BUS data structure for each of the local LAN adapters
Some of the data structures used by both PEDRIVER and the LAN drivers

The following symbols are defined automatically:

Symbol Explanation or Example

VC_nodename VC_NODE1, address of the local node's virtual circuit to node NODE1

CH_nodename The preferred channel for the virtual circuit; for example, CH_NODE1, address of the local node's preferred channel to node NODE1

BUS_busname BUS_ETA, address of the local node's BUS structure associated with LAN adapter ETA0

PE_PDT Address of PEDRIVER's port descriptor table

MGMT_VCRP_busname MGMT_VCRP_ETA, address of the management VCRP for BUS ETA

HELLO_VCRP_busname HELLO_VCRP_ETA, address of the HELLO message VCRP for BUS ETA

VCIB_busname VCIB_ETA, address of the VCIB for BUS ETA

UCB_LAVC_busname UCB_LAVC_ETA, address of the LAN device's UCB used for the local area VAXcluster protocol

UCB0_LAVC_busname UCB0_LAVC_ETA, address of the LAN device's template UCB

LDC_LAVC_busname LDC_LAVC_ETA, address of the LDC structure associated with LAN device ETA

LSB_LAVC_busname LSB_LAVC_ETA, address of the LSB structure associated with LAN device ETA

These symbols equate to system addresses for the corresponding data structures. You can use these symbols, or an address, after the equal sign in SDA commands.
The SHOW PORTS command produces several displays. The initial display, the PDT summary page, lists the PDT address, port type, device name, and driver name for each PDT. Subsequent displays provide information taken from each PDT listed on the summary page.
You can use the /ADDRESS qualifier of the SHOW PORTS command to produce more detailed information about a specific port. The first display of the SHOW PORTS/ADDRESS command duplicates the last display of the SHOW PORTS command, listing information stored in the port's PDT. Subsequent displays list information about the port blocks and virtual circuits associated with the port.

Symbol	Explanation or Example
VC_nodename	VC_NODE1, address of the local node's virtual circuit to node NODE1
CH_nodename	The preferred channel for the virtual circuit; for example, CH_NODE1, address of the local node's preferred channel to node NODE1
BUS_busname	BUS_ETA, address of the local node's BUS structure associated with LAN adapter ETA0
PE_PDT	Address of PEDRIVER's port descriptor table
MGMT_VCRP_busname	MGMT_VCRP_ETA, address of the management VCRP for BUS ETA
HELLO_VCRP_busname	HELLO_VCRP_ETA, address of the HELLO message VCRP for BUS ETA
VCIB_busname	VCIB_ETA, address of the VCIB for BUS ETA
UCB_LAVC_busname	UCB_LAVC_ETA, address of the LAN device's UCB used for the local area VAXcluster protocol
UCB0_LAVC_busname	UCB0_LAVC_ETA, address of the LAN device's template UCB
LDC_LAVC_busname	LDC_LAVC_ETA, address of the LDC structure associated with LAN device ETA
LSB_LAVC_busname	LSB_LAVC_ETA, address of the LSB structure associated with LAN device ETA

Examples

#1
SDA> SHOW PORTS/ADDR=PE_PDT

VAXcluster data structures -------------------------- --- Port Descriptor Table (PDT) 806C37A0 --- Type: 03 pe Characteristics: 0000 Msg Header Size 32 Connect 80799F94 Recyclh_Msg_Buf 8079AD8A Max Xfer Bcnt FFFFFFFF Dealloc_Dg_Buf 8079AFDA Request_Data 8079B1CC DG Header Size 288 Disconnect 8079A06B Send_Data 8079B215 Poller Sweep 31 Unmap 8079B510 Send_Dg_Buf 8079B03E Fork Block W.Q. empty Map 8079B111 Send_Msg_Buf 8079AEA8 UCB Address 806C0E50 Map_Bypass 8079B0F8 Send_Cnt_Msg_Buf 8079AEAF ADP Address 00000000 Map_Irp 8079B101 Read_Count 80796D59 Accept 80799FEC Map_Irp_Bypass 8079B0F0 Rls_Read_Count 80796DD3 Alloc_Dg_Buf 8079AFC6 Queue_Dg_Buf 8079AFE0 Mreset 80799C94 Alloc_Msg_Buf 8079AD05 Queue_Mult_Dgs 8079AFE8 Mstart 80799C9E Dealloc_Msg_Buf 8079ADE3 Recycl_Msg_Buf 8079AD94 Stop_Vcs 8079BEDD Dealloc_Msg_Buf_Reg 8079ADF6 Reject 8079A036 Send_Dg_Reg 8079B031 --- Port Block 80B091B0 --- Status: 0001 authorize VC Count: 5 Secs Since Last Zeroed: 311728 SBUF Size 436 LBUF Size 1788 SBUF Count 12 LBUF Count 1 SBUF Max 768 LBUF Max 384 SBUF Quo 13 LBUF Quo 1 SBUF Miss 18 LBUF Miss 12235 SBUF Allocs 499579 LBUF Allocs 16824 SBUFs In Use 0 LBUFs In Use 0 Peak SBUF In Use 14 Peak LBUF In Use 34 SBUF Queue Empty 0 LBUF Queue Empty 0 TR SBUF Queue Empty 0 No SBUF for ACK 0 Bus Addr Bus LAN Address Error Count Last Error Time of Last Error -------- --- ----------------- ----------- ---------- ----------------------- 80B08920 LCL 00-00-00-00-00-00 0 80B08090 ESA AA-00-04-00-33-FD 75 00000334 25-MAR-1993 23:39:28.27 80B008B0 XQA 08-00-2B-0A-6A-6B 12 0000002C 23-MAR-1993 12:43:59.07 80AF6E90 XQB 08-00-2B-08-CB-B8 0 --- Virtual Circuit (VC) Summary --- VC Addr Node SCS ID Lcl ID Status Summary Last Event Time -------- -------- ------ ------ ----------------- ----------------------- 806CD1A0 NODE12 64819 223/DF open,path 1-JAN-1993 00:00:00.03 806CD6E0 NODE13 64856 222/DE open,path 1-JAN-1993 00:00:07. 806CD9A0 NODE14 64587 221/DD open,path 22-MAR-1993 18:34:10.18 8070D530 NODE15 64555 220/DC open,path 22-MAR-1993 18:57:33. 8074AB60 NODE16 64841 219/DB open,path 25-MAR-1993 20:42:38.20

The SHOW PORTS/ADDRESS command displays the port descriptor table (PDT) structure, some of the fields in the PORT structure, the BUS summary, and the virtual circuit summary.

#2
SDA>SHOW PORTS/BUS=BUS_ESA

VAXcluster data structures -------------------------- --- BUS: 80B08090 (ESA) Device: ES_LANCE LAN Address: AA-00-04-00-33-FD--- LAN Hardware Address: 08-00-2B-12-AE-A1 Status: 00000A03 run,online,xmt_chaining_disabled,restart ------- Transmit ------ ------- Receive ------- ---- Structure Addresses --- Msg Xmt 434107 Msg Rcv 1170090 PORT Address 80B091B0 Mcast Msgs 103939 Mcast Msgs 859601 VCIB Addr 80B08248 Mcast Bytes 13304192 Mcast Bytes 96272072 HELLO Message Addr 80B082D8 Bytes Xmt 59789962 Bytes Rcv 146674695 BYE Message Addr 80B08468 Outstand I/Os 0 Buffer Size 1424 Delete BUS Rtn Adr 8079E424 Xmt Errors 75 Rcv Ring Size 8 Last Xmt Error 00000334 Time of Last Xmt Error 25-MAR-1993 23:39:28.27 --- Receive Errors ---- ------ BUS Timer ------ ----- Datalink Events ------ TR Mcast Rcv 0 Handshake TMO 8079FA50 Last 22-MAR-1993 18:25:25.12 Rcv Bad SCSID 0 Listen TMO 8079FA54 Last Event 00001202 Rcv Short Msg 0 HELLO timer 1 Port Usable 1 Fail CH Alloc 0 HELLO Xmt err 38 Port Unusable 0 Fail VC Alloc 0 Address Change 1 Wrong PORT 0 Port Restart Fail 0

The SHOW PORTS/BUS=BUS_id command displays the data for the specified BUS structure. The last event time is at the top of the lower right-hand column. If an error was counted, the last error time is displayed under Xmt Errors. The normal status is: RUN, ONLINE, and RESTART.

The Xmt Error field indicates a problem detected during transmission of a message. The error rate should be less than one per hour.

#3
SDA> SHOW PORTS/VC=VC_BREE

VAXcluster data structures -------------------------- --- Virtual Circuit (VC) 806CD6E0 --- Remote System Name: BREE (0:VAX) Remote SCSSYSTEMID: 64856 Local System ID: 222 (DE) Status: 0005 open,path ------ Transmit ------- ------ VC Closures ---- ---- Congestion Control ---- Msg Xmt 216686 SeqMsg TMO 0 UnAcked Msgs 1 Unsequence 3 CC DFQ Empty 0 Pipe Quota Reached 33 Sequence 149643 Topology Change 0 CMD Queue Len 0 ReXmt 545 NPAGEDYN Low 0 Max CMD Queue Len 5 Lone ACK 66495 RSVP Threshold 15 Bytes Xmt 33309074 Pipe Quota 31 ------- Receive ------- - Messages Discarded - ----- Channel Selection ---- Msg Rcv 194492 No Xmt Chan 0 Preferred Channel 80704320 Unsequence 1 Rcv Short Msg 0 Delay Time FB7E6F80 Sequence 178905 Illegal Seq Msg 0 Buffer Size 1424 ReRcv 30 Bad Checksum 0 Channel Count 6 Lone ACK 15531 TR DFQ Empty 0 Channel Selections 3920 Cache 26 TR MFQ Empty 0 Protocol 1.3.0 Ill ACK 0 CC MFQ Empty 0 Open 1-JAN-1993 00:00:07.03 Bytes Rcv 52086897 Cache Miss 0 Cls 17-NOV-1858 00:00:00.00 -- Channel Summary for Virtual Circuit (BREE ) 806CD6E0 -- Address Type Xmt Time Size Preferred Best Last State Change -------- --------- -------- ---- --------- -------- ----------------------- 80704320 Preferred FB7E6F80 1424 812 617 22-MAR-1993 18:14:07.01 807043E0 Active FB7E735E 1424 95 4 25-MAR-1993 20:01:15.18 807050D0 Active FB7E7FED 1424 431 0 25-MAR-1993 20:01:15.18 806CD820 Active FB7E728E 1424 868 1470 25-MAR-1993 20:01:15.18 80705010 Active FB7E7043 1424 738 9 25-MAR-1993 20:00:58.17 806CD8E0 Active FB7E7BB5 1424 976 1744 25-MAR-1993 20:00:31.17

Note

¹⁰ You can find the pdt-address for any active connection on the system in the PDT summary page display of the SHOW PORTS command. This command also defines the symbol PE_PDT. CDT addresses are also stored in many individual data structures related to SCS connections; for instance, in the path block displays of the SHOW CLUSTER/SCS command.

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m:n	Range of virtual addresses in pool from m to n
m;n	Range of virtual addresses in pool starting at m and continuing for n bytes