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HP OpenVMS System Management Utilities Reference
Manual
Chapter 22
Show Cluster Utility
22.1 SHOW CLUSTER Description
The OpenVMS Show Cluster utility (SHOW CLUSTER) monitors nodes in an
OpenVMS Cluster and displays information about cluster-specific
activity and performance. SHOW CLUSTER collects information from the
System Communications Services (SCS) database, the connection
management database, and the port database.
Table 22-1 shows the classes of data output by SHOW CLUSTER.
Table 22-1 Classes of SHOW CLUSTER Information
| Class |
Description |
|
CIRCUITS
|
Describes information about the virtual circuits on a system, such as
the local port name, the remote port type and number, the number of
connections on the circuit, and the circuit state.
|
|
CLUSTER
|
Displays general OpenVMS Cluster information, such as the time the
cluster was formed, the last time a system joined or left the cluster,
and the cluster quorum.
|
|
CONNECTIONS
|
Describes connections established over a virtual circuit, such as the
names of the local and remote processes, and the state of the
connection.
|
|
COUNTERS
|
Displays accumulated statistics on connection traffic, such as the
number of application datagrams, and the number of application messages
that have been sent or received.
|
|
CREDITS
|
Displays the send and receive credits for each connection.
|
|
ERRORS
|
Displays a count of errors that have occurred on each port, along with
information related to reinitializing those ports.
|
|
LOCAL_PORTS
|
Describes the local system interface to the OpenVMS Cluster, such as
the name, number, and status of each port, and the number of entries in
the queues associated with each port.
|
|
MEMBERS
|
Contains node-specific information, such as each node's identification
numbers, quorum status, and connection status.
|
|
SYSTEMS
|
Lists information about all systems in the OpenVMS Cluster, such as the
node identification numbers, node names, hardware types, and software
versions.
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Each class contains a number of fields of data. Table 22-2 through
Table 22-10 list the fields of data in each class.
Table 22-2 CIRCUITS Class Fields
| Field Name |
Description |
|
CABLE_STATUS
|
Status of the CI circuit paths A and B. Crossed cables are also noted.
The field applies only to the CI. Possible displays are as follows:
|
-
|
Paths A and B are bad.
|
|
A-
|
Path A is good.
|
|
-B
|
Path B is good.
|
|
A-B
|
Paths A and B are good.
|
|
CROSSED
|
Cables are crossed.
|
|
|
CIR_STATE
|
State of the virtual circuit. Possible displays are as follows:
|
CLOSED
|
Circuit is closed.
|
|
OPEN
|
Circuit is open.
|
|
ST_REC
|
Circuit has a start received.
|
|
ST_SENT
|
Circuit has a start sent.
|
|
VC_FAIL
|
Virtual circuit failure is in progress.
|
|
|
LD_CLASS
|
The circuit's current capacity rating.
|
|
LPORT_NAME
|
Device name of the local port associated with the circuit (PAA0, PAB0,
PEA0).
|
|
MGT_PRIORITY
|
Priority value assigned to the circuit by management action.
|
|
NUM_CONNECTIONS
|
Number of connections on the circuit between the local and remote
systems.
|
|
PRIORITY
|
Circuit's current priority, which is the sum of the management
priorities assigned to the circuit and the associated local port.
|
|
REM_STATE
|
State of the remote port. Possible displays are as follows:
|
DISAB
|
Remote port is disabled.
|
|
ENAB
|
Remote port is enabled.
|
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M_DISAB
|
Remote port is in maintenance mode and is disabled.
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M_ENAB
|
Remote port is in maintenance mode and is enabled.
|
|
M_UNINIT
|
Remote port is in maintenance mode and has not been initialized.
|
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UNINIT
|
Remote port has not been initialized.
|
|
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RP_FUNCTIONS
|
Function mask of the remote port.
|
|
RPORT_NUM
|
Port number of the remote port associated with the circuit. The field
applies only to CI.
|
|
RP_OWNER
|
Port number of the remote port owner.
|
|
RP_REVISION
|
Hardware or microcode revision number of the remote port.
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|
RP_TYPE
|
Type of remote port associated with the circuit. Examples of some
possible types might include: CIMNA, KFMSA, SHAC, SII, BVPSSP (a BVP
storage systems port), CI780, CI750, CIBCA-A and CIBCA-B, RF and TF
devices (for example RF73 or TF85), HSC devices (for example, HSC65 or
HSC90), Ethernet, PASSTH (port is in passthrough mode), and so on.
|
|
SCS_WAITERS
|
Number of connections waiting to send SCS control messages on the
virtual circuit.
|
Table 22-3 CLUSTER Class Fields
| Field Name |
Description |
|
CL_EXPECTED_VOTES
|
The number of votes the cluster has ever seen -- or could see, as
determined by the connection manager. The value is based on the maximum
value of CL_EXPECTED_VOTES, the value for EXPECTED_VOTES that is
specified by each node, and the sum of the cluster votes (CL_VOTES).
CL_QUORUM is derived from CL_EXPECTED_VOTES.
|
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CL_MEMBERS
|
Number of processors participating in the cluster.
|
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CL_QDVOTES
|
Number of votes contributed by the quorum disk.
|
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CL_QUORUM
|
The number of votes that must be present for the cluster to function
and permit user activity. CL_QUORUM is equal to (CL_EXPECTED_VOTES + 2)
divided by 2.
|
|
CL_VOTES
|
Total number of votes contributed by all members of the cluster at any
point in time.
|
|
FORMED
|
Time at which the cluster was formed, expressed as dd-mmm-yy hh:mm.
|
|
LAST_TRANSITION
|
Last time at which a system left or joined the cluster, expressed as
dd-mmm-yy hh:mm.
|
|
MEMSEQ
|
Membership state sequence number, which changes whenever a node joins
or leaves the cluster.
|
|
QD_NAME
|
Full device name of the quorum disk.
|
|
QF_VOTE
|
Indicates whether or not the quorum disk is contributing any votes
towards the cluster quorum.
|
Table 22-4 CONNECTIONS Class Fields
| Field Name |
Description |
|
CON_STATE
|
The state of the connection. Possible displays are as follows:
|
ACCP_SENT
|
Accept request has been sent.
|
|
CLOSED
|
Connection is closed.
|
|
CON_ACK
|
Connect request has been sent and acknowledged.
|
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CON_REC
|
Connect request has been received.
|
|
CON_SENT
|
Connect request has been sent.
|
|
DISC_ACK
|
Disconnect request is acknowledged.
|
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DISC_MTCH
|
Disconnect request is matched.
|
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DISC_REC
|
Disconnect request has been received.
|
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DISC_SENT
|
Disconnect request has been sent.
|
|
LISTEN
|
Connection is in the listen state.
|
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OPEN
|
Connection is open.
|
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REJ_SENT
|
Reject has been sent.
|
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VC_FAIL
|
Virtual circuit has failed.
|
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|
LOC_CONID
|
Identification number of the local side of the connection.
|
|
LOC_PROC_NAME
|
Name of the local process associated with the connection.
|
|
REM_CONID
|
Identification number of the remote side of the connection. This
information does not apply for connections in the listen state.
|
|
REM_PROC_NAME
|
Name of the remote process associated with the connection. This
information does not apply for connections in the listen state.
|
|
SCS_STATE
|
SCS send blocked state. If the connection is waiting to send an SCS
control block message, the SCS send blocked state indicates what kind
of message it is waiting to send. Possible displays are as follows:
|
ACCP_PEND
|
Waiting to send an accept request.
|
|
CLEAR
|
Not blocked.
|
|
CON_PEND
|
Waiting to send a connection request.
|
|
CR_PEND
|
Waiting to send credit.
|
|
DCR_PEND
|
Waiting to send credit in preparation for a disconnect.
|
|
DISC_PEND
|
Waiting to send a disconnect request.
|
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REJ_PEND
|
Waiting to send a reject request.
|
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Table 22-5 COUNTERS Class Fields
| Field Name |
Description |
|
BDT_WAITS
|
Number of times this connection had to wait for a buffer descriptor.
|
|
BLKS_REQ
|
Number of block-request data commands initiated to block transfer data
from the remote system to the local system.
|
|
BLKS_SENT
|
Number of block-send data commands initiated to block-transfer data
from the local system to the remote system.
|
|
CR_WAITS
|
Number of times this connection had to wait for send credit.
|
|
DGS_DSCRD
|
Number of application datagrams discarded by the port driver.
|
|
DGS_RCVD
|
Number of application datagrams received by the local system over the
connection from the remote system and given to SYSAP.
|
|
DGS_SENT
|
Number of application datagrams sent over the connection.
|
|
KB_MAPPED
|
Number of kilobytes of data mapped for block transfer.
|
|
KB_RCVD
|
Number of kilobytes of data received by the local system from the
remote system through request-data commands.
|
|
KB_SENT
|
Number of kilobytes of data sent from the local system to the remote
system through send-data commands.
|
|
MSGS_RCVD
|
Number of application datagram messages received over the connection.
|
|
MSGS_SENT
|
Number of application datagram messages sent over the connection.
|
Table 22-6 CREDITS Class Fields
| Field Name |
Description |
|
INIT_REC
|
Initial receive credit extended to the remote system when the
connection was made.
|
|
MIN_REC
|
Minimum receive credit (minimum send credit required by the remote
system).
|
|
MIN_SEND
|
Minimum send credit.
|
|
PEND_REC
|
Receive credit not yet extended to the remote system.
|
|
RECEIVE
|
Receive credit (send credit held by the remote system).
|
|
SEND
|
Current send credit.
|
Table 22-7 ERRORS Class Fields
| Field Name |
Description |
|
ERT_COUNT
|
Number of port reinitialization attempts remaining.
|
|
ERT_MAX
|
Total number of times a recovery from fatal port errors can be
attempted by shutting down all virtual circuits and connections and
reinitializing the port.
|
|
NUM_ERRORS
|
Number of errors that have been logged on the port since the system was
booted. This number includes errors encountered in reinitialization
attempts as well as recoverable errors, such as virtual circuit
failure. This is the same error count as that displayed by the DCL
command SHOW DEVICE.
|
Table 22-8 LOCAL_PORTS Class Fields
| Field Name |
Description |
|
BUFF_DESCR
|
Number of buffer descriptors in use.
|
|
CMDS_QUEUED
|
Total number of messages, datagrams, and port commands queued for
transmission at all priorities by the port.
|
|
COUNTER_OWNER
|
Name of the process currently using the port traffic counters.
|
|
DGI_MAP
|
A 16-bit bit map displayed as four hexadecimal digits. Each bit in the
map represents a port in the cluster from which datagram reception has
been disabled.
|
|
DG_OVRHD_SIZE
|
Number of bytes of port header, SCS header, and DECnet header in a
datagram.
|
|
DGS_FREE
|
Number of free datagram buffers currently queued for receive commands.
|
|
FORM_CIRCS
|
Number of formative circuits (circuits in the process of opening) from
the port.
|
|
FREE_BUFF
|
Number of CI buffer descriptors free for use.
|
|
LB_STATUS
|
Loopback status of each cable from the port to the star coupler. The
field applies only to CI. Possible displays are as follows:
|
A-B
|
Loopback tests pass on paths A and B.
|
|
A-#
|
Loopback tests pass on path A.
|
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#-B
|
Loopback tests pass on path B.
|
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#-#
|
Loopback tests failed on paths A and B.
|
|
N/A
|
Loopback tests are not being done.
|
|
|
LOG_MAP
|
A 16-bit bit map displayed as four hexadecimal digits. Each bit in the
map represents a port in the cluster for which an error was logged.
Errors are logged when data provided by the configuration database
on the local system conflicts with data provided by the remote system.
When a conflict is discovered and an error is logged, virtual circuits
to the remote system can no longer be established.
|
|
LP_LD_CLASS
|
Hard-coded capacity value of the port, based on the megabits/second
rate of the interconnect of the port.
|
|
LP_PRIORITY
|
Management priority assigned to the port.
|
|
LP_STATUS
|
Status of the local port. The port is either on line or off line.
|
|
LP_TYPE
|
Device type of the port (CI780, CI750).
|
|
MAX_PORT
|
Largest port number to which a virtual circuit open is attempted.
|
|
MSGS_FREE
|
Number of free message buffers currently queued for receives commands.
|
|
MSG_HDR_SIZE
|
Number of bytes of port header and SCS header in a message.
|
|
NAME
|
Device name of the local port.
|
|
OPEN_CIRCS
|
Number of virtual circuits open from the port.
|
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POOL_WAITERS
|
Number of processes waiting for nonpaged pool resources for message
buffers.
|
|
PORT_NUM
|
Port number assigned to the port.
|
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PRT_MAP
|
A 16-bit bit map displayed as three hexadecimal digits. Each bit in the
map represents a port in the cluster that has been recognized by the
host system.
|
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RSPS_QUEUED
|
Total number of responses of all kinds received from the port but not
yet processed.
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Table 22-9 MEMBERS Class Fields
| Field Name |
Description |
|
ACK_LM
|
Maximum number of OpenVMS Cluster messages the remote system can
receive before sending an acknowledgment.
|
|
ACKR_SQ
|
Sequence number of the last acknowledgment received over the cluster
connection.
|
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CNX_STATE
|
State of the cluster connection. Possible displays are as follows:
|
ACCEPT
|
Initial connection is accepted.
|
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CLOSED
|
Connection is closed.
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CONNECT
|
Initial connection is being accepted.
|
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DEAD
|
No connection is possible.
|
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DISCONNECT
|
Disconnection is in progress.
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NEW
|
No attempt to make a connection has been made yet.
|
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OPEN
|
Connection is open.
|
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REACCEPT
|
Connection is accepting the reconnect request.
|
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RECONNECT
|
Connection is attempting to reconnect.
|
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WAIT
|
Timeout is in progress.
|
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CSID
|
Cluster system identification number. This number is unique over the
life of the cluster. Unlike SYS_ID, this identification number may
change when the system reboots.
|
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DIR_WT
|
Lock manager distributed directory weight.
|
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EXPECTED_VOTES
|
Maximum number of votes that an individual node can encounter. Used as
an initial estimate for computing CL_EXPECTED_VOTES.
The cluster manager sets this number using the EXPECTED_VOTES
system parameter. It is possible for this field to display a number
smaller than the EXPECTED_VOTES parameter setting if the REMOVE_NODE
option was used to shut down a cluster member or the SET
CLUSTER/EXPECTED_VOTES DCL command was used since this node was last
rebooted.
The dynamic value for EXPECTED_VOTES used clusterwide is the
CL_EXPECTED_VOTES field, which is described in Table 22-3.
|
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PROTOCOL
|
Protocol version number and ECO level of the connection management
software.
|
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QDVOTES
|
Number of votes the remote system recommends be contributed by the
quorum disk. Normally, the cluster manager sets this number using the
system parameter QDSKVOTES.
|
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QF_ACTIVE
|
Indicates whether the remote system's quorum file is accessible.
|
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QF_SAME
|
Indicates whether the local and remote systems agree about which disk
is the quorum disk.
|
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QF_WATCHER
|
Remote system has an active connection to the quorum disk and can
verify its connection for members unable to access the disk directly.
|
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QUORUM
|
Derived from EXPECTED_VOTES and calculated by the connection manager.
It represents an initial value for the minimum number of votes that
must be present for this node to function. The dynamic QUORUM value is
the CL_QUORUM field, which is described in the CLUSTER class category
in Table 22-3.
|
|
RCVD_SQ
|
Sequence number of the last message received over the OpenVMS Cluster
connection.
|
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RECNXINTERVAL
|
Displays the time (in seconds) that the connection manager will wait
before timing out the corresponding connection. It is the maximum of
the value contained in the system parameter RECNXINTERVAL on the local
node and the amount of time it would take for the connection manager on
the remote node to discover that the connection is broken.
|
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SEND_SQ
|
Sequence number of the next message to be sent over the OpenVMS Cluster
connection.
|
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STATUS
|
Status of the node in the cluster. Possible displays are as follows:
|
blank
|
System is not being considered as a cluster member.
|
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BRK_MEM
|
System is a member of the cluster, but the connection manager has lost
communication with it.
|
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BRK_NEW
|
System has just booted, but has not yet joined the cluster and the
connection manager has lost communication with it.
|
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BRK_NON
|
Connection manager has lost communication with the system and the
system is no longer a member of the cluster.
|
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BRK_REM
|
Connection manager has lost communication with the system, and the
system has been removed from the cluster.
|
|
MEMBER
|
System is participating in the cluster.
|
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NEW
|
System has just booted, but has not yet joined the cluster. If this
system would normally be a member of the cluster and is displaying NEW
in this field, you can expect that the display will eventually change
to MEMBER.
|
|
NON
|
System is not a member of the cluster.
|
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REMOVED
|
System has been removed from the cluster.
|
|
|
SW_VERS
|
Indicator of the software version running on the node.
|
|
TRANSITION_TIME
|
Time of the system's last change in membership status. (See the STATUS
field.)
|
|
UNACKED
|
Number of unacknowledged OpenVMS Cluster messages received by the
remote system.
|
|
VOTES
|
Number of votes the remote node contributes toward quorum. Normally,
the cluster manager sets this number with the system parameter VOTES.
|
|
WARMCDRPS
|
Number of CDRPs on the CDRP free queue.
|
Table 22-10 SYSTEMS Class Fields
| Field Name |
Description |
|
DG_SIZE
|
Maximum number of bytes of application data in datagrams sent over the
circuit.
|
|
HW_TYPE
|
System hardware type (for example, VAXstation 3100 or HS70). (Enclose
the system type between double quotation marks.)
|
|
HW_VERS
|
Hardware configuration and revision levels of the remote system.
|
|
INCARNATION
|
Unique 16-digit hexadecimal number established when the system is
booted.
|
|
MSG_SIZE
|
Maximum number of bytes of application data in messages sent over the
circuit.
|
|
NODE
|
Node name of the remote system. Normally, the cluster manager sets the
node name using the system parameter SCSNODE. The node name should be
the same as the DECnet node name. (Note that SCSNODE cannot be more
than six characters.)
|
|
NUM_CIRCUITS
|
Number of virtual circuits between the local system and remote systems.
|
|
SOFTWARE
|
Name and version of the operating system currently running on the
remote system.
|
|
SYS_ID
|
Identification number of the remote system. Normally, the cluster
manager sets this number using the system parameters SCSSYSTEMID and
SCSSYSTEMIDH. This number should be the same as the DECnet node number.
|
|
