Viewing System Resource Information

System Memory

Display the memory statistics for the system by using the show memory command. It displays the number of bytes, the number of blocks, the average block size in both free and allocated memory, and the maximum block size of free memory in table form. In addition, it displays the number of blocks currently allocated, the average allocated block size, and the maximum number of bytes allocated at any given time (peak use, for example).

ORACLE# show memory
  status     bytes     blocks   avg block  max block
 -------- ---------- --------- ---------- ----------
current
 free      826292736       179    4616160  825573472
 alloc     211642160      3398      62284          -
 internal        448         2        224          -
cumulative
 alloc     212286912      5105      41584          -
peak
 alloc     211643792         -          -          -
Memory Errors:
  Links Repaired            0
  Padding Modified          0
  Nodes Removed             0
  Removal Failures          0
  Fatal Errors              0

Listing Memory Subcommands

You can access a list of available show memory subcommands.

ORACLE# show memory ?
application                   application memory usage statistics
l2                            layer 2 cache status
l3                            layer 3 cache status
usage                         memory usage statistics

Application Object Allocation and Use

Display information about application object allocations and usage by displaying counters associated with the show memory application command.

ORACLE# show memory application
14:06:47-153
Memory Statistics             -- Period -- -------- Lifetime --------
                    Active    High   Total      Total  PerMax    High
Processes               27      27       0         29      28      27
Messages                 3       4      12      23768     298      27
Services               133     133       0        142     139     134
Sockets                120     120       0        129     126     121
Buffers                338     338       0        350     325     338
Transactions             0       0       0         22      11      11
Timed Objects        16164   16164       0      16486   16218   16176
TOQ Entries             25      25    1893    4178055    1334      37
SIP Messages             0       0       0          0       0       0
MBC Messages             0       0       0          0       0       0
Pipe Messages           30      30       0         30      30      30
Message Blocks           0       0       0          0       0       0
Mutexes              18492   18493       0      43732   18660   18494
Mutex Locks             68      73  186539   1096480k  117493      78
Mutex Waits              0       3       3     117461     173       9
Mutex Timeouts           -       -       0          0       0       -
Rcr Mutex-Timeouts       -       -       0        499     166       -

The following table lists and defines the counters of the show memory application command.

show memory application Subcommand	Description
Processes	Process object statistics
Message	Message class and all derived classes statistics
Services	Service class and all derived classes statistics
Sockets	ServiceSocket class and all derived classes statistics
Buffers	Malloced buffers in various classes statistics
Transactions	All classes derived from the transactions template statistics
Timed Objects	TimedObject class and all derived classes statistics
TOQ Entries	Timed out queue (TOQEntry) class statistics
SIP Messages	Sip request (SipReq) and SIP response (SipResp) entry classes statistics
MBC Messages	MbcpMessage class statistics
Pipe Messages	Pipe message class statistics
Mutex Messages	Mutually exclusive class statistics

Worker Threads Deadlock Condition SNMP Trap

An SNMP trap is generated when a worker thread experiences a deadlock.

When a worker thread experiences a deadlock, the apMutexDeadLockTrap will be set. This trap contains the name of the thread on which the deadlock was encountered. Immediately following the above operation, the apMutexDeadLockClearTrap will be set. The operational setting of the trap and then immediate clearing of it functions more like a warning or alarm than the traditional SNMP trap functionality.

Memory Buffer

Display memory buffer statistics information by using the show buffers command.

ORACLE# show buffers
type        number
---------   ------
FREE    :    20990
DATA    :      1
HEADER  :      1
TOTAL   :    20992
number of mbufs: 20992
number of times failed to find space: 0
number of times waited for space: 0
number of times drained protocols for space: 0
__________________
CLUSTER POOL TABLE
__________________________________________________________________
size      clusters  free      usage     minsize   maxsize   empty
------------------------------------------------------------------
64        8192      8192      116       4         56        0
128       8192      8191      169342    128       128       0
256       2048      2047      35893     131       255       0
512       2048      2048      20357     258       512       0
1024      256       256       4         595       718       0
2048      256       256       7         1444      2048      0
------------------------------------------------------------------

The first column of the two column list shows the type of buffer, and the second column shows the number of buffers of that type. The first line of the list shows the number of buffers that are free; all subsequent lines show buffers of each type that are currently in use. Next you see four lines that describe the total number of buffers and how many times the system failed, waited, or had to empty a protocol to find space.

Following this information, the next section of the displayed information shows the cluster pool table. The size column lists the size of the clusters. The clusters column lists the total number of clusters of a certain size that have been allocated. The free column lists the number of available clusters of that size. The usage column lists the number of times that clusters have been allocated (and not the number of clusters currently in use).

Control and Maintenance Interfaces

Display all information concerning the system’s control and maintenance interfaces by using the show interfaces command.

ORACLE# show interfaces
lo (unit number 0):
     Flags: (0xc8049) UP LOOPBACK MULTICAST TRAILERS ARP RUNNING INET_UP INET6_UP
     Type: SOFTWARE_LOOPBACK
     inet: 127.0.0.1
     Netmask 0xff000000 Subnetmask 0xff000000
     inet6:  ::1 prefixlen 128
     Metric is 0
     Maximum Transfer Unit size is 1536
     0 packets received; 5262 packets sent
     0 multicast packets received
     0 multicast packets sent
     0 input errors; 0 output errors
     0 collisions; 0 dropped
     0 output queue drops
wancom (unit number 0):
     Flags: (0xe8043) UP BROADCAST MULTICAST ARP RUNNING INET_UP INET6_UP
     Type: ETHERNET_CSMACD
     inet6:  fe80::208:25ff:fe01:760%wancom0 scopeid 0x2 prefixlen 64
     inet: 172.30.55.127
     Broadcast address: 172.30.255.255
     Netmask 0xffff0000 Subnetmask 0xffff0000
     Ethernet address is 00:08:25:01:07:60
     Metric is 0
     Maximum Transfer Unit size is 1500
     0 octets received
     0 octets sent
     259331 unicast packets received
     2069 unicast packets sent
     0 non-unicast packets received
     5 non-unicast packets sent
     0 incoming packets discarded
     0 outgoing packets discarded
     0 incoming errors
     0 outgoing errors
     0 unknown protos
     0 collisions; 0 dropped
     0 output queue drops
f00 (media slot 0, port 0)
     Flags: Down
     Type: GIGABIT_ETHERNET
     Admin State: enabled
     Auto Negotiation: enabled
     Internet address: 10.10.0.10     Vlan: 0
     Broadcast Address: 10.10.255.255
     Netmask: 0xffff0000
     Gateway: 10.10.0.1
     Ethernet address is 00:08:25:01:07:64
     Metric is 0
     Maximum Transfer Unit size is 1500
     0 octets received
     0 octets sent
     0 packets received
     0 packets sent
     0 non-unicast packets received
     0 non-unicast packets sent
     0 unicast packets received
     0 unicast packets sent
     0 input discards
     0 input unknown protocols
     0 input errors
     0 output errors
     0 collisions; 0 dropped
f01 (media slot 1, port 0)
     Flags: Down
     Type: GIGABIT_ETHERNET
     Admin State: enabled
     Auto Negotiation: enabled
     Internet address: 10.10.0.11     Vlan: 0
     Broadcast Address: 10.10.255.255
     Netmask: 0xffff0000
     Gateway: 10.10.0.1
     Ethernet address is 00:08:25:01:07:6a
     Metric is 0
     Maximum Transfer Unit size is 1500
     0 octets received
     0 octets sent
     0 packets received
     0 packets sent
     0 non-unicast packets received
     0 non-unicast packets sent
     0 unicast packets received
     0 unicast packets sent
     0 input discards
     0 input unknown protocols
     0 input errors
     0 output errors
     0 collisions; 0 dropped

The following information is listed for each interface:

Internet address
broadcast address
netmask
subnet mask
Ethernet address
route metric
maximum transfer unit
number of octets sent and received
number of packets sent and received
number of input discards
number of unknown protocols
number of input and output errors
number of collisions
number of drops
flags (such as loopback, broadcast, promiscuous, ARP, running, and debug)

This command also displays information for loopback (internal) interfaces, which are logical interfaces used for internal communications.

You can also view key running statistics about the interfaces within a single screen by using the show interfaces [brief] command.

For example:

ORACLE# show interfaces brief
Slot Port Vlan Interface  IP                  Gateway          Admin Oper
Num  Num    ID Name       Address             Address          State State
---- ---- ---- ---------- ------------------- ---------------- ----- -----
lo (unit number 0):
     Flags: (0xc8049) UP LOOPBACK MULTICAST TRAILERS ARP RUNNING INET_UP INET6_U
P
     Type: SOFTWARE_LOOPBACK
     inet: 127.0.0.1
     Netmask 0xff000000 Subnetmask 0xff000000
     inet6:  ::1 prefixlen 128
     Metric is 0
     Maximum Transfer Unit size is 1536
     238 packets received; 238 packets sent
     0 multicast packets received
     0 multicast packets sent
     0 input errors; 0 output errors
     0 collisions; 0 dropped
     0 output queue drops
wancom (unit number 0):
     Flags: (0xe8043) UP BROADCAST MULTICAST ARP RUNNING INET_UP INET6_UP
     Type: ETHERNET_CSMACD
     inet6:  fe80::208:25ff:fe02:2280%wancom0 scopeid 0x2 prefixlen 64
     inet: 172.30.1.186
     Broadcast address: 172.30.255.255
     Netmask 0xffff0000 Subnetmask 0xffff0000
     Ethernet address is 00:08:25:02:22:80
     Metric is 0
     Maximum Transfer Unit size is 1500
     0 octets received
     0 octets sent
     638311 unicast packets received
     129 unicast packets sent
     0 non-unicast packets received
     5 non-unicast packets sent
     0 incoming packets discarded
     0 outgoing packets discarded
     0 incoming errors
     0 outgoing errors
     21 unknown protos
     0 collisions; 0 dropped
     0 output queue drops
sp (unit number 0):
     Flags: (0x68043) UP BROADCAST MULTICAST ARP RUNNING INET_UP
     Type: ETHERNET_CSMACD
     inet: 1.0.2.3
     Broadcast address: 1.0.2.255
     Netmask 0xff000000 Subnetmask 0xffffff00
     Ethernet address is 00:08:25:02:22:84
     Metric is 0
     Maximum Transfer Unit size is 1500
     0 octets received
     0 octets sent
     0 unicast packets received
     0 unicast packets sent
     0 non-unicast packets received
     0 non-unicast packets sent
     0 incoming packets discarded
     0 outgoing packets discarded
     0 incoming errors
     0 outgoing errors
     0 unknown protos
     0 collisions; 0 dropped
     0 output queue drops
   0    0    0 lefty      192.168.50.1/24     192.168.0.1      up    down
   1    0    0 righty     192.168.50.5/24     192.168.0.1      up    down
---------------------------------------------------------------------