AIX Useful commands

For my own references

Commands for memory

shows how much RAM does my machine has (as root)

bootinfo –r 

shows how much RAM does my machine have (as non root)

lsattr –E –l sys0 –a realmem

Simulates a system with various sizes of memory for performance testing of applications.

To set the memory size to 512 MB

rmss -c 512

To reset the memory size to the original one

rmss -r 

Commands for Disk / file system

Shows all disks

lsdev -Ccdisk

Gives info about the disk manufacture type

lscfg -vp -l hdisk0 | grep Machine

Displays disk size (even if no volume group is assigned)

bootinfo –s hdisk0

Displays information about a physical volume within a volume group (Display PP's used, location on disk, mount point)

lspv -p hdisk0

List of Filesystem items of jfs2 file system type.

lsfs -v jfs2  

List the parameter the filesystem of jfs2 file system type

lsfs -q -v jfs2

From here, we can see if e.g. /backup was or is a big_filesystem_enabled one. Important for the 2GB File limit.

Displays all exported volumes

showmount –e    

Show who's got my file systems mounted over IP !

showmount -a

Shows all mounted filesystems (nfs+local)

mount

Synchronize the device configuration database (ODM) with the logical volume manager information for rootvg

synclvodm -vP rootvg

Redfined VG definition in ODM

redefinevg rootvg

Reads logical volumes info from disk

lqueryvg -p hdisk0 –Avt  

Increases /var FS by about 100MB (each unit is 512 bytes)

chfs -a size=+200000 /var

Mounts all FS stated in /etc/filesystems

mount all

Unmounts a FS

umount /mnt/

Identifies processes using a file or file structure

fuser –c /dataVolumes/test

Releases a CD that will not unmount by sending SIGKILL signal to each local process. Must be root.

fuser -k /dev/cd0

Shows when the file was last created/modified/accessed

istat 

Reports input/output statistics for logical partitions, logical volumes and volume groups every 2 seconds

lvmstat –v hd2 2

Enable / Disable LVM statistic collection

lvmstat -e hd2

lvmstat -d hd2

Commands for Network

Displays en0 driver params

lsattr  -El  en0

Displays ent0 Hardware params

lsattr  -El  ent0

Display specific device specified by logical name ent0

lscfg  -v -l ent0

Display firmware device tree for the corresponding node to the ent0 device

lscfg -vp -lent0

Displays en0 driver params

ifconfig en0

Displays network interfaces setting

netstat  -i

Display all interface information - host:addr:mask:_rawname:nameserv:domain:gateway:cost:activedgd:type:start

for i in `lsdev | grep en | grep "Standard Ethernet" | awk '{print $1}'`; do echo Checking $i;mktcpip -S $i; done

Displays all IP oriented processes status

lssrc –g tcpip

Display any communication errors on ent2

entstat -drt ent2 |grep –i error

Resets all the statistics back to their initial values.

entstat -r

Shows a local arp cache

arp -a

Shows IP statistics

netstat  -ptcp

Shows UDP statistics

netstat  -pudp

Show network buffer cache statistic

netstat  -c

Show network statistic for each protocol

netstat  -s

Shows statistics recorded by the memory management routines

netstat -m

Trace en2 every 3 seconds

netstat -I en2 3

Ping with displaying the routing info

ping -R -c 1 myserver

Display routing info

netstat -rn

Shows the state of all configured interfaces

netstat -in

Display routing info with full hostnames

netstat -r

Trace all hobs (interconnections=routers) to the destination IP

traceroute 149.115.39.1

Monitors activity and reports statistics on network I/O and network-related CPU usage.

To start

netpmon -o netpmon.out

To Stop

trcstop

Displays a fully qualified domain name of a host

namerslv -s | grep domain | awk '{ print $2 }'

Shows the status of a remote host on the local network

rup myserver

Commands for Tape Device

Displays tape params

lsattr -El rmt0

all information about a tape drive

lscfg -vp -l rmt0

Shows all tapes lsdev -Cctape

Commands for NFS

Resets NFS stats without reboot

nfsstat  –z

To stop / start NFS services on a client

stopsrc –g NFS

startsrc –g NFS

Mount an NFS filesystem

mount hostname:/filesystem /mount-point

Exports a directory to NFS clients

mknfsexp -d /directory

Mounts a directory from an NFS server

mknfsmnt

Changes the configuration of the system to stop running NFS daemons

rmnfs 

Configures the system to run NFS

mknfs

Un-exports a filesystem

exportfs -u (filesystem)

Lists all exported filesystems

exportfs

Exports all directories listed in /etc/exports file

exportfs -a

Commands for Devices

Displays system type, firmware, etc driver params

lsattr  -El  sys0

Lists all system HW config (NVRAM)

lscfg –v

List all scsi devices

lsdev –Csscsi

List all pci devices

lsdev –Cspci

List all scsi adapters

lsparent –Ck scsi

List fiberchannel devices

lsdevfc

Configures devices

cfgmgr

This is similar to devfsadm in Solaris Specifies verbose output. The cfgmgr command writes information about what it is doing to standard output.

cfgmgr -v -l device –v

Name Specifies the named device to configure along with its children.

cfgmgr -v -l device

If you only turned on a disk tower at e.g. scsi2 cfgmgr -v -l scsi2 will only configure this with detailed output.

Commands for Graphic adapter

To check which graphic adapter is installed.

lsdisp

List all information about a adapter

lscfg -vp -l mga0

Commands for boot

Change the default bootlist

bootlist -m normal cd0  rmt0 hdisk0

Commands for Firmwares

Display the system firmware level and service processor

lsmcode -c

Display the adapter microcode levels for a RAID adapter scraid0

lsmcode -r -d scraid0

Display the microcode level for all supported devices

lsmcode -A

Commands for System Information

Get machine ID

/usr/bin/uname -m

Get platform type

/usr/bin/uname -M

Determines the system serial number

lsattr -El sys0 -a systemid | awk '{print $2}' | awk -F, '{print $2}'

Displays current AIX level

oslevel

Displays current AIX maintenance level

oslevel -r

List filesets at levels later than maintenance level !!!

oslevel -g

List all information about a processors

lscfg -vp -l proc0  (1,2,3)   

List all information about memory modules installed

lscfg -vp -l mem0 |pg

Determines the system Firmware level

lscfg –vp|grep ROM|grep -v CD  

Check last system dump status

sysdumpdev -L

Check system dump device settings

sysdumpdev -l

List contents of the package

lslpp -f Upd_Timna_DTM.obj

Shows create/modify/access file info

istat 

Display system boot log

alog -o -t boot | more

Identifies the users currently logged in

who

Shows recent 5 lines

last –5

Shows username ‘root’ login/logout record

last root

Displays local system statistics in interactive mode and records system statistics in recording mode

nmon

The nmon command provides the following views in interactive mode:

    * System resource view (using the r key)
    * Process view (using the t and u keys)
    * AIO processes view (using the A key)
    * Processor usage small view (using the c key)
    * Processor usage large view (using the C key)
    * Shared-processor logical partition view (using the p key)
    * NFS panel (using the N key)
    * Network interface view (using the n key)
    * WLM view (using the W key)
    * Disk busy map (using the o key)
    * Disk groups (using the g key)
    * ESS vpath statistics view (using the e key)
    * JFS view (using the j key)
    * Kernel statistics (using the k key)
    * Long term processor averages view (using the l key)
    * Large page analysis (using the L key)
    * Paging space (using the P key)
    * Volume group statistics (using the V key)
    * Disk statistics (using the D key)
    * Disk statistics with graph (using the d key)
    * Memory and paging statistics (using the m key)
    * Adapter I/O statistics (using the a key)
    * Shared Ethernet adapter statistics (using the O key)
    * Verbose checks OK/Warn/Danger view (using the v key)
    * Detailed Page Statistics (using the M key)
    * Fibre channel adapter statistics (using the ^ key)

Reports selected local and remote system statistics

topas

Monitors system 10 top processes with 2 seconds

monitor -top 10 -s 2

Displays disks activity every 2 seconds refresh interval

iostat 2

Displays the adapter and disk throughput report every 2 seconds

iostat –a 2

Monitors virtual memory statistics every 2 seconds

vmstat 2

Show all CPU’s activity on an SMP machine 2 times separated by 2 seconds.
Each row is for 1 logical processor.
'U' row is for system-wide Unused capacity.
Last line is for system-wide statistics.

sar –P ALL 2 2

Monitors real and virtual memory

svmon –i 2

Shows top 10 memory usage by process

ps auxw | sort –r +3 |head –10  

Shows top 10 CPU usage by process

ps auxw | sort –r +2 |head –10

Traces FS,LV,disks,files activity of a “find” command into a logfile (filemon.out). Must be preceded by a trcstop command.

filemon –O all –o filemon.out ; find / -name core ; trcstop

Traces CPU activity of a “find” command Several logfile are created. Must be preceded by a trcstop command.

tprof –x find / -name core ; trcstop

Shows the DNS server name and address

nslookup hostname

Trace CPU activity for next 30 seconds. Results in file sleep.tprof

tprof -ske -x "sleep 30"

Commands for paging.

Paging space settings.

lsps -a

Commands for user accounts

Environment setings - show user ulimit

env ulimit

Shows all user parameters (max .file size,etc)

lsuser –f root

Lists login users and their programs.

w

Commands to browse errlog

Generates a report of logged errors. Default command

errpt

All details

errpt -a

Moderate details

errpt -A

Eliminates double entries

errpt –D

Browse the errlog in detail for all errors within a timeframe

errpt -a  -s 0604090601  -e 0605090901

where date format is mmddhhmmyy Generates a report of resource names specified by the ResourceNameList variable (SYSPROC)

errpt -a  -N SYSPROC |more

Browse the errlog by the identifier

errpt -j 5DFED6F1

>h4>Misc Find all files containing "10.10.10.13" IP address

ksh
find / -type f|xargs grep "10.10.10.13" 2> /dev/null

Compresses the files while keeps the original

compress -c file > file.Z

Returns full path of program (Similar to 'which' command in Solaris / Linux. Also available in AIX)

whereis