AIX Device Commands

root's picture

To configure devices and installs device software in system:

root@gz~# cfgmgr

To configure the components connected to the vscsi0 interface:

root@gz~# cfgmgr -l vscsi0

To display config, diagnostics and vital product definition info:

root@gz~# lscfg

Display info about device mem0:

root@gz~# lscfg -l mem0

Display info about all Ethernet cards:

root@gz~# lscfg -l ent*

Display vpd:

root@gz~# lscfg -v

Display vpd of hdisk0:

root@gz~# lscfg -v -l hdisk0

How to display the PVID of a disk:

root@gz~# lquerypv -H /dev/hdisk0

To change device rmt0 from defined state to available state:

root@gz~# mkdev -l rmt0

To lists all supported devices:

root@gz~# lsdev -P

To list all supported disks:

root@gz~# lsdev -P -c disk

To display supported class:

root@gz~# lsdev -P -r class

To display all sub class:

root@gz~# lsdev -P -r subclass

To lists all configured devices:

root@gz~# lsdev -C

To display the properties of mem0:

root@gz~# lsdev -C -l mem0

To change default maxuproc value to 100:

root@gz~# chdev -l sys0 -a maxuproc=100

To change aio0 parameters (below AIX 6.1):

root@gz~# chdev -l aio0 -P -a minservers=150 -a maxservers=150

Note: modifications to aio0 require restart. If you try to modify them on the fly (without -P), you will get the following error:

root@gz~# chdev -l aio0 -a minservers=150 -a maxservers=150
Method error (/usr/lib/methods/chgaio):
        0514-064 Cannot perform the requested function because the
                 AIO kernel extension is permanent and cannot be unloaded.

To change the block size to 512:

root@gz~# chdev -l rmt0 -a blocksize=512

To avoid tape retension:

root@gz~# chdev -l rmt0 -a ret=no

To remove the device rmt0:

root@gz~# rmdev -l rmt0

To remove the device totally from database:

root@gz~# rmdev -d -l rmt0
Note: If an hdisk is removed with the rmdev -l hdiskx -d command, then the hdisk name is available for use by another disk.

To change the state of the device stopped:

root@gz~# rmdev -l rmt0 -S

To display possible parent devices which accept rs232 devices:

root@gz~# lsparent -C -k rs232

To display parent devices which accept child device hdisk0:

root@gz~# lsparent -C -l hdisk0

To see the default values of the device rmt0:

root@gz~# lsattr -Dl rmt0

To see the current values of the device rmt0:

root@gz~# lsattr -El rmt0

To see all possible values of the login attribute of tty0:

root@gz~# lsattr -El tty0 -a login -R

To list all possible connection scsi0 can accept:

root@gz~# lsconn -p scsi0

To list the available major numbers:

root@gz~# lvlstmajor

How to create null device with major (2) and minor (2) nos. (c - char device):

root@gz~# mknod /dev/null c 2 2

How to check the sdd disk reservation:

root@gz~# lquerypr -Vh /dev/vpath0

How to check on which drawers you have the pci devices:

root@gz~# lsslot -c pci
# Slot                   Description                              Device(s)
U5602.003.9480047-P1-C8  PCI-E capable, Rev 1 slot with 8x lanes  fcs0 fcs1 
U5602.003.9480047-P1-C9  PCI-E capable, Rev 1 slot with 8x lanes  fcs2 fcs5

Thou shalt not steal!

If you want to use this information on your own website, please remember: by doing copy/paste entirely it is always stealing and you should be ashamed of yourself! Have at least the decency to create your own text and comments and run the commands on your own servers and provide your output, not what I did!

Or at least link back to this website.

Recent content

root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root
root