mklvcopy LogicalVolumeName Numberofcopies
syncvg VolumeGroupName
#tar -cvf /dev/rmt0
chuser –a account=true username
Applied and commit state
In applied state if want to do any changes on installed software then we can do
But in commit the changes are not allowed to do. Once did installation.
A committed fileset update cannot be rejected.
Output from the installp -s command, which is used to get a list of applied software fileset updates and updates that are available to be either committed or rejected.
# lsvg vg name
VGDA: Volume Group Descriptor Area. It contains the information about volume group to which the physical volume belongs to. It also contains the information about physical partitions, logical partitions and logical volumes.
VGSA: Volume Group Status Area it contains the information about physical partition from all physical volumes of the same volume group. It contains the status of VG.
You can run the alt_disk_copy command to copy the current rootvg to an alternate disk. The following example shows how to clone the rootvg to hdisk1: alt_disk_copy -d hdisk1.]
# lslpp -L |grep -i (software_name)
# cplv -v <new vm name> <sourcel name>
A major number refers to a type of device. A device number is a major number, and a minor number specifies a particular device of that type or sometimes the operation mode of that device type.
Type one of the following: ifconfig -a or host Fully_Qualified_Host_Name. For example, host cyclop.austin.ibm.com.
To increase the size of the logical volume represented by the lv05 directory by three logical partitions, for example, type extendlv lv05 3.
#backup -f /dev/rmt0
255 any no. of vg can create.
#rmdev -l hdiskx
#chdev -l hdiskx -a max_trfer=0*80000
#mkdev -l hdiskx
Use the following command, where s partition_size sets the number of megabytes (MB) in each physical partition where the partition_size is expressed in units of MB from one through 1,02@(It’s one through 131,072 for AIX 5.3.)
mkvg -y name_of_volume_group -s partition_size list_of_hard_disks
The partition_size variable must be equal to a power of two (for example: one, two, four or eight). The default value for standard and big volume groups is the lowest value to remain within the limitation of 1,016 physical partitions per physical volume. The default value for scalable volume groups is the lowest value to accommodate 2,040 physical partitions per physical volume.
@permanent
@Temporary
@Informational
@Unknown.
1.H/W error
@S/W error
@Operator error
@Unknown error.
#mklv -y name_of_logical_volume name_of_volume_group number_of_partition
You use the chvg command to change the characteristics of a volume group.
Pre-defined database PdDv, PdAt
Customised database CuDv, CuAt
#restore -xvqf /dev/rmt0
odmcreate: To customize Odm
To remove ODM: odmdrop
odmdelete: To remove object from ODM
To see info in ODM odmget
To change the fields in object class odmchange
To add object to ODM odmadd
The path name of the 64-bit kernel is /usr/lib/boot/unix_64, and the path name of the multiprocessor versions of the 32-bit kernel is
/usr/lib/boot/unix_mp.
# ln -sf /usr/lib/boot/unix_mp /unix
# ln -sf /usr/lib/boot/unix_mp /usr/lib/boot/unix
# lslv -m hd5
# bosboot -ad /dev/ipldevice
# shutdown -Fr
# bootinfo -K (should now be 32)
#usr/lib/errdemon –s ____ [ size ]
First check the blv record using,
# bootlist –m normal –o
Remove the old blv record, using
# chpv –c hdisk2
# bootlist –m normal hdisk1
# bootlist –m normal hdisk2
Now unmirrorvg
# unmirrorvg rootvg hdisk2
# reducevg rootvg hdisk2
#lsvg –p rootvg
# lspv
# bootlist –m normal –o
You can display all logical volumes that are part of rootvg by typing the following command: #lsvg -l rootvg/
Unmount all filesystems in VG.
# umount /test (mount point name)
#varyoffvg datavg
#exportvg datavg0
Importvg with new name
# importvg –y newvg hdisk4
Available state and defined state. When device is in defined state it me it cannot use. Not in ready state. Run cfgmgr try to make available known in the system that device. Available state me that device is ready to use
# lsdev –Cc disk
It displays which disks are available
AIX logs messages as specified in /etc/syslog.conf file.
# errpt –a
# errpt –d H [H/W]
# errpt –d S [S/W]
The no command sets or displays current or next boot values for network tuning parameters
To truly change the kernel to 64-bit from 32-bit, the system must be at the AIX® 5.1 or AIX 5.2levels.
# bootinfo –y
It shows a kernel is either 32-bit or 64-bit.
To truly change the kernel to 64-bit from 32-bit, the system must be at the AIX® 5.1 or AIX 5.2levels.
# bootinfo –y
It shows a kernel is either 32-bit or 64-bit.
To change to a 64-bit kernel, enter the following commands:
# ln -sf /usr/lib/boot/unix_64 /unix
# ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix
# lslv -m hd5
# bosboot -ad /dev/ipldevice
# shutdown -Fr
JFS:
JFS is normal filesystem. We cannot create large files in JFS.
Files can be access dynamically.
Max file system size=1TB
Max file size=64GB
Inode size=128b
JFS2:-
Can create a large size filesystems.
Files can be access accordingly as required. (not randomly or sequentially)
Max files system size=4PB
Max file size=4PB
Inode size=512
# ls –li
# istat /etc/passwd
diag command
Either of the following two commands will display the network interfaces: lsdev -Cc if or ifconfig -a. To get information about one specific network interface, for eaxample tr0, run the command ifconfig tr0.
# installp –r –g fileset name
Normal vg -32 pv, 256 lv
# mkvg –y normvg –s 128 hdisk4
Big vg :- 128pv,512lv
# mkvg -B –y bigvg –s 128 hdisk9
Scalable vg: -1024pv, 4096 lv
# mkvg –S –y scalvg –s 512 hdisk1
Run the following command to display information about the logical volume #lv1: lslv lv1.
To activate the network interface tr0, run the command ifconfig tr0 up.
#mkvg –y datavg –s 128 hdisk1 (pv name)
#mklv -y datalv –t jfs2 datavg 1
#crfs –v jfs2 –d datalv –g datavg –a size=10M –m /fs1
PP size can be changed using a T-factor. If not then add a partitions in VG by adding one disk.
# chvg –t3 rootvg
Check disk size belong to vg , take two same size disk to mirror
# bootinfo –s hdisk2
#lsvg –p rootvg
Add one more disk of same size of already have disk having rootvg.
# extendvg rootvg hdisk2
# lsvg –p rootvg
Now mirror vg with background sync LV. It sync LVs in background with new LVs
# mirrorvg –s rootvg
Create a boot image
# bosboot –ad /dev/hdisk2
#bosboot –ad /dev/hdisk1
Add a blv
record of newly added disk, first check and then add.
# bootlist –m normal -o
#bootlist –m normal hdisk2 hdisk1
#chvg –B vgname /big vg
# chvg –S/-G vgname /scale vg
To display routing table information for an Internet interface, type netstat -r -f inet. To display interface information for an Internet interface, type netstat -i -f inet. To display statistics for each protocol, type netstat -s -f inet.