AIX Interview Questions- AIX ODM interview questions

AIX Interview Questions- AIX ODM interview questions What is ODM? ODM is a repositry where OS keep information about devices, VPD, smitmenu, tcp/ip, errorlog and nim also

Whare are the ODM directories? /etc/objrepos /usr/objrepos /usr/share/objrepos

What will you do when ODM in non rootvg volume group corrupted?

exprot the vg then import the vg

What is the ODM contains

Object Data Manager ODM contains database of OS except user, filesystem and printer information

How to Fix if a VG is not Available in ODM?

smit importvg

What is ODMGET?

Command to get information from ODM

what is path?

Which is the ODM command to list the ODM object that stores the physical volume identifier? [1 mark]

odmget  -q  name=hdisk0 CuAt

What are the basic components of ODM and in which format data is stored in ODM

Components are uniquetype, attribute, deflt and values          Data is stored in binary format

Which is the environment variable used by all the ODM commands And that is set in file /etc/environment. What is its default value

ODMDIR and default value is /etc/objrepos

Which three types of information are not managed by ODM?

Filesystem information, User/Security information, Queues and Queue devices

Which repositories stores the ODM object classes?

/etc/objrepos, /usr/lib/objrepos and /usr/share/lib/objrepos

Which is the ODM object class used by cfgmgr to determine the correct sequence when configuring devices

Config_Rules

ODM - where it resides, how to modify,list,etc.,

ODM resides in /etc/objrepos , /usr/lib/objrepos and /usr/share/lib/objrepos.  To modify ODM use the following sequence :  # odmget  -q"uniquetype=tape/scsi/8mm and attribute=block_size" PdAt > file  # vi file à edit the corresponding attribute.  # odmdelete -o PdAt -q"uniquetype=tape/scsi/8mm and attribute=block_size"  # odmadd file  To list contents of ODM use lsdev command.

How will you delete an entry from ODM? Use odmdelete command # odmdelete -o PdAt -q"uniquetype=tape/scsi/8mm and attribute=block_size"