Aix Interview Questions And Answers For Freshers

Top IBM AIX Interview Questions and answers: Here, we highlight some common questions you might be asked during a job interview for IBM related positions. All the best for your interview Preparation.

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31. How To Enable & Disable Quorum?

Ans:

  • # chvg –vy pv_name
  • # chvg –vn pv_name
  • #chvg –Qn vgname
  • #chvg –Qs vgname
  • 32. What Are The Types Of Error?

    Ans:

    33. What Are The Error Levels Severity?

    Ans:

    34. What Is The Command To See The Error Log?

    Ans:

  • # errpt –a
  • # errpt –d H [H/W]
  • # errpt –d S [S/W]
  • 35. What Is The Command To Clear The Error Log?

    Ans:

    36. What Is The Command To Increase The Size Of Error Log When It Is Full?

    Ans:

  • #usr/lib/errdemon –s ____ [ size ]
  • 37. What Is The Command To Start , Stop, Restart And List A Demon?

    Ans:

  • # startsrc –g [ Demon name ]
  • # stopsrc [Daemon name ]
  • # refresh [Demon name ]
  • # lssrc –al
  • 38. When Does an Error Daemon Start In Boot Process?

    Ans:

    39. Which File That Error Daemon Stay?

    Ans:

    40. Two States Of Device Availability And Explain Them?

    Ans:

    Available state and defined state. When a device is in a defined state it means it cannot be used. Not in a ready state. Run cfgmgr try to make it available in the system that device. Available state means that device is ready to use

    It displays which disks are available

    41. How Will You Check Whether A Device Is Installed Or Not?

    Ans:

    42. How To Change A 64 Bit Kernel To 32 Bit Kernel?

    Ans:

  • Modify the /usr/lib/boot/unix directory and the /unix directory to be a symbolic link to the binary for the desired kernel.
  • Run the bosboot command to write a new system boot .
  • Reboot the system.
  • 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)
  • 43. How To Change A 32 Bit Kernel To 64 Bit Kernel?

    Ans:

    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
  • 44. How Many Vgs Can Be Created In A Lvm?

    Ans:

    255 any no. of vg can create.

    45. Types Of Vg & Explain About Them?

    Ans:

    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
  • 46. How To Convert A Normal Vg To Big & Scalable Vg And Also Big To Scalable Vg?

    Ans:

  • #chvg –B vgname /big vg
  • # chvg –S/-G vgname /scale vg
  • 47. What Is Vgda, Vgsa?

    Ans:

    VGDA: Volume Group Descriptor Area. It contains the information about the 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 contains the information about physical partitions from all physical volumes of the same volume group. It contains the status of VG.

    48. What Are The Two States Of Installation?

    Ans:

    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.
  • 49. How Will You Reject A Committed Fileset?

    Ans:

  • # installp –r –g fileset name
  • 50. How Will You Check Whether Software Is Installed Or Not?

    Ans:

  • # lslpp -L |grep -i (software_name)
  • aix interview questions and answers for freshers

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