LVM information crash with ODM

It is a nightmare. I found that one of the AIX server cannot build a mirror of the rootvg. After investigation, it even failed to extend a new disk (PV) to rootvg. Then I tried "odmget" command and found something strange: ODM indicated that there were 2 PVs in rootvg already.

Therefore, the situation is the ODM and LVM records are not consistent. What should I do? Luckily, I got a wonderful command - synclvodm

I ran "synclvodm -v rootvg", that's all. The new PV was added to rootvg and I could just happily build the mirror (smitty mirrorvg). Bravo !!!!

Ref: Man page of synclvodm

How to add a swap file in Solaris

1. # mkfile 10m /tmp2/swapfile
2. # swap -a /tmp2/swapfile
3. # swap -l

   • swapfile             dev  swaplo blocks   free
     /dev/dsk/c0d0s1     102,1       8 303400 303400
     /dev/dsk/c0d1s6     102,70      8  21160  21160
     /tmp2/swapfile        -        8  20472  20472
       

4. (Optional, if need to make the change permanent)
   1. Edit /etc/vfstab

              /tmp2/swapfile  -       -       swap    -       no      -
        

   2. reboot

ODF Add-in for Microsoft Word

Finally, we can read and save document as open document format from Microsoft Word. It means that everyone can use an open, unique standard format with different programs.

Ref: http://odf-converter.sourceforge.net/

AIX LVM Quick Refrence

Quick reference only. Assumed the reader is familiar with the concept of AIX LVM

Action	smitty command	Command line	Remarks
Create a VG	smitty mkvg	mkvg -y '' -s '128'
Create a LV	smitty mklv	mklv -t jfs -y ''	jfs2 is preferred
Create a filesystem	smitty crfs	crfs -v jfs -a bf=true -d -m -A	jfs2 is preferred
Resize FS	smitty chfs	chfs -a size=+
Extend a VG	smitty extendvg	extendvg ...
Reduce a VG	smitty reducevg	reducevg
Move PV data	smitty migratepv	migratepv -l
Online a vg	smitty varyonvg	varyonvg
Offline a vg	smitty varyoffvg	varyoffvg
Export a VG	smitty exportvg	exportvg
Import a VG	smitty importvg	importvg -y
Remove a filesystem	smitty rmfs	Not recommend to use CLI
Make a lvcopy	smitty mklvcopy		Mirror a LV
Remove a lvcopy	smitty rmlvcopy		Remove the mirror of a LV
Split a lvcopy	No smitty	splitlvcopy -y 1
Mirror a vg	smitty mirrorvg	mirrorvg
Unmirror a vg	smitty unmirrorvg	Not recommend to use CLI

The World is Flat

Recently I am reading the book "The World is Flat". I am shocked by the changes of the 21 century.

Nowadays information technology shortens the distance between people. Anybody who know how to use the IT skill can join the platform and interact with others. This is so called the 'Flat World'. The author mentioned some companies start outsourcing some jobs or tasks to India, China, or other developing countries. This would reduce the cost as well as improve the efficiency. Because of a task of my company, I just communicated with a India support and completed the task. Apart from the language issue, there are no difference whether I was working with a local or a remote support. Perhaps you will find all the back end support will be in Indea, China, or somewhere you cannot imagine. Just as what the author said, the world is becoming flat.

Nevertheless, language is still a issue for me. It is not an easy task for me to speak in English with the Indian. Perhaps I still have to improve my English.

Ref: The book in Amazon