AIX

Good afternoon all,
I'll probably confuse everyone as I'm a Windows guy dealing with AIX 6.1 and can't quite figure out how to do something. I have a P520 server running 2 LPARs and we have an IVM (not HMC).Within the IVM under Virtual Storage Management, when I check the Physical Volumes, I have a HDisk5 not assigned to anything (431GB). Now, for my AIX 6.1 partition I have 2 volume groups (rootvg, datavg) and would like to use HDisk5 as a backupvg. And what I would like to see as the end result is that when I do a df -g to have it show as /dev/backup_lv where I would have 431GB that I can be used for backup files.

As always, thanks in advance!

From what I remember of other systems:

pvcreate (pvdisplay to show) to make a physical volume
vgcreate (vgdisaply to show) to make a volume group
lvcreate (lvdisplay to show) to make a logical volume

Do those commands exist for you?

Code:

#mkvg -y backupvg hdisk5

Makes a volume group out of one or more physical volumes

Code:

#mkvg -y backupvg -s 8 hdisk5

then you can create LV on top of the volumegroup

Thanks for that! The only part I'm unclear on is... won't the -s 8 set the size to 128GB? (From the man pages) Would I then just expand the fs?

Thanks as always!

No, it wont. "-s 8" will set that each physical partition will have 8Mb, so if you will decide to extend fs you will do it by minimum of 8Mb.

I would suggest you to create scalable volume group. Here are differences between Normal, Big and Scalable VG

Create VG

Code:

smit mkvg

or

Code:

mkvg -y backupvg -S hdisk5

Then create LV

Code:

smit mklv

or

Code:

mklv -y backup_lv -t jfs2 backupvg number_of_pp_you_want_to_give_this_LV

Then create FS on already existing jfs2 LV

Code:

smit crfs

or

Code:

crfs -v jfs2 -g backupvg -m your_mount_point -a logname=INLINE -d backup_lv

and mount your newly created FS

Code:

 mount your_mount_point

But there are more options for each command, like if you would like to varryon vg automatically after system reboot or if you would like to mount FS after system restarts. If I were you I would use smit which is very easy to use, and you dont have to look for flags in manual pages.