How to reduce LVM to create another LVM

UNIX HP-UX
1

Hi,

I'm new to HP-UX.
I have LVM on /var with 92Gig. I would like to reduce it to create another LVM for Oracle client with 800 meg or so. How to do it. I'm running 11.iv3

Thanks

2

I use LVM all the time - not on HP-UX - but a simple google search found me this:

LVM and VxVM Command Equivalents

At least it shows the HP-UX LVM commands to do what you want to do.

Generally shrink the filesystem size (if required) then reduce the LV size.

3

From your wording I gather you do have a file system inside that logical volume. Does your system have OnlineJFS? Then you could shrink the filesystem first with fsadm -b, followed by lvreduce.

4

As mentionned by Scrutinizer... First would be to know if you have Online JFS:

ant:/home/vbe $ swlist |grep JFS   
  B3929CA                               B.11.11.03.03  HP OnLineJFS

Because if you dont reducing /var means going single user...

5

Sorry guys, i was away. Yes we do have online JFS. And i was able to use fsadm -b then apply lvreduce.

Thanks