re : logical volume help

[Vincent_5]

Hi Guys,
Can anyone advice how can I create a logical volume of size 1.2TB . Can I know the commands to create the logical volume.

Regards
Vincent

[VK2COT]

Hello,

You did not specify which version of HP-UX and
volume manager you run.

Yes, it is possible to create LV of size 1.2 TB.

Check famous HP document on LVM supported limits.

Lets assume you use LVM:

HP-UX 11.11 and 11.23, maximum LV size is 2 TB
HP-UX 11.31, maxumum LV is 16 TB

a) You can do it via SAM, for example
(I must say that for my 23 years in Unix
support, I seldom use graphical interfaces).

or

b) Check manuals on lvcreate(1).
Hint - options:

-l le_number
or
-L lv_size

There are number of issues you need to plan
when creating such a logical volume (backups,
PE size, its parameters, and so on)...

Even if you make a mistake, vgmodify can
help a lot if you use HP-UX 11.23 (with certain patches) or HP-UX 11.31.

Cheers,

VK2COT

[Yogesh M Puranik]

Hi Vincent,


First you have to check how much is you one PE size ,also strip size accordingly you plan out,

The command for create logical volume of 1.2 Tb is


# lvcreate -i -I -l -n


Here I - equal to 4096 if database is there on the sysatem.

i - should be in the range of 2,4...

-l -should be between 1 to 65k



cheers!!!!!!!!

Rgds
Yogesh

[Vincent_5]

Hi Guys,
Thanks for the info, sorry my mistake. The operating system is 11.31 and when I try to create a logical volume of around 1.2TB is give an error stirr output and it cannot create. I believe I have to extend the PE for logical volume as well. Pls guide me with the command to do it . Thanks and regards

Vincent

[Bill Hassell]

It would really help if you posted the error message...

But you are correct. The PE size must be larger than 4 MB because there is a limit to the number of PEs in a volume group. You must re-create the entire volume group with the -s option (I would use -s 32) to specify a larger extent size. Then you can create multi-terabyte volumes.