repartition

[Fadia Almarei]

dear all
i have a have a hard disk divided in to many partitions , one of these partitions reach 100% and i have no free space on the hard disk and i can not add new one ,i want to reduce the size of one of the partitions and add space to the previous partition without loosing the data on the second partition , what should i do ,is there is solution
BR,
fadia

[Franky_1]

Hi,

to reduce FS

fsadm â d â D â e â E
fsadm â F vxfs â b
lvreduce â L /dev/vgxx/lvolx

to extend FS

lvextend â L /dev/vgxx/lvolx
fsadm â F vxfs â b

[Fadia Almarei]

thanks franky
but please retype the command again i can not understand them

[Mohanasundaram_1]

Hi Fadia,

Do you have OnineJFS installed on your system?

Otherwise reducing an existing lvol may result in a data loss.

Cheers,
Mohan

[Fadia Almarei]

how can i check if i have OnineJFS on my system

[YoungHwan, Ko]

The esaist way is using Online JFS.
But it is not recommanded reduce file system.
It may cause data false.
If you have Online JFS, you can use lvreduce and lvextend without umount file system.
If you didn't have Online JFS, backup file system which is intend to reduce.
After Backup lvremove to remove file system.
And then recreate file system appropriate size.
After remake file system recover data.
And then umount file system, which you intend to extend file system.
And lvextend file system, mount...

[YoungHwan, Ko]

Check method if your system have OnlineJfs

# swlist

If output is below

B3929CA B.11.11 HP OnLineJFS

you can use Onlie JFS

[Fadia Almarei]

no i have not , but i want from you the steps in details, about removing the logical volume is it needed to umount it before deleting or not , please in details