topic Re: can we reallocate space that alrady allocated logical volume in Operating System - Linux

can we reallocate space that alrady allocated logical volume

Techsystemquery — Thu, 16 Sep 2010 12:46:52 GMT

I have extended the logical volume online using lvextend coomand.

By mistake it happen now can reallocate that space to some other logical volume without datalose ?

Re: can we reallocate space that alrady allocated logical volume

Jean-Yves Picard — Thu, 16 Sep 2010 12:59:03 GMT

Hello,

depending on OS.
fsck -f /dev/... to compact filespace.

then lvreduce

Jean-Yves Picard

Re: can we reallocate space that alrady allocated logical volume

Ivan Ferreira — Thu, 16 Sep 2010 13:08:04 GMT

If you did not extend the file system, you can use lvreduce again. You should be carefull to not reduce more than the filesystem size.

See also:

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1107877

Re: can we reallocate space that alrady allocated logical volume

Techsystemquery — Thu, 16 Sep 2010 14:59:04 GMT

What I need is

Since I hve wrongly extended storage to one lvm.

I have extended /dev/vgoracle/lvl10 by 80GB

Can I have that that storage(80GB) allocated to another lvm (say /dev/vgoracle/lvl11 ?

Re: can we reallocate space that alrady allocated logical volume

Tim Nelson — Thu, 16 Sep 2010 18:00:31 GMT

As mentioned previously,

if you have yet to extend the filesystem you will need to reduce lvl10 first, then extend lvl11.

Be sure to back up your data before you reduce, just in case.