[Ocfs2-users] resize ocfs LUN

[Joseph Qi]

Hi,
It depends on the user scenario. I suggest choose the approximate
cluster size with the most files. And you should also consider the
volume size support, for example, 4K cluster will only support 16TB
volume, while 1M cluster can support 4PB.
BTW, no matter 4kb or 20kb files, they are always occupy 128kb in your
ocfs2 volume. If file size is less than about 3.8kb, it will use inline
data feature which stores data together with inode and won't allocate
new data cluster.

Thanks,
Joseph

On 2016/5/16 15:52, Umarzuki Mochlis wrote:
> What is the best way for me to reformat my ocfs LUN because I got
> complains that 4kb files become 0kb and 20kb files become 128kb. The
> partition when reaching 80% usage, it will become not writable
> anymore. It is a LVM2 logical volume.
> 
> Format command used:
> 
> sudo mkfs.ocfs2 -b 4K -C 128K -L "Web Cluster" /dev/webvg/weblv
> 
> Thanks for any advise
> 
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