[Ocfs2-users] block size - cluster size

[Sunil Mushran]

Arkadiy Kulev wrote:
> Hello ocfs2-users,
>
>   I have 2 questions:
>
>   1. I forgot the block size and cluster size that I chose
>   during formatting of the drive. Is there any way I can find it out
>   afterwards?
>
>   
# debugfs.ocfs2 -R "stats" /dev/sdX
Look for Cluster Size bits and Block Size bits.
9 = 512
10 = 1K
...
16 = 4K
...
20 = 1M
>   2. And what's up with the block size-cluster size anyways? I could
>   find any in-depth information regarding those parametres. what is
>   it?
>   
Refer to the FAQ. For more, look at the on-disk-format support guide.

>   When I tried using the default settings my disk space was being used
>   twice as normal.
>   
>   I am using a RAID 5 shared storage device (iSCSI) with the stripe
>   size of 64KB - what should I choose?
>
>