[Ocfs2-users] enabling discontig-bg

[srinivas eeda]

On 10/14/2011 12:23 PM, Florin Andrei wrote:
> We upgraded from 1.4 to 1.6 to avoid some FS fragmentation issues (the
> "No space left on device" error, but the FS is not full yet). But it
> looks like we really need to enable discontig-bg to take advantage of
> that. Our file systems have these attributes:
>
> Compat: backup-super
> Incompat: None
> RO Compat: None
>
> Do we really need to enable discontig-bg in order to avoid the
> fragmentation problem?
Yes, you won't avoid fragmentation by enabling this feature. It now 
allows ocfs2 filesystem system files to grow in smaller contiguous chunks.
> If so, do I need to unmount the FS on all nodes in order to enable the
> feature? (offline operation)
yes