[Linux-cluster] EXT3 file system runs slow only right after it is mounted

[Lon Hohberger]

On Tue, 2008-02-05 at 08:26 -0600, Brad Filipek wrote:
> Hello,
>  
> I have a 2 node cluster connected via fibre to a SAN. This is an
> active/passive cluster and an EXT3 file system is mounted when the
> cluster services start on the active node. If we try to access data on
> this mount immediately after it is mounted, it takes an extremely long
> time. However, after about an hour, it runs extremely fast and is fine
> for good (until we un-mount and re-mount it, then it is slow again).
> So my question is, when you mount an ext3 partition (without any mount
> options), does it do something like scan the whole partition to see
> what is on the disk? This is the only thing I can think of that makes
> sense. The mount is 500GB in size. 

Did you specify force_fsck or something?

-- Lon