[Ocfs-users] Expanding (growing) Filesystemss

[Sunil Mushran]

tuneocfs is fairly safe. It does not do anything fancy.

If extending, it ensures that the new space can be fully accounted for
by the bitmap. (For e.g., with a 4k blocksize, ocfs can address volumes
upto 32G, with 128K upto 1TB, etc). If so, it stamps the new size in the
header.

If truncating, it ensures that the new size is not smaller than the
largest used block. Again, if ok, it just stamps the new size on the
header.

On Fri, 2004-06-18 at 08:36, Kendall, Kim wrote:
> We want to expand the LUN's on our SAN. I have expanded the LUN's,
> rebooted the hosts, now want the hosts to mount up the larger LUN, but
> they still see the original size. 
> 
> How risky is it to use tuneocfs to grow the filesystem after the
> expanded LUN is presented to the host? I was unable to find anything
> outside the man page for it.
> 
> 
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