On Wed, May 25, 2005 at 03:38:22PM -0700, David Kewley wrote:
Can anyone here provide experience reports or pointers to reports,
regarding the safety of Linux's write support for Sun UFS? It is
marked as experimental and dangerous, but it appears to have been
around since 1998. I'm wondering whether this might be one of those
things that works fine but still carries old labels.
It doesn't get any real attention upstream, so I've no particular
belief that its gotten any more stable than it ever was (wrt writes).
For this reason, the write support is disabled in Fedora.
I have several external RAID arrays that up to now have been attached
Sun boxes and formatted with UFS filesystems. I will be attaching
these arrays now to a RHEL 4 host.
UFS is also unavailable in RHEL4.
If I can safely get away with it, I'd prefer to keep writing to
the UFS volumes
since we're talking about several TB of data.
I certainly wouldn't trust it with data I wanted to keep.
then I will need to transfer the data to a Linux filesystem with
spare TB of space, reformat the external filesystems, and move the data
back (or variations on that plan). These are filesystems that several
people use for daily work, so I'd rather avoid the copy time if
This is unfortunatly, probably the best way forward.