Access to UFS stuck during snapshot.

[Kris Kennaway]

On Wed, May 24, 2006 at 02:17:51PM +0800, Kent Ho wrote:
> Hi,
> 
> I having problems accessing file system during snapshot runs.  snapshot 
> takes approximately 10 to 20 mins to run.
> 
> During that time access to files in the file system are blocked until 
> the snapshot has completed.  Lot of processes was stuck and piles up on 
> the fs.
> 
> This fs stores mailboxes and it's accessed 24/7.  This is similar to 
> what described in this thread.
> 
> http://www.freebsd.org/cgi/getmsg.cgi?fetch=14968+0+/usr/local/www/db/text/2006/freebsd-fs/20060312.freebsd-fs
> 
> Has this been improved or fixed in recent releases, I see a bunch of 
> fixes in march?  any possible work around?  any alternatives or 
> recommendations?  Looking for high availability fs with snapshots.

It's by design.

Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-fs/attachments/20060524/bf2459dd/attachment.pgp