tom at samplonius.org
Wed Jan 17 23:04:33 UTC 2007
----- Mark Saad <msaad at datapipe.com> wrote:
> Ivan Voras wrote:
> > Dmitriy Kirhlarov wrote:
> >> On Wed, Jan 17, 2007 at 03:20:32PM +0100, Richard Verwayen wrote:
> >>> Oh, should I have mentioned that it is a shared SCSI-Storage in
> >> You can use gmirror(8) with ggated(8).
> > I think his problem is that you can't have two machines RW mounting
> > same device (doesn't matter if it's FC, ggate or other...). So when
> > machine fails, the other must mount the file system and THEN start
> > daemons...
> This is kind of a side topic but does anyone know of a on disk
> file system for FreeBSD; like OCFS2 or GFS . Both which would allow
> to have more then one box attached read / write to the same scsi or fc
> storage array ?
I don't believe there are any.
Additionally, I don't believe any of the clustered file systems would be usable for a database backend. Because the application does not know that another instance is also updating, so you would have to start only one instance at a time. So the locking overhead of a clustered filesystem isn't worth it for databases.
> Mark Saad
> msaad at datapipe.com
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