>>>>> "Jeremy" == Jeremy Allison <jra@xxxxxxxxx> writes: Jeremy> On Thu, Jul 22, 2010 at 12:58:50PM -0400, Trond Myklebust wrote: >> >> That would make it impossible to export the filesystem with NFSv2 and >> v3. They do rely on ctime checking for certain operations (e.g. deciding >> when to invalidate access and acl caches). NFSv4 needs this too if the >> filesystem has no dedicated change attribute. >> >> Still, I suppose the market for exporting the same filesystem with both >> NFS and Samba is limited... Jeremy> Ask NetApp about that :-). They have built a rather large Jeremy> business on just that fact :-). And it does work, as long as you also go with either unix or windows semantics for the security and permissions bits. If you try to use the mixed-mode, you're in for a world of hurt. Oh yeah, Netapp still uses dump/restore for it's backups. :] Though whether it's still dependent on the optimization of ctime being used to know whether to just dump the inode only or not, I can't say. John -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
