On Sun, Dec 17, 2006 at 07:57:20PM -0600, Al Hopper wrote: > > The section entitled "Does ZFS work with SAN-attached devices?" does not > make it clear the (some would say) dire effects of not having pool > redundancy. I think that FAQ should clearly spell out the downside; i.e., > where ZFS will "say" (Sorry Charlie) "pool is corrupt". >
This is not entirely true, thanks to ditto blocks. All metadata is written multiple times (3 times for pool metadata) regardless of the entirely device layout. We did this precisely because ZFS has a tree-based layout - losing an entire pool due to a single corrupt block is not acceptable. If you have a corruption in three distinct blocks across different devices, then you have some seriously busted hardware. I would be surprised if any filesystem were able to run sensibly in such an environment. - Eric -- Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
