On Mon, Apr 23, 2007 at 08:49:35AM -0700, Ivan Wang wrote: > > Now this is scary, looking from the descriptions, it is possible that > we might lose data in zfs, and/or resulted in a corrupted zpool that > panics the kernel, if during the write operation, zfs loses connection > to underlying hardwares? (for example a power failure?)
No, you will not lose data. There is a chance we will panic if you fail a write in an unreplicated pool, but you will not lose data as a result. > But I've rarely seen that since we got UFS w/ logging in Solaris 7 or > something. Even with UFS, there is always fsck allowing us to bring > system back to a consistent state for recovering from previous backup. > > Is ZFS really supposed to be more reliable than UFS w/ logging, for > example, in single disk, root file system scenario? Yes. The failure to cope with a failed write in an unreplicated pool affects the availability of the system (because we panic), but not the underlying reliability of the filesystem. - 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
