On Sat, May 27, 2006 at 08:29:05AM +1000, grant beattie wrote: > On Fri, May 26, 2006 at 10:33:34AM -0700, Eric Schrock wrote: > > > RAID-Z is single-fault tolerant. If if you take out two disks, then you > > no longer have the required redundancy to maintain your data. Build 42 > > should contain double-parity RAID-Z, which will allow you to sustain two > > simulataneous disk failures without dataloss. > > Eric, > > is raidz double parity optional or mandatory?
optional. There will be a new vdev type, 'raidz2', which will be double parity. Existing raid-z vdevs will become 'raidz1', and 'raidz' will be kept as an alias for 'raidz1' for backwards compatibility. - 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
