> Plan is to replace disks with new and larger disks. > > So will pool get bigger just by replasing all 4 disks one-by-one ? > And if it will get larger how this should be done , fail disks one-by-one .. > or ??? > > Or is data backup and pool recreation only way to get bigger pool >
There is another possibility. If you can retain the original smaller disks in the pool then you have the option of adding the additional 4 larger disks as another raidz set. In that case the command would be something like... zpool add yourpool raidz disk1 disk2 disk3 disk4 The pool would then stripe across the 2 raidz sets with more I/O to the larger raidz. In this case your new space would be immediately available. Since the 4 new disks are larger you could alternatively add a 3 disk raidz to the pool and add the 4th new disk as a spare. That way I think you could survive 2 disk failures in either pool as long as the 2nd failure didn't occur during resilver operation from the first failure. Regards, Vic _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss