On Mon, Jun 14, 2010 at 1:35 PM, Brandon High <bh...@freaks.com> wrote: > How much memory do you have, and how big is the DDT? You can get the > DDT size with 'zdb -DD'. The total count is the sum of duplicate and > unique entries. Each entry uses ~ 250 bytes per entry, so the count > divided by 4 is a (very rough) estimate of the memory size of the DDT > in kilobytes.
One more thing: The default block size is 8k for zvols, which means that the DDT will grow much faster than for filesystem datasets. -B -- Brandon High : bh...@freaks.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
