On Wed, Apr 14, 2010 at 09:04:50PM -0500, Paul Archer wrote: > I realize that I did things in the wrong order. I should have removed the > oldest snapshot first, on to the newest, and then removed the data in the > FS itself.
For the problem in question, this is irrelevant. As discussed in the rest of the thread, you'll hit this when doing anyting that requires updating the ref counts on a large number of DDT entries. The only way snapshot order can really make a big difference is if you arrange for it to do so in advance. If you know you have a large amount of data to delete from a filesystem: - snapshot at the start - start deleting - snapshot fast and frequently during the deletion - let the snapshots go, later, at a controlled pace, to limit the rate of actual block frees. -- Dan.
pgp9jB6BpV8mc.pgp
Description: PGP signature
_______________________________________________ zfs-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
