HAMMER is really good. ive been using it for about a year now and never got any corruption. the reblocker/pruner was initially an IO hog for about 5 minutes at

HAMMER is really good. ive been using it for about a year now and never got any corruption. the reblocker/pruner was initially an IO hog for about 5 minutes at 3am, but that has been fixed. Its totally smooth now. We use Solaris + ZFS + time slider on a storage server at work, and quite frankly, HAMMER has, even at its infancy worked better for me. HAMMER can now extend the file system on the fly, and I expect a file system shrink feature to be ready by the next release. From reading the mailing list it shouldnt be very difficult thing to do, thanks to the reblocker.