They took forever ... and then they bombed out due to lack of memory. Not lack of physical memory, but lack of ability to address it as the UFS2 tools, like fs

They took forever ... and then they bombed out due to lack of memory. Not lack of physical memory, but lack of ability to address it as the UFS2 tools, like fsck, were not written to handle billions of inodes ... We really can't thank Kirk M.[1] enough - he wrote custom patches to ufs and fsck just for our (dirty) filesystems and, as I mention in the article, eventually gave us the push to migrate to ZFS. [1] https://en.wikipedia.org/wiki/Marshall_Kirk_McKusick https://en.wikipedia.org/wiki/Marshall_Kirk_McKusick