Re: [9fans] a little experiment on venti deduplication performance

[Bakul Shah via 9fans]

One idea is to try to grok zfs send’s serial format, which is a raw block level stream and try to wed it to venti. And may add a zfsmount command to serve readonly zfs snapshots directly from venti?  On Jan 15, 2026, at 11:21 AM, wb.kl...@gmail.com wrote:  UFS and ext2 systems are supported well by vbackup, but only rudimentarily by vac. For me, the problem began, when I started to use ZFS on FreeBSD.  A vbackup is essentially just a single sparse file containing all used blocks on the disk. This cannot apply to a zfs system. In vac/plan9port, symbolic links are saved nominally, but not the string telling where the link goes. This would be fixable, causing problems for vac files when used on Plan9. And, in the Unix world, there are more unsupported features, such as ACLs and file flags(noschg eg.). Some of them are not supported by tar either. The nearest thing to what I want, was presented at the last IWP9, which maps the unsupported features from 9p2000.L to 9P2000. 9fans / 9fans / see discussions + participants + delivery options Permalink