zfsu on HackerShow

Infrastructure

zfs backup

SHOW HN2015

ZFS utils to mirror snapshots and apply retention

Shown by binwiederhier on Nov 29, 2015. Click the card to turn it over.

28points

11comments

#965of 2,565 in 2015

Top 38%of 2015 by points

How HN took it

QuietFewer than 5 comments about the project

0 positive, 1 neutral or asking, 0 mixed, 3 critical, out of 4 comments about the project.

Idea: 0 for, 2 againstDesign: 0 for, 1 against

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

ZFS backup is too system specific for a generic tool
From 3 comments
- I don't have any suggestions, and I don't suspect that are anyone else will either. Why? Because ZFS backup and mirroring is going to be so system specific, that it is better…
  mbreese on HN
- I disagree completely. And I really don't trust someone to write zfs replication scripts on their own that can properly handle differentials automatically or the new…
  feld on HN
- Yes, there are best-practices that should be used and advertised. But there is no way to have a generic tool that will work in some reasonable percentage of environments. Yes,…
  mbreese on HN
Assumes passwordless root SSH between hosts, which is poor practice
From 1 comment
- I don't have any suggestions, and I don't suspect that are anyone else will either. Why? Because ZFS backup and mirroring is going to be so system specific, that it is better…
  mbreese on HN
Does not handle resumable send or differentials as well as existing scripts
From 1 comment
- I disagree completely. And I really don't trust someone to write zfs replication scripts on their own that can properly handle differentials automatically or the new…
  feld on HN
Dismissive opening comment broke Show HN etiquette
From 1 comment
- Please don't be dismissive of new work on HN. It would be fine to mention prior work and ask how this relates, or to ask what prompted the author to build something new. But a…
  dang on HN

Rename the tx command to rx, fetch or pull
From 1 comment
- Thinking of terms used in communication, the naming of the 'zfsu tx' command gives me the reversed impression. As it actually receives data from a remote host, it should be 'zfsu…
  raimue on HN

What are the established alternatives?
From 1 comment
- What are the established alternatives? ZFS has tools do execute the actual snapshots and to do the actual mirroring, but nothing to manage which snapshots to keep or how to…
  kondro on HN

Plain SSH with custom scripts from Oracle ZFS docs
From 1 comment
- Just use SSH with custom scripts. It's pretty much part of the original ZFS documentation: http://docs.oracle.com/cd/E19253-01/819-5461/gbinw/
  mbreese on HN
zxfer
From 1 comment
- zxfer https://github.com/allanjude/zxfer zfstools https://github.com/bdrewery/zfstools zfsnap https://github.com/zfsnap/zfsnap
  feld on HN
zfstools
From 1 comment
- zxfer https://github.com/allanjude/zxfer zfstools https://github.com/bdrewery/zfstools zfsnap https://github.com/zfsnap/zfsnap
  feld on HN
zfsnap
From 1 comment
- zxfer https://github.com/allanjude/zxfer zfstools https://github.com/bdrewery/zfstools zfsnap https://github.com/zfsnap/zfsnap
  feld on HN
sanoid
From 1 comment
- sanoid https://github.com/jimsalterjrs/sanoid
  waz0wski on HN