ZFS Forensics – Recovering Files From a Destroyed Zpool | Hacker News Reader

ZFS Forensics – Recovering Files From a Destroyed Zpool

joyent.com

76 pointsres0nat0r15 comments

The more we all use ZFS, the better. I truly hope ZFS on Linux keeps up the momentum it has, because it will increase the value of the overall ZFS knowledge base (like this post).

For more interesting topics by Mr. Bruning, I encourage you to look through the past "Bruning Questions" posts: https://www.google.com/search?q=bruning+questions+site:joyen...

> it will increase the value of the overall ZFS knowledge base (like this post).

Joyent uses ZFS on illumos exclusively. Not Linux

I'm aware of Joyent's ZFS use on illumos and not Linux. What I meant is that ZFS on Linux has the chance to make ZFS become even more popular than it is already on illumos, FreeBSD, and Oracle platforms.

ZFS is now available on Linux via FUSE actually.

How does that compare, performance wise, to a 'real' ZFS implementation like on Solaris or FreeBSD?

The fuse one is not terribly fast, as expected. I think this is what you're really looking for: http://zfsonlinux.org/

Basically the standard ZFS driver with a shim for the kernel.

I use that and it has been amazing so far.

Honestly I can't say. I've only done basic tinkering on Linux to see if the basic functionality works...sorry.

Have used ZFS on Linux, FreeBSD and OpenSolaris for a few years now. Had a few startles with 'unrecoverable' zpool failures on both Linux & FreeBSD that were easily fixable with a OpenSolaris LiveCD. When operating a zpool, shouldn't matter too much which OS you're on, but do yourself a favor and use the OpenSolaris LiveCD with the latest zpool version if you need to do any sort of recovery.

https://en.wikipedia.org/wiki/Pro-drop_language

When I'm root, rm asks if I want to delete a file.

zpool destroy does not believe in asking.

Only because something set up an alias when you're root to pass -i to rm.

That's your distro's default aliases talking

  ~$ whoami
  root
  ~$ touch test
  ~$ rm test
  ~$

Should it ask?

You typed it!

UNIX is unforgiving by default. Think before you type.

TempleOS is reading HN today...

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