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Feature #9166

zfs storage pool checkpoint

Added by Serapheim Dimitropoulos over 1 year ago. Updated over 1 year ago.

Status:
Closed
Priority:
Normal
Category:
zfs - Zettabyte File System
Start date:
2018-02-21
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage

Description

The idea of Storage Pool Checkpoint (aka zpool checkpoint) deals with exactly that. It can be thought of as a “pool-wide snapshot” (or a variation of extreme rewind that doesn’t corrupt your data).
It remembers the entire state of the pool at the point that it was taken and the user can revert back to it later or discard it. Its generic use case is an administrator that is about to perform a set of
destructive actions to ZFS as part of a critical procedure. She takes a checkpoint of the pool before performing the actions, then rewinds back to it if one of them fails or puts the pool into an
unexpected state. Otherwise, she discards it. With the assumption that no one else is making modifications to ZFS, she basically wraps all these actions into a “high-level transaction”.

History

#1

Updated by Electric Monk over 1 year ago

  • % Done changed from 0 to 100
  • Status changed from New to Closed

git commit 8671400134a11c848244896ca51a7db4d0f69da4

commit  8671400134a11c848244896ca51a7db4d0f69da4
Author: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Date:   2018-03-14T16:49:34.000Z

    9166 zfs storage pool checkpoint
    Reviewed by: Matthew Ahrens <mahrens@delphix.com>
    Reviewed by: John Kennedy <john.kennedy@delphix.com>
    Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
    Approved by: Richard Lowe <richlowe@richlowe.net>

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