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Bug #5352

closed

scrub should pause when there is some dirty data

Added by Matthew Ahrens over 7 years ago. Updated over 7 years ago.

Status:
Closed
Priority:
Normal
Category:
zfs - Zettabyte File System
Start date:
2014-11-15
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

Scrub/resilver should pause if there is enough dirty data. Otherwise, we could
scrub for the maximum of zfs_txg_timeout seconds, despite a high % dirty data
and subsequent throttling of incoming write requests.

We should pause when dirty data is >
zfs_vdev_async_write_active_min_dirty_percent. i.e. once we start to increase
the number of concurrent async writes.

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