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Teach zpool scrub to scrub only blocks in error log

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Added a flag '-e' in zpool scrub to scrub only blocks in error log. A
user can pause, resume and cancel the error scrub by passing additional
command line arguments -p -s just like a regular scrub. This involves
adding a new flag, creating new libzfs interfaces, a new ioctl, and the
actual iteration and read-issuing logic. Error scrubbing is executed in
multiple txg to make sure pool performance is not affected.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Co-authored-by: TulsiJain tulsi.jain@delphix.com
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #8995
Closes #12355
This commit is contained in:
George Amanakis
2021-12-17 21:35:28 +01:00
committed by Brian Behlendorf
parent e34e15ed6d
commit 482eeef804
29 changed files with 1602 additions and 71 deletions
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include/sys/sysevent/eventdefs.h
+5
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@@ -123,6 +123,11 @@ extern "C" {
#define ESC_ZFS_TRIM_CANCEL "trim_cancel"
#define ESC_ZFS_TRIM_RESUME "trim_resume"
#define ESC_ZFS_TRIM_SUSPEND "trim_suspend"
#define ESC_ZFS_ERRORSCRUB_START "errorscrub_start"
#define ESC_ZFS_ERRORSCRUB_FINISH "errorscrub_finish"
#define ESC_ZFS_ERRORSCRUB_ABORT "errorscrub_abort"
#define ESC_ZFS_ERRORSCRUB_RESUME "errorscrub_resume"
#define ESC_ZFS_ERRORSCRUB_PAUSED "errorscrub_paused"
/*
* datalink subclass definitions.