Teach zpool scrub to scrub only blocks in error log

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

lib/libzfs/libzfs.abi

+2 -1

View File

@@ -5717,7 +5717,8 @@
       <enumerator name='POOL_SCAN_NONE' value='0'/>
       <enumerator name='POOL_SCAN_SCRUB' value='1'/>
       <enumerator name='POOL_SCAN_RESILVER' value='2'/>
       <enumerator name='POOL_SCAN_FUNCS' value='3'/>
       <enumerator name='POOL_SCAN_ERRORSCRUB' value='3'/>
       <enumerator name='POOL_SCAN_FUNCS' value='4'/>
     </enum-decl>
     <typedef-decl name='pool_scan_func_t' type-id='1b092565' id='7313fbe2'/>
     <enum-decl name='pool_scrub_cmd' id='a1474cbd'>