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Add ability to scrub from last scrubbed txg

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Some users might want to scrub only new data because they would like
to know if the new write wasn't corrupted.  This PR adds possibility
scrub only newly written data.

This introduces new `last_scrubbed_txg` property, indicating the
transaction group (TXG) up to which the most recent scrub operation
has checked and repaired the dataset, so users can run scrub only
from the last saved point. We use a scn_max_txg and scn_min_txg
which are already built into scrub, to accomplish that.

Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mariusz Zaborski <mariusz.zaborski@klarasystems.com>
Sponsored-By: Wasabi Technology, Inc.
Sponsored-By: Klara Inc.
Closes #16301
This commit is contained in:
Mariusz Zaborski
2024-12-04 20:21:45 +01:00
committed by GitHub
parent 1cd2419ece
commit 4b4e346b9f
19 changed files with 264 additions and 35 deletions
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cmd/zpool/zpool_main.c
+23 -3
View File
@@ -512,7 +512,8 @@ get_usage(zpool_help_t idx)
return (gettext("\tinitialize [-c | -s | -u] [-w] <pool> "
"[<device> ...]\n"));
case HELP_SCRUB:
return (gettext("\tscrub [-s | -p] [-w] [-e] <pool> ...\n"));
return (gettext("\tscrub [-e | -s | -p | -C] [-w] "
"<pool> ...\n"));
case HELP_RESILVER:
return (gettext("\tresilver <pool> ...\n"));
case HELP_TRIM:
@@ -8429,12 +8430,13 @@ wait_callback(zpool_handle_t *zhp, void *data)
}
/*
* zpool scrub [-s | -p] [-w] [-e] <pool> ...
* zpool scrub [-e | -s | -p | -C] [-w] <pool> ...
*
* -e Only scrub blocks in the error log.
* -s Stop. Stops any in-progress scrub.
* -p Pause. Pause in-progress scrub.
* -w Wait. Blocks until scrub has completed.
* -C Scrub from last saved txg.
*/
int
zpool_do_scrub(int argc, char **argv)
@@ -8450,9 +8452,10 @@ zpool_do_scrub(int argc, char **argv)
boolean_t is_error_scrub = B_FALSE;
boolean_t is_pause = B_FALSE;
boolean_t is_stop = B_FALSE;
boolean_t is_txg_continue = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, "spwe")) != -1) {
while ((c = getopt(argc, argv, "spweC")) != -1) {
switch (c) {
case 'e':
is_error_scrub = B_TRUE;
@@ -8466,6 +8469,9 @@ zpool_do_scrub(int argc, char **argv)
case 'w':
wait = B_TRUE;
break;
case 'C':
is_txg_continue = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
@@ -8477,6 +8483,18 @@ zpool_do_scrub(int argc, char **argv)
(void) fprintf(stderr, gettext("invalid option "
"combination :-s and -p are mutually exclusive\n"));
usage(B_FALSE);
} else if (is_pause && is_txg_continue) {
(void) fprintf(stderr, gettext("invalid option "
"combination :-p and -C are mutually exclusive\n"));
usage(B_FALSE);
} else if (is_stop && is_txg_continue) {
(void) fprintf(stderr, gettext("invalid option "
"combination :-s and -C are mutually exclusive\n"));
usage(B_FALSE);
} else if (is_error_scrub && is_txg_continue) {
(void) fprintf(stderr, gettext("invalid option "
"combination :-e and -C are mutually exclusive\n"));
usage(B_FALSE);
} else {
if (is_error_scrub)
cb.cb_type = POOL_SCAN_ERRORSCRUB;
@@ -8485,6 +8503,8 @@ zpool_do_scrub(int argc, char **argv)
cb.cb_scrub_cmd = POOL_SCRUB_PAUSE;
} else if (is_stop) {
cb.cb_type = POOL_SCAN_NONE;
} else if (is_txg_continue) {
cb.cb_scrub_cmd = POOL_SCRUB_FROM_LAST_TXG;
} else {
cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;
}