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-rw-r--r--cmd/zpool/zpool_main.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index 884f0a62f..bfef6fc43 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -1220,6 +1220,26 @@ zpool_do_remove(int argc, char **argv)
}
/*
+ * Return 1 if a vdev is active (being used in a pool)
+ * Return 0 if a vdev is inactive (offlined or faulted, or not in active pool)
+ *
+ * This is useful for checking if a disk in an active pool is offlined or
+ * faulted.
+ */
+static int
+vdev_is_active(char *vdev_path)
+{
+ int fd;
+ fd = open(vdev_path, O_EXCL);
+ if (fd < 0) {
+ return (1); /* cant open O_EXCL - disk is active */
+ }
+
+ close(fd);
+ return (0); /* disk is inactive in the pool */
+}
+
+/*
* zpool labelclear [-f] <vdev>
*
* -f Force clearing the label for the vdevs which are members of
@@ -1328,9 +1348,23 @@ zpool_do_labelclear(int argc, char **argv)
case POOL_STATE_ACTIVE:
case POOL_STATE_SPARE:
case POOL_STATE_L2CACHE:
+ /*
+ * We allow the user to call 'zpool offline -f'
+ * on an offlined disk in an active pool. We can check if
+ * the disk is online by calling vdev_is_active().
+ */
+ if (force && !vdev_is_active(vdev))
+ break;
+
(void) fprintf(stderr, gettext(
- "%s is a member (%s) of pool \"%s\"\n"),
+ "%s is a member (%s) of pool \"%s\""),
vdev, zpool_pool_state_to_name(state), name);
+
+ if (force) {
+ (void) fprintf(stderr, gettext(
+ ". Offline the disk first to clear its label."));
+ }
+ printf("\n");
ret = 1;
goto errout;