Problem occurs when we want to expand single disk raid0 array. This is done via degraded 2 disks raid4 array. When new spare is added to array, md immediately initiates recovery before mdadm can configure and start reshape. This is due fact that 2 disk raid4/5 array is special md case. Mdmon does nothing here because container is blocked. Put array in to frozen state allows mdadm to finish configuration before reshape is executed in md. Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx> --- Grow.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/Grow.c b/Grow.c index df352f8..8b9625d 100644 --- a/Grow.c +++ b/Grow.c @@ -1657,6 +1657,7 @@ static int reshape_array(char *container, int fd, char *devname, fprintf(stderr, Name ": level of %s changed to %s\n", devname, c); orig_level = info->array.level; + sysfs_freeze_array(info); } if (reshape.level > 0 && st->ss->external && -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
