diff options
| -rw-r--r-- | module/zfs/metaslab.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/module/zfs/metaslab.c b/module/zfs/metaslab.c index f01a8893e..f49a8adc6 100644 --- a/module/zfs/metaslab.c +++ b/module/zfs/metaslab.c @@ -118,6 +118,11 @@ int metaslab_prefetch_limit = SPA_DVAS_PER_BP; int metaslab_smo_bonus_pct = 150; /* + * Should we be willing to write data to degraded vdevs? + */ +boolean_t zfs_write_to_degraded = B_FALSE; + +/* * ========================================================================== * Metaslab classes * ========================================================================== @@ -1725,10 +1730,13 @@ top: /* * Avoid writing single-copy data to a failing vdev + * unless the user instructs us that it is okay. */ if ((vd->vdev_stat.vs_write_errors > 0 || vd->vdev_state < VDEV_STATE_HEALTHY) && - d == 0 && dshift == 3) { + d == 0 && dshift == 3 && + !(zfs_write_to_degraded && vd->vdev_state == + VDEV_STATE_DEGRADED)) { all_zero = B_FALSE; goto next; } |