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authorBrian Behlendorf <[email protected]>2014-06-26 16:36:13 -0700
committerBrian Behlendorf <[email protected]>2014-06-27 11:44:36 -0700
commitd4aae2a05475ed7a9b39bd0c6b4fe99085a1cbd5 (patch)
treeb67982bf7a993ac63265986a3de5ee86e0c0626c /lib/libzfs/libzfs_pool.c
parent628668a39f48e836260965e5b33e101c78f16b79 (diff)
Improve differing sector size error
When adding or replacing a vdev with a different sector size the error message should be more useful. In addition to describing the problem provide a hint that the '-o ashift' option can be used to override the optimal default value. Since using a non-optimal value may incur a significant performance penalty we should issue this error. But there a numerous reasons why a administrator may wish to do this anyway. Signed-off-by: Niklas Edmundsson <ZNikke@github> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2421
Diffstat (limited to 'lib/libzfs/libzfs_pool.c')
-rw-r--r--lib/libzfs/libzfs_pool.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/libzfs/libzfs_pool.c b/lib/libzfs/libzfs_pool.c
index b1ddd983d..9d0366711 100644
--- a/lib/libzfs/libzfs_pool.c
+++ b/lib/libzfs/libzfs_pool.c
@@ -2753,10 +2753,11 @@ zpool_vdev_attach(zpool_handle_t *zhp,
case EDOM:
/*
- * The new device has a different alignment requirement.
+ * The new device has a different optimal sector size.
*/
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "devices have different sector alignment"));
+ "new device has a different optimal sector size; use the "
+ "option '-o ashift=N' to override the optimal size"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;