[dm-devel] [PATCH 2/4] multipath-tools: update path checker info in multipath.conf.5

[Xose Vazquez Perez]

>From now on tur is by default, and warn about directio drawbacks.

Cc: Shyam Sundar <g.shyamsundar at yahoo.co.in>
Cc: Edward Goggin, EMC <egoggin at emc.com>
Cc: Matthias Rudolph <matthias.rudolph at hds.com>
Cc: Brian King, IBM <brking at linux.vnet.ibm.com>
Cc: Yacine Kheddache <yacine at alyseo.com>
Cc: Srinivasan Ramani <srinivas.ramani at oracle.com>
Cc: Bart Brooks, Pivot3 <bartb at pivot3.com>
Cc: Martin George <marting at netapp.com>
Cc: Sean Stewart <sean.stewart at netapp.com>
Cc: Benjamin Marzinski <bmarzins at redhat.com>
Cc: Hannes Reinecke <hare at suse.de>
Cc: Christophe Varoqui <christophe.varoqui at opensvc.com>
Cc: device-mapper development <dm-devel at redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez at gmail.com>
---
 multipath/multipath.conf.5 | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index e57b8e6..9f0d194 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -271,7 +271,7 @@ are
 .TP 12
 .B readsector0
 (Deprecated) Read the first sector of the device. This checker is being
-deprecated, please use \fIdirectio\fR instead
+deprecated, please use \fItur\fR instead
 .TP
 .B tur
 Issue a
@@ -289,9 +289,11 @@ Check the path state for HP storage arrays with Active/Standby firmware.
 Check the path state for LSI/Engenio/NetApp E-Series RDAC storage controller.
 .TP
 .B directio
-Read the first sector with direct I/O.
+(Deprecated) Read the first sector with direct I/O. This checker is being
+deprecated, it will cause spurious path failures under high load.
+Please use \fItur\fR instead.
 .TP
-Default value is \fIdirectio\fR.
+Default value is \fItur\fR.
 .RE
 .TP
 .B failback
-- 
2.5.5