There are just two files I touch, so the patch is simple:
diff -Naur 3/multipath-tools/libmultipath/hwtable.c 4/multipath-tools/libmultipath/hwtable.c
--- 3/multipath-tools/libmultipath/hwtable.c 2016-01-14 17:47:06.000000000 -0800
+++ 4/multipath-tools/libmultipath/hwtable.c 2016-01-14 18:33:45.000000000 -0800
@@ -1166,6 +1166,22 @@
.prio_name = PRIO_ALUA,
.prio_args = NULL,
},
+ {
+ .vendor = "PURE",
+ .product = "FlashArray",
+ .features = DEFAULT_FEATURES,
+ .hwhandler = DEFAULT_HWHANDLER,
+ .selector = "queue-length 0",
+ .pgpolicy = MULTIBUS,
+ .pgfailback = -FAILBACK_IMMEDIATE,
+ .checker_name = TUR,
+ .fast_io_fail = 10,
+ .user_friendly_names = USER_FRIENDLY_NAMES_OFF,
+ .prio_name = DEFAULT_PRIO,
+ .no_path_retry = 0,
+ .dev_loss = 60,
+ .prio_args = NULL,
+ },
/*
* EOL
*/
diff -Naur 3/multipath-tools/multipath.conf.defaults 4/multipath-tools/multipath.conf.defaults
--- 3/multipath-tools/multipath.conf.defaults 2016-01-14 17:47:06.000000000 -0800
+++ 4/multipath-tools/multipath.conf.defaults 2016-01-14 18:35:50.000000000 -0800
@@ -940,6 +940,17 @@
# rr_weight "uniform"
# no_path_retry "queue"
# }
+# device {
+# vendor "PURE"
+# path_selector "queue-length 0"
+# path_grouping_policy "multibus"
+# path_checker "tur"
+# fast_io_fail_tmo 10
+# user_friendly_names "no"
+# no_path_retry 0
+# features 0
+# dev_loss_tmo 60
+# }
#}
#multipaths {
#}
Thanks,
Brian
Brian
On Tue, Jan 19, 2016 at 8:48 AM, Christophe Varoqui <christophe.varoqui@xxxxxxxxxxx> wrote:
Hi,and when you are ready, you can post the patch here so I can merge it upstream.Thanks,Christophe VaroquiOpenSVCOn Tue, Jan 19, 2016 at 5:35 PM, Mauricio Faria de Oliveira <mauricfo@xxxxxxxxxxxxxxxxxx> wrote:On 11/05/2015 04:59 AM, Doron Tal1 wrote:
I would like to know how and what procedure i should follow if i want to
modify or add new settings to the device mapper defaults.
The defaults are in hwtable.c [1].
So for example how can i modify existing compiled settings for the
2810XIV device? in case i want to add a new device and it settings, how
can it be done?
To modify the compiled settings, you have to modify it and recompile.
To modify the runtime settings (based on the defaults), you can modify
/etc/multipath.conf (see its manpage [2] with 'man multipath.conf').
You can verify the the setting values used during multipath discovery
with 'multipath -v3' for example, or "multipathd -k'show config'".
Hope this might still help at this time,
[1] http://git.opensvc.com/gitweb.cgi?p=multipath-tools/.git;a=blob;f=libmultipath/hwtable.c
[2] http://git.opensvc.com/gitweb.cgi?p=multipath-tools/.git;a=blob;f=multipath/multipath.conf.5
--
Mauricio Faria de Oliveira
IBM Linux Technology Center
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