[dm-devel] HP array multipath defaults.
Benjamin Marzinski
bmarzins at redhat.com
Thu Dec 21 22:34:19 UTC 2006
In Redhat bz #215509, you asked for changes to the default configurations for
some of the HP Arrays for RHEL4. Currently in the upstream Multipath code, the
defaults for the HP Arrays are:
{
.vendor = "(COMPAQ|HP)",
.product = "(MSA|HSV)1.*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = "1 hp_sw",
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = HP_SW,
},
{
.vendor = "HP",
.product = "A6189A",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = READSECTOR0,
},
{
.vendor = "HP",
.product = "HSV20.*",
.revision = "[123].*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = HP_SW,
},
{
.vendor = "HP",
.product = "HSV20.*",
.revision = "[^123].*",
.getuid = DEFAULT_GETUID,
.getprio = "mpath_prio_alua /dev/%n",
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = TUR,
},
{
.vendor = "HP",
.product = "HSV21.*",
.getuid = DEFAULT_GETUID,
.getprio = "mpath_prio_alua /dev/%n",
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = GROUP_BY_PRIO,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = TUR,
},
{
.vendor = "(HITACHI|HP)",
.product = "OPEN-.*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = READSECTOR0,
},
These values are different than those you specified in the bugzilla. I assume
that you want the configuration values from that bugzilla to also be used in
future releases, where appropriate. However, I still have some quesions. Here is
a possible set of configuration values, that includes the changes listed in the bugzilla.
{
.vendor = "(COMPAQ|HP)",
.product = "MSA1.*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = "1 hp_sw",
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = HP_SW,
},
{
.vendor = "(COMPAQ|HP)",
.product = "HSV1.*",
.getuid = DEFAULT_GETUID,
.getprio = "/sbin/mpath_prio_alua /dev/%n",
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = GROUP_BY_PRIO,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = 60,
.minio = 100,
.checker_name = TUR,
},
{
.vendor = "HP",
.product = "A6189A",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = DEFAULT_MINIO,
.checker_name = READSECTOR0,
},
{
.vendor = "HP",
.product = "HSV20.*",
.revision = "[123].*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = 60,
.minio = 100,
.checker_name = HP_SW,
},
{
.vendor = "HP",
.product = "HSV20.*",
.revision = "[^123].*",
.getuid = DEFAULT_GETUID,
.getprio = "/sbin/mpath_prio_alua /dev/%n",
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = GROUP_BY_PRIO,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = 60,
.minio = 100,
.checker_name = TUR,
},
{
.vendor = "HP",
.product = "HSV21.*",
.getuid = DEFAULT_GETUID,
.getprio = "/sbin/mpath_prio_alua /dev/%n",
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = GROUP_BY_PRIO,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = 60,
.minio = 100,
.checker_name = TUR,
},
{
.vendor = "(HITACHI|HP)",
.product = "OPEN-.*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
.minio = 100,
.checker_name = TUR,
},
Is the MSA configuration correct?
Should the MSA and A6189A devices also have a no_path_retry of 60, and a minio
of 100?
Are their certain revisions for the HSV devices that should still use the old
configuration, like certain revisions of the HSV20.* devices do?
Attached is a patch to replace the existing set of HP device configurations
with the ones I proposed above.
-Ben
Benjamin E. Marzinski
bmarzins at redhat.com
(612) 638-0517
-------------- next part --------------
--- hwtable.c 2006-11-27 17:16:41.000000000 -0600
+++ hwtable-patched.c 2006-12-21 14:28:21.000000000 -0600
@@ -76,7 +76,7 @@
},
{
.vendor = "(COMPAQ|HP)",
- .product = "(MSA|HSV)1.*",
+ .product = "MSA1.*",
.getuid = DEFAULT_GETUID,
.getprio = NULL,
.features = DEFAULT_FEATURES,
@@ -90,6 +90,21 @@
.checker_name = HP_SW,
},
{
+ .vendor = "(COMPAQ|HP)",
+ .product = "HSV1.*",
+ .getuid = DEFAULT_GETUID,
+ .getprio = "/sbin/mpath_prio_alua /dev/%n",
+ .features = DEFAULT_FEATURES,
+ .hwhandler = DEFAULT_HWHANDLER,
+ .selector = DEFAULT_SELECTOR,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
+ .rr_weight = RR_WEIGHT_NONE,
+ .no_path_retry = 60,
+ .minio = 100,
+ .checker_name = TUR,
+ },
+ {
.vendor = "HP",
.product = "A6189A",
.getuid = DEFAULT_GETUID,
@@ -116,8 +131,8 @@
.pgpolicy = MULTIBUS,
.pgfailback = FAILBACK_UNDEF,
.rr_weight = RR_WEIGHT_NONE,
- .no_path_retry = NO_PATH_RETRY_UNDEF,
- .minio = DEFAULT_MINIO,
+ .no_path_retry = 60,
+ .minio = 100,
.checker_name = HP_SW,
},
{
@@ -129,11 +144,11 @@
.features = DEFAULT_FEATURES,
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
.pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
- .no_path_retry = NO_PATH_RETRY_UNDEF,
- .minio = DEFAULT_MINIO,
+ .no_path_retry = 60,
+ .minio = 100,
.checker_name = TUR,
},
{
@@ -145,10 +160,10 @@
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = GROUP_BY_PRIO,
- .pgfailback = FAILBACK_UNDEF,
+ .pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
- .no_path_retry = NO_PATH_RETRY_UNDEF,
- .minio = DEFAULT_MINIO,
+ .no_path_retry = 60,
+ .minio = 100,
.checker_name = TUR,
},
/*
@@ -245,11 +260,11 @@
.hwhandler = DEFAULT_HWHANDLER,
.selector = DEFAULT_SELECTOR,
.pgpolicy = MULTIBUS,
- .pgfailback = FAILBACK_UNDEF,
+ .pgfailback = -FAILBACK_IMMEDIATE,
.rr_weight = RR_WEIGHT_NONE,
.no_path_retry = NO_PATH_RETRY_UNDEF,
- .minio = DEFAULT_MINIO,
- .checker_name = READSECTOR0,
+ .minio = 100,
+ .checker_name = TUR,
},
{
.vendor = "HITACHI",
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