* [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus
@ 2023-05-31 13:57 Xose Vazquez Perez
2023-05-31 15:49 ` Martin Wilck
2023-06-05 9:38 ` Martin Wilck
0 siblings, 2 replies; 5+ messages in thread
From: Xose Vazquez Perez @ 2023-05-31 13:57 UTC (permalink / raw)
Cc: Matthias Rudolph, Xose Vazquez Perez, DM-DEVEL ML, Martin Wilck
ALUA is needed by Hitachi Global-Active Device (GAD):
https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/8.1/Global-Active_Device/Overview_of_global-active_device
Cc: Matthias Rudolph <Matthias.Rudolph@hitachivantara.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
---
libmultipath/hwtable.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 65bca744..a858ffa9 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -485,7 +485,9 @@ static struct hwentry default_hw[] = {
/* USP-V, HUS VM, VSP, VSP G1X00 and VSP GX00 families / HPE XP */
.vendor = "(HITACHI|HP|HPE)",
.product = "^OPEN-",
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
+ .no_path_retry = 10,
},
{
/* AMS other than AMS 2000 */
--
2.40.1
--
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^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus
2023-05-31 13:57 [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus Xose Vazquez Perez
@ 2023-05-31 15:49 ` Martin Wilck
2023-06-03 11:12 ` Xose Vazquez Perez
2023-06-05 9:38 ` Martin Wilck
1 sibling, 1 reply; 5+ messages in thread
From: Martin Wilck @ 2023-05-31 15:49 UTC (permalink / raw)
To: Xose Vazquez Perez; +Cc: Matthias Rudolph, DM-DEVEL ML
On Wed, 2023-05-31 at 15:57 +0200, Xose Vazquez Perez wrote:
> ALUA is needed by Hitachi Global-Active Device (GAD):
> https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/8.1/Global-Active_Device/Overview_of_global-active_device
Thanks, but where exactly did you find this information in the linked
document? I don't see ALUA mentioned. Unfortunately Hitachi chose to
use non-standard terminology... Is ALUA always active / supported in
these arrays?
Regards
Martin
PS: Btw, this sort of enhancement is likely soon obsoleted by the
autodetection feature that Ben's latest series would add.
>
> Cc: Matthias Rudolph <Matthias.Rudolph@hitachivantara.com>
> Cc: Martin Wilck <mwilck@suse.com>
> Cc: Benjamin Marzinski <bmarzins@redhat.com>
> Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
> Cc: DM-DEVEL ML <dm-devel@redhat.com>
> Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
> ---
> libmultipath/hwtable.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
> index 65bca744..a858ffa9 100644
> --- a/libmultipath/hwtable.c
> +++ b/libmultipath/hwtable.c
> @@ -485,7 +485,9 @@ static struct hwentry default_hw[] = {
> /* USP-V, HUS VM, VSP, VSP G1X00 and VSP GX00
> families / HPE XP */
> .vendor = "(HITACHI|HP|HPE)",
> .product = "^OPEN-",
> - .pgpolicy = MULTIBUS,
> + .pgpolicy = GROUP_BY_PRIO,
> + .pgfailback = -FAILBACK_IMMEDIATE,
> + .no_path_retry = 10,
> },
> {
> /* AMS other than AMS 2000 */
--
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus
2023-05-31 15:49 ` Martin Wilck
@ 2023-06-03 11:12 ` Xose Vazquez Perez
2023-06-05 9:39 ` Martin Wilck
0 siblings, 1 reply; 5+ messages in thread
From: Xose Vazquez Perez @ 2023-06-03 11:12 UTC (permalink / raw)
To: Martin Wilck; +Cc: Matthias Rudolph, DM-DEVEL ML
On 5/31/23 17:49, Martin Wilck wrote:
> On Wed, 2023-05-31 at 15:57 +0200, Xose Vazquez Perez wrote:
>> ALUA is needed by Hitachi Global-Active Device (GAD):
>> https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/8.1/Global-Active_Device/Overview_of_global-active_device
> Thanks, but where exactly did you find this information in the linked
> document? I don't see ALUA mentioned. Unfortunately Hitachi chose to
> use non-standard terminology...
No public info, personal e-mail from Matthias:
"We have also a config for ALUA. It is used for hardware copy between two
arrays and the server should only use the local paths:
SLES 12 SP2 ALUA:
device {
vendor "HITACHI"
product "OPEN-.*"
features "0"
path_grouping_policy group_by_prio
prio alua
path_selector "round-robin 0"
rr_weight uniform
no_path_retry 1
rr_min_io 100
path_checker directio
failback immediate
}
"
> Is ALUA always active / supported in these arrays?
Disable by default. And it is only needed with GAD setup:
Array settings:
"ALUA Mode" Enabled
"Path Mode" ALUA
"ALUA Permitted" YES
"ALUA Settable" YES
"Target Port Asymmetric Access State" Active/Optimized
Same case as HUAWEI https://github.com/opensvc/multipath-tools/commit/9283fa6663ad908fd0419edcef4795fbbbe9f09d
"no_path_retry 10" comes from:
https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/9.8.6/Volume_Management_-_VSP_5000_Series/Host_Attachment/05_Red_Hat_Linux_configuration_and_attachment#Device_Mapper_(DM)_Multipath_configuration.0D.0A____for_Red_Hat_Linux
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus
2023-06-03 11:12 ` Xose Vazquez Perez
@ 2023-06-05 9:39 ` Martin Wilck
0 siblings, 0 replies; 5+ messages in thread
From: Martin Wilck @ 2023-06-05 9:39 UTC (permalink / raw)
To: Xose Vazquez Perez; +Cc: Matthias Rudolph, DM-DEVEL ML
On Sat, 2023-06-03 at 13:12 +0200, Xose Vazquez Perez wrote:
> On 5/31/23 17:49, Martin Wilck wrote:
>
> > On Wed, 2023-05-31 at 15:57 +0200, Xose Vazquez Perez wrote:
> > > ALUA is needed by Hitachi Global-Active Device (GAD):
> > > https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/8.1/Global-Active_Device/Overview_of_global-active_device
>
> > Thanks, but where exactly did you find this information in the
> > linked
> > document? I don't see ALUA mentioned. Unfortunately Hitachi chose
> > to
> > use non-standard terminology...
>
> No public info, personal e-mail from Matthias:
>
> "We have also a config for ALUA. It is used for hardware copy between
> two
> arrays and the server should only use the local paths:
>
> SLES 12 SP2 ALUA:
>
> device {
> vendor "HITACHI"
> product "OPEN-.*"
> features "0"
> path_grouping_policy group_by_prio
> prio alua
> path_selector "round-robin 0"
> rr_weight uniform
> no_path_retry 1
> rr_min_io 100
> path_checker directio
> failback immediate
> }
> "
>
> > Is ALUA always active / supported in these arrays?
>
> Disable by default. And it is only needed with GAD setup:
>
> Array settings:
> "ALUA Mode" Enabled
> "Path Mode" ALUA
> "ALUA Permitted" YES
> "ALUA Settable" YES
> "Target Port Asymmetric Access State" Active/Optimized
>
> Same case as HUAWEI
> https://github.com/opensvc/multipath-tools/commit/9283fa6663ad908fd0419edcef4795fbbbe9f09d
>
> "no_path_retry 10" comes from:
> https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/9.8.6/Volume_Management_-_VSP_5000_Series/Host_Attachment/05_Red_Hat_Linux_configuration_and_attachment#Device_Mapper_(DM)_Multipath_configuration.0D.0A____for_Red_Hat_Linux
Thanks a lot. I'll apply your patch, adding part of this information to
the commit message.
Martin
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus
2023-05-31 13:57 [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus Xose Vazquez Perez
2023-05-31 15:49 ` Martin Wilck
@ 2023-06-05 9:38 ` Martin Wilck
1 sibling, 0 replies; 5+ messages in thread
From: Martin Wilck @ 2023-06-05 9:38 UTC (permalink / raw)
To: Xose Vazquez Perez; +Cc: Matthias Rudolph, DM-DEVEL ML
On Wed, 2023-05-31 at 15:57 +0200, Xose Vazquez Perez wrote:
> ALUA is needed by Hitachi Global-Active Device (GAD):
> https://knowledge.hitachivantara.com/Documents/Management_Software/SVOS/8.1/Global-Active_Device/Overview_of_global-active_device
>
> Cc: Matthias Rudolph <Matthias.Rudolph@hitachivantara.com>
> Cc: Martin Wilck <mwilck@suse.com>
> Cc: Benjamin Marzinski <bmarzins@redhat.com>
> Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
> Cc: DM-DEVEL ML <dm-devel@redhat.com>
> Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
> ---
> libmultipath/hwtable.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
> index 65bca744..a858ffa9 100644
> --- a/libmultipath/hwtable.c
> +++ b/libmultipath/hwtable.c
> @@ -485,7 +485,9 @@ static struct hwentry default_hw[] = {
> /* USP-V, HUS VM, VSP, VSP G1X00 and VSP GX00
> families / HPE XP */
> .vendor = "(HITACHI|HP|HPE)",
> .product = "^OPEN-",
> - .pgpolicy = MULTIBUS,
> + .pgpolicy = GROUP_BY_PRIO,
> + .pgfailback = -FAILBACK_IMMEDIATE,
> + .no_path_retry = 10,
> },
> {
> /* AMS other than AMS 2000 */
Reviewed-by: Martin Wilck <mwilck@suse.com>
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2023-05-31 13:57 [dm-devel] [PATCH] multipath-tools: adapt HITACHI/OPEN- config to work with alua and multibus Xose Vazquez Perez
2023-05-31 15:49 ` Martin Wilck
2023-06-03 11:12 ` Xose Vazquez Perez
2023-06-05 9:39 ` Martin Wilck
2023-06-05 9:38 ` Martin Wilck
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