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Merge pull request #106815 from rdeltcheva/sles-azurelb
Change in SLES HA documentation to switch to RA azure-lb
2 parents 6405245 + fe0f240 commit e853a9e

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‎articles/virtual-machines/workloads/sap/dbms-guide-ha-ibm.md

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@@ -14,7 +14,7 @@ ms.service: virtual-machines-linux
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ms.topic: article
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ms.tgt_pltfrm: vm-linux
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ms.workload: infrastructure
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ms.date: 02/25/2020
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ms.date: 03/06/2020
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ms.author: juergent
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2020
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@@ -348,7 +348,12 @@ The following items are prefixed with either:
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> [!IMPORTANT]
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> Recent testing revealed situations, where netcat stops responding to requests due to backlog and its limitation of handling only one connection. The netcat resource stops listening to the Azure Load balancer requests and the floating IP becomes unavailable.
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> For existing Pacemaker clusters, we recommend replacing netcat with socat, following the instructions in [Azure Load-Balancer Detection Hardening](https://www.suse.com/support/kb/doc/?id=7024128). Note that the change will require brief downtime.
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> For existing Pacemaker clusters, we recommended in the past replacing netcat with socat. Currently we recommend using azure-lb resource agent, which is part of package resource-agents, with the following package version requirements:
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> - For SLES 12 SP4/SP5, the version must be at least resource-agents-4.3.018.a7fb5035-3.30.1.
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> - For SLES 15/15 SP1, the version must be at least resource-agents-4.3.0184.6ee15eb2-4.13.1.
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>
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> Note that the change will require brief downtime.
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> For existing Pacemaker clusters, if the configuration was already changed to use socat as described in [Azure Load-Balancer Detection Hardening](https://www.suse.com/support/kb/doc/?id=7024128), there is no requirement to switch immediately to azure-lb resource agent.
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**[1]** IBM Db2 HADR-specific Pacemaker configuration:
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<pre><code># Put Pacemaker into maintenance mode
@@ -373,9 +378,7 @@ sudo crm configure primitive rsc_ip_db2ptr_<b>PTR</b> IPaddr2 \
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params ip="<b>10.100.0.10</b>"
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# Configure probe port for Azure load Balancer
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sudo crm configure primitive rsc_nc_db2ptr_<b>PTR</b> anything \
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params binfile="/usr/bin/socat" cmdline_options="-U TCP-LISTEN:<b>62500</b>,backlog=10,fork,reuseaddr /dev/null" \
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op monitor timeout="20s" interval="10" depth="0"
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sudo crm configure primitive rsc_nc_db2ptr_<b>PTR</b> azure-lb port=<b>62500</b>
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sudo crm configure group g_ip_db2ptr_<b>PTR</b> rsc_ip_db2ptr_<b>PTR</b> rsc_nc_db2ptr_<b>PTR</b>
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@@ -408,7 +411,7 @@ sudo crm configure property maintenance-mode=false</pre></code>
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# stonith-sbd (stonith:external/sbd): Started azibmdb02
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# Resource Group: g_ip_db2ptr_PTR
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# rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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# rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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# rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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# Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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# Masters: [ azibmdb02 ]
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# Slaves: [ azibmdb01 ]
@@ -545,7 +548,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Stopped
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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rsc_Db2_db2ptr_PTR (ocf::heartbeat:db2): Promoting azibmdb01
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Slaves: [ azibmdb02 ]
@@ -582,7 +585,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb02 ]
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Slaves: [ azibmdb01 ]
@@ -641,7 +644,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb02 ]
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Stopped: [ azibmdb01 ]
@@ -673,7 +676,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Stopped
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Slaves: [ azibmdb02 ]
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Stopped: [ azibmdb01 ]
@@ -696,7 +699,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb01 ]
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Slaves: [ azibmdb02 ]
@@ -725,7 +728,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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rsc_Db2_db2ptr_PTR (ocf::heartbeat:db2): FAILED azibmdb02
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Masters: [ azibmdb01 ]
@@ -746,7 +749,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb01 ]
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Slaves: [ azibmdb02 ]
@@ -769,7 +772,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb01 ]
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Slaves: [ azibmdb02 ]</code></pre>
@@ -789,7 +792,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Stopped
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Stopped
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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rsc_Db2_db2ptr_PTR (ocf::heartbeat:db2): FAILED azibmdb01
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Slaves: [ azibmdb02 ]
@@ -809,7 +812,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb01
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb02 ]
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Stopped: [ azibmdb01 ]
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb01 ]
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Slaves: [ azibmdb02 ]</code></pre>
@@ -862,7 +865,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb01
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb01
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb01 ]
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Slaves: [ azibmdb02 ]</code></pre>
@@ -879,7 +882,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb02 ]
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Stopped: [ azibmdb01 ] </code></pre>
@@ -897,7 +900,7 @@ Full list of resources:
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stonith-sbd (stonith:external/sbd): Started azibmdb02
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Resource Group: g_ip_db2ptr_PTR
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rsc_ip_db2ptr_PTR (ocf::heartbeat:IPaddr2): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:anything): Started azibmdb02
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rsc_nc_db2ptr_PTR (ocf::heartbeat:azure-lb): Started azibmdb02
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Master/Slave Set: msl_Db2_db2ptr_PTR [rsc_Db2_db2ptr_PTR]
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Masters: [ azibmdb02 ]
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Slaves: [ azibmdb01 ]</code></pre>
@@ -906,5 +909,3 @@ stonith-sbd (stonith:external/sbd): Started azibmdb02
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- [High-availability architecture and scenarios for SAP NetWeaver](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/sap-high-availability-architecture-scenarios)
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- [Set up Pacemaker on SUSE Linux Enterprise Server in Azure](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-suse-pacemaker)
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