You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Copy file name to clipboardExpand all lines: articles/sap/workloads/disaster-recovery-sap-hana-suse.md
+3-7Lines changed: 3 additions & 7 deletions
Display the source diff
Display the rich diff
Original file line number
Diff line number
Diff line change
@@ -47,7 +47,7 @@ With SAP HANA HA provider [SAPHanaSR](./sap-hana-high-availability.md#implement-
47
47
Failure of the third node won't trigger any cluster action. Cluster detects the replication status of connected sites and the monitored attribute for third site can change between SOK and SFAIL state. Any takeover tests to third/DR site or executing your DR exercise process should first place the cluster resources into maintenance mode to prevent any undesired cluster action.
48
48
49
49
Example of a multi-target system replication system. For more information, see [SAP documentation](https://help.sap.com/docs/SAP_HANA_PLATFORM/4e9b18c116aa42fc84c7dbfd02111aba/2e6c71ab55f147e19b832565311a8e4e.html).
50
-

50
+

51
51
52
52
1. Deploy Azure resources for the third node. Depending on your requirements, you can use a different Azure region for disaster recovery purposes.
53
53
Steps required for the HANA scale-out on third site are mirroring steps to deploy the [HANA scale-up cluster](./sap-hana-high-availability.md#deploy-for-linux). Deploy the third node following the Azure infrastructure, operating system and HANA installation steps for first node of the Pacemaker cluster, with the following exceptions:
@@ -96,16 +96,14 @@ Example of a multi-target system replication system. For more information, see [
96
96
97
97
Cluster detects the replication status of connected sites and the monitored attributed can change between SOK and SFAIL. No cluster action if the replication to DR site fails.
98
98
99
-
</details>
100
-
101
99
## HANA scale-out: Add HANA multi-target system replication for DR purposes
102
100
103
101
With SAP HANA HA provider [SAPHanaSrMultiTarget](./sap-hana-high-availability-scale-out-hsr-suse.md#implement-hana-ha-hooks-saphanasrmultitarget-and-suschksrv), you can add a third HANA scale-out site. This third site is often used fordisaster recovery (DR)in another Azure region. The Pacemaker environment is aware of a HANA multi-target DR setup.
104
102
105
103
Failure of the third node won't trigger any cluster action. Cluster detects the replication status of connected sites and the monitored attribute for third site can change between SOK and SFAIL state. Any takeover tests to third/DR site or executing your DR exercise process should first place the cluster resources into maintenance mode to prevent any undesired cluster action.
106
104
107
105
Example of a multi-target system replication system. For more information, see [SAP documentation](https://help.sap.com/docs/SAP_HANA_PLATFORM/4e9b18c116aa42fc84c7dbfd02111aba/2e6c71ab55f147e19b832565311a8e4e.html).
108
-

106
+

109
107
110
108
1. Deploy Azure resources for the third site. Depending on your requirements, you can use a different Azure region for disaster recovery purposes.
111
109
Steps required for the HANA scale-out on third site are mirroring steps to deploy the [HANA scale-out cluster](./sap-hana-high-availability-scale-out-hsr-suse.md#set-up-the-infrastructure). Deploy the third site following the Azure infrastructure, operating system and HANA installation steps for SITE1 of the scale-out cluster, with the following exceptions:
@@ -155,8 +153,6 @@ Example of a multi-target system replication system. For more information, see [
155
153
156
154
Cluster detects the replication status of connected sites and the monitored attributed can change between SOK and SFAIL. No cluster action if the replication to DR site fails.
157
155
158
-
</details>
159
-
160
156
## Auto-registering third site
161
157
162
158
During planned or unplanned takeover event between the two Pacemaker cluster sites, HSR to third site will be also interrupted. Pacemaker doesn't modify HANA replication to third site.
@@ -165,7 +161,7 @@ SAP provides since HANA 2 SPS 04 parameter `register_secondaries_on_takeover`. W
165
161
166
162
For HSR [multi-tier](https://help.sap.com/docs/SAP_HANA_PLATFORM/6b94445c94ae495c83a19646e7c3fd56/f730f308fede4040bcb5ccea6751e74d.html), no automatic SAP HANA registration of the third site exists. You need to manually register the third site to the current secondary, to keep HSR replication chain for multi-tier.
167
163
168
-

164
+

0 commit comments