SAP HANA Hot Standby vs. Standby

[Former Member]

Hello All,

What is the difference between Hot standby and standby in SAP HANA?

Does Installing HANA on gpfs makes it a Hot standby and Installing on other file systems makes it standby?

Any information is appreciated

Regards,

Dheeraj

[Former Member]

I am not too used about the terms "hot standby" and "standby" in SAP HANA environments, but finally it should be linked to SAP HANA system replication environments. See SAP Note 1999880 for more information. You have different levels of synchronization. If you know Oracle data guard, you can compare it this way (Oracle -> HANA):

- MAXIMUM PERFORMANCE -> ASYNC

- MAXIMUM AVAILABILITY -> SYNC

- MAXIMUM PROTECTION-> SYNC full-sync

[Former Member]

Thanks Martin.

I was not referring to System Replication. In case of a 4 + 1 HANA enviroment the standy by node is what I am referring to.

Regards,
Dheeraj

[Former Member]

Okay, I see, you mean standby node, not standby database. Where have you read about a "hot standby node"? I can't find it in the high availability document at http://scn.sap.com/docs/DOC-60334.