What´s New? SAP HANA SPS 07 - Scale-Out, High Availability and Disaster Recovery

1. What´s New? SAP HANA SPS 07
Scale-Out, High Availability and Disaster Recovery
(Delta from SPS 06 to SPS 07)
SAP HANA Product Management
November, 2013

2. Agenda
High Availability & Disaster Recovery
New offerings with SAP HANA Storage Replication
New features for SAP HANA System Replication
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3. High Availability and Disaster
Recovery

4. SAP HANA Storage Replication
What’s new for SAP HANA SPS 07

5. Certified HANA Hardware – November 2013*
(only China)
Scale Out (BW)
S-L
M
M, L
M
M
S-L
M
SoH: 1/2/4 TB
1/2/4
1/2/4
2/4
1
1
1/2/4
1/2
X
X
X
X
X
X
X
High Availability
DR – Storage Repl.:
Async
DR – Storage Repl.:
Sync
X
X
X
X
X
planned
1/2/4
X
planned
planned
X
M
planned
First asynchronous solutions for SAP HANA Storage Replication certified, SAP note 1755396
adapted
* For most up to date list please go to the SAP Product Availability Matrix
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6. SAP HANA System Replication
What’s new for SAP HANA SPS 07

7. Agenda
High Availability & Disaster Recovery
New offerings with SAP HANA Storage Replication
New features for SAP HANA System Replication
o Multi Tier System Replication allowing first 1:n setups:
Three cascading systems in a row
o Zero Downtime maintenance
o Compressed log transfer
o Basic encryption for internal communication
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8. Multi Tier System Replication
First 1:n setups: Three cascading systems in a row
Since SPS 07 SAP HANA System
Replication allows chains of
databases with more than one
shadow system.
 Multi Tier System Replication
(Cascading systems)
 Different transfer modes –
(SYNC/ASYNC) can be combined.
 Allows more sophisticated landscapes
where System Replication can fuel
not only one other data center.
 Further extensions of this 1:n concept
are planned for later releases
Campus
cluster
Metro
cluster
Geo
cluster
Async
Sync
RPO ≠ 0
RTO < 30 min
Production
Local standby
Remote standby systems
Three cascading systems with SPS 07
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9. Zero Downtime maintenance
Featured by SAP NetWeaver ABAP stack
As an evolution of “Near Zero Downtime Maintenance”, SPS 07 now offers
Zero Downtime Maintenance
 Based on connectivity suspend feature of the SAP NetWeaver ABAP stack (SAP note 1913302)
o DBSL of the database interface decouples transaction management between ABAP and HANA database
o This keeps transaction on ABAP layer alive and allows to change components (software versions) on the
layers below on secondary (shadow) HANA instance
 When used in combination with SAP HANA software update, command line tool hdbupd has to used to do the
update of SAP HANA software on secondary (HLM can not work without an online database and the secondary
is not reachable without connecting it through the primary HANA instance)
 Further information also in Step-by-Step Implementation Guide for SAP HANA System Replication:
https://scn.sap.com/docs/DOC-47702
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10. Compressed log transfer
Reduction of transfer amount
HANA Log pages transfer with SAP HANA System Replication before SPS 07




Uncompressed
Same format as log pages in online Log Volumes
Size 4kB up to 1 MB granularity
Commit can force the IO system to write down smaller chunks (log pages) because of synchronous character
With SPS 07 the free space in these log pages can be compressed during transfer time
 Commits often produce nearly empty pages which now can be shortened
 Reduction of over all transfer amount.
 On secondary, these shortened pages are refit individually into official sized page and stored into log volumes
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11. Basic encryption for internal communication
One security layer to rule them all
Consolidating encryption entities
Client communication encryption already available for long time (SSL)
 Realized on individual usage and engine
Implementing a general purpose, basic encryption layer for all internal and external
communication needs
SAP HANA System Replication uses this new option for the internal communication
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12. Disclaimer
This presentation outlines our general product direction and should not be relied on in making
a purchase decision. This presentation is not subject to your license agreement or any other
agreement with SAP.
SAP has no obligation to pursue any course of business outlined in this presentation or to
develop or release any functionality mentioned in this presentation. This presentation and
SAP’s strategy and possible future developments are subject to change and may be changed
by SAP at any time for any reason without notice.
This document is provided without a warranty of any kind, either express or implied, including
but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or
non-infringement. SAP assumes no responsibility for errors or omissions in this document,
except if such damages were caused by SAP intentionally or grossly negligent.
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13. Thank you
Contact information
Ralf Czekalla
SAP HANA Product Management
AskSAPHANA@sap.com
To get the best overview of what’s new in SAP HANA SPS 07, read this blog.

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