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

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Agenda

High Availability & Disaster Recovery

New offerings with SAP HANA Storage Replication

New features for SAP HANA System Replication

High Availability and Disaster

Recovery

SAP HANA Storage ReplicationWhat’s new for SAP HANA SPS 07

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(only China)

Scale Out (BW) S - L M M, L M M S - L M M planned

SoH: 1/2/4 TB 1/2/4 1/2/4 2/4 1 1 1/2/4 1/2 1/2/4

High Availability X X X X X X X X planned

DR – Storage Repl.:

AsyncX planned

DR – Storage Repl.:

SyncX X X X X planned

Certified HANA Hardware – November 2013*

* For most up to date list please go to the SAP Product Availability Matrix

First asynchronous solutions for SAP HANA Storage Replication certified, SAP note 1755396

adapted

SAP HANA System ReplicationWhat’s new for SAP HANA SPS 07

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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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Multi Tier System ReplicationFirst 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

Sync

Async

Production Local standby Remote standby systems

Three cascading systems with SPS 07

RPO ≠ 0

RTO < 30 min

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Zero Downtime maintenanceFeatured 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)

oDBSL 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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Compressed log transferReduction 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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Basic encryption for internal communicationOne 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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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.

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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